Cosmetic composition applicable to the skin and based on a volatile mixture of alkanes

Abstract

The invention relates to a cosmetic composition applicable to the skin, characterized in that it comprises a volatile mixture of alkanes, said volatile mixture of alkanes comprising: a) from 20 to 100% of a fraction A which comprises at least one C≤10 branched alkane; b) from 0 to 80% of a fraction B which comprises at least one C>10 linear or branched alkane; and characterized in that said volatile mixture of alkanes has a flash point of less than 55°C measured in accordance with standard ASTM D93 and represents a weight percentage greater than or equal to 10% relative to the total weight of the composition. The invention also relates to a process for obtaining said composition.

Description

COSMETIC COMPOSITION APPLICABLE TO THE SKIN BASED ON A VOLATILE MIXTURE OF ALKANES

[0001] This application concerns the technical field of cosmetics.

[0002] More specifically, the invention relates to cosmetic compositions to be applied to the skin and more particularly to compositions such as a makeup primer or base, a blush, an eyeshadow, a foundation or a makeup remover formulation.

[0003] Even more specifically, the invention relates to a composition applicable to the skin comprising a mixture of volatile alkanes.

[0004] As part of this request, a number of definitions must be given.

[0005] For the purposes of the present invention, foundation means a formulation intended to unify the epidermis and to lightly color it. It must be applied in a uniform layer but also allow blending, on the face and part of the neck.

[0006] Similarly, a base, primer, or makeup base is a cosmetic composition that helps to blur skin imperfections and prevents makeup from settling into wrinkles and pores throughout the day. This formulation helps perfect the skin before applying foundation, blush, etc.

[0007] For the purposes of the present invention, a blush or commonly called a “blush” is a cosmetic formulation intended to mimic or reinforce a “pink cheek” appearance.

[0008] Similarly, eyeshadow or commonly called "eye-shadow" refers to cosmetic formulations that can be applied to the eyelid to highlight the eyes by creating color contrasts.

[0009] By makeup remover formulation we mean a makeup remover oil but also a biphasic makeup remover formulation which allows the face to be cleaned of makeup while respecting the skin of its user.

[0010] As stated above, these makeup remover formulations can come in the form of a makeup remover oil made up of oils and various fatty substances.

[0011] They can also be presented in the form of a biphasic formulation comprising an aqueous phase and an oily phase.

[0012] An "alkane" is a saturated hydrocarbon consisting solely of carbon and hydrogen atoms linked together by simple covalent bonds, the general formula of which is CnH2n+2.

[0013] A "linear alkane" is an alkane in which each carbon atom is linked to a maximum of two carbon atoms.

[0014] A "branched alkane" is an alkane in which some carbon atoms are linked to three or even four carbon atoms.

[0015] A Cx alkane is an alkane consisting of x carbon atoms, and the alkane can be linear or branched. For example, dodecane is a C12 alkane.

[0016] Commonly, a "volatile mixture of alkanes" is a mixture of alkanes having a flash point less than or equal to 95°C measured according to the ATSM D93 standard.

[0017] For the purposes of the present invention, the term “volatile mixture of alkanes” means a mixture of alkanes having a flash point less than or equal to 55°C measured according to the ATSM D93 standard.

[0018] The flash point is the flash point measured according to ASTM D93. The unit of the flash point measured according to ASTM D93 is degrees Celsius (°C). It can also be an average of values, each of which is obtained by means of a measurement according to ASTM D93.

[0019] The term "mass percentage" refers to the ratio of the mass of a first compound to the total mass of a mixture of compounds or composition, reduced to a percentage. For example, if 10 grams of a compound y are present in a mixture z having a total mass of 100 grams, then the mass percentage of y in z is 10%.

[0020] A "bio-sourced" compound or organic composition is one in which the organic carbon present in the compound or composition is 100% of plant origin ( 14 C) by radiocarbon analysis according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0021] The "naturalness index" of an organic composition is called the percentage of organic carbon of plant origin ( 14 C) determined by radiocarbon analysis according to one of the following standards ASTM D6866 or EN 16640 or EN 16785-1.

[0022] For the purposes of the present invention, the OECD 301F method makes it possible to assess the biodegradability of a substance by means of a manometric respirometry test.

[0023] Since the appearance of isododecane in cosmetics in the 1990s, its use has expanded considerably in all areas of cosmetics, from skin care products to makeup products such as mascara compositions, long-lasting lipstick, and hair products such as serums or anti-frizz dry oils.

[0024] In some of these products, isododecane can represent up to 60% by mass of the composition of these cosmetic formulas.

[0025] Long-lasting makeup now represents around 25% of the global makeup market: isododecane is a key component because it allows for long-lasting, transfer-free and waterproof performance, while maintaining optimal comfort. This market was developed from this essential ingredient, isododecane, derived from petrochemicals

[0026] However, with limited oil resources and the oil market being fluctuating and polluting, meeting the demand for isododecane or being able to provide at least equivalent properties in cosmetic formulations represents a strategic challenge for the cosmetics industry.

[0027] To address such a challenge, a first approach is to develop a process for producing isododecane that does not use petroleum raw materials.

[0028] Recently, GLOBAL BIOENERGIES disclosed in its application W02020188033, the production of isobutene by a biological process using genetically modified organisms such as modified E. Coli bacteria.

[0029] The resulting isobutene gas is then converted into isododecane by a solvent-phase oligomerization reaction followed by a hydrogenation step according to patent application WO2021228824.

[0030] This reaction, known in the chemical industry, has the disadvantage of forming by-products and offering a low yield, which raises questions about the long-term viability of this approach in terms of volume and cost.

[0031] Nevertheless, more than €100 million was raised by GLOBAL BIOENERGIES for the development of such a process between 2008 and the beginning of 2021, the date of release of the first batch of cosmetic-grade isododecane.

[0032] This long-term economic investment in the production of isododecane from natural raw materials is remarkable.

[0033] Indeed, a second strategy consisting of reducing the quantity of isododecane present in current cosmetic products or even substituting it is a challenge of a completely different magnitude for the cosmetics industry.

[0034] Furthermore, finding a biodegradable substitute for isododecane would be a major advance from an environmental point of view, as mentioned in patent application EP3349720, such a compound being able to represent up to a mass percentage of 60% of the cosmetic composition.

[0035] Research has thus been carried out in order to identify compounds likely to offer a satisfactory alternative to isododecane, these compounds having to have similar volatility characteristics and similar behavior in a formulation, particularly in terms of sensory properties such as the ability to spread on the skin, the sensation to the touch, or even the “non-greasy” character of the film obtained.

[0036] Thus, there remains a need, from an economic and ecological point of view, to have a cosmetic excipient capable of substituting isododecane, in particular as an excipient to be included in cosmetic formulations.

[0037] Surprisingly, it was demonstrated by the Applicant that such an excipient could be obtained.

[0038] This excipient is a volatile mixture of alkanes as previously defined.

[0039] Preferably, this volatile mixture of alkanes is obtained from fatty alcohols by a Guerbet alcohol reaction followed by a dehydration and hydrogenation reaction. This synthetic route advantageously makes it possible to obtain a substitute excipient for isododecane, from raw materials of natural origin according to an industrial process that is economically viable in relation to market needs.

[0040] Moreover, such an excipient is biodegradable according to the OECD 301F method unlike isododecane (CAS 13475-82-6).

[0041] Advantageously, the excipient according to the present invention has a biodegradability of at least 50% according to the OECD 301F method.

[0042] It has also been demonstrated according to the invention that the incorporation of this cosmetic excipient into cosmetic formulations, in particular those of cosmetic compositions applicable to the skin such as bases or primers, foundations or powders, had the effect of providing said cosmetic formulation with remarkable cosmetic qualities in addition to excellent stability of these formulations, such as ease of application, water resistance, good hold, and a more intense and luminous color.

[0043] In addition, the incorporation of this cosmetic excipient can make it possible to obtain cosmetic formulations applicable to the skin which can present a naturalness index greater than 90%.

[0044] The invention relates to a cosmetic composition applicable to the skin, characterized in that it comprises a volatile mixture of alkanes, said volatile mixture of alkanes comprising: a) From 20 to 100% of a fraction A which comprises at least one branched C<10 alkane; b) From 0 to 80% of a fraction B which comprises at least one linear or branched C>10 alkane; and in that said volatile mixture of alkanes has a flash point below 55°C measured according to the ASTM D93 standard and represents a mass percentage greater than or equal to 10% relative to the total mass of the composition.

[0045] The invention also relates to a cosmetic composition applicable to the skin, characterized in that it comprises a volatile mixture of alkanes, said volatile mixture of alkanes comprising: a) From 20 to 100% of a fraction A which comprises at least one branched C<10 alkane; b) From 0 to 80% of a fraction B which comprises at least one linear or branched C>10 alkane; and in that said volatile mixture of alkanes has a flash point below 55°C measured according to the ASTM D93 standard and represents a mass percentage greater than or equal to 25% relative to the total mass of the composition.

[0046] The cosmetic composition applicable to the skin according to the invention is characterized in that it comprises a mass percentage of less than or equal to 15% of isododecane relative to the total mass of the composition.

[0047] The cosmetic composition applicable to the skin according to the invention is characterized in that it comprises a mass percentage of less than or equal to 10% of isododecane relative to the total mass of the composition.

[0048] Preferably, the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises a mass percentage of less than or equal to 5% of isododecane relative to the total mass of the composition.

[0049] Preferably, the cosmetic composition applicable to the skin according to the invention is characterized in that it is free of isododecane.

[0050] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it is free of linear C10 alkanes.

[0051] Conventionally, the cosmetic composition applicable to the skin according to the invention, in particular the foundation and / or base compositions, can be formulated in a fluid or solid form of powder type, loose, compact or cast.

[0052] These compositions may in particular, independently of one another, be presented in an anhydrous form or in the form of an emulsion.

[0053] These emulsions can come in different forms, namely in the form of an oil-in-water emulsion, water-in-oil, but also under certain conditions in the form of a multiple W / O / W (water / oil / water) or O / W / O (oil / water / oil) emulsion combining at least one aqueous phase and one fatty phase.

[0054] Preferably, the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one aqueous phase and one fatty phase.

[0055] The aqueous phase is essentially made up of water and will be developed below.

[0056] The fatty phase contains different types of ingredients selected mainly for their organoleptic properties: - volatile solvents to facilitate application and hold - oils to provide slip and ease of application - waxes, to fix consistency and hardness - fatty substances such as pasty fats or gelling agents to adjust the smoothness and ease of use.

[0057] Generally speaking, the cosmetic composition applicable to the skin according to the invention comprises a pigmentary part.

[0058] Obtaining a cosmetic composition that is satisfactory for application to the skin is achieved by finding a subtle balance between these different ingredients.

[0059] Various additives can be added to these ingredients, providing specific properties: polymers, absorbent powders, stabilizing additives (antioxidants, preservatives, etc.), perfume and active ingredients where applicable.

[0060] The various components of the composition according to the invention are detailed below.

[0061] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one aqueous phase.

[0062] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase consists of water.

[0063] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase comprises water and at least one water-miscible organic solvent.

[0064] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one water-miscible organic solvent is chosen from the group consisting of: lower alcohols such as ethanol, isopropanol, butanol, isoamyl alcohol, glycols such as ethylene glycol, propylene glycol, 1,3-butylene glycol, ketones and short-chain aldehydes in C2 to C4.

[0065] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase has a mass percentage of 1 to 95% relative to the total mass of the composition.

[0066] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase has a mass percentage of 5 to 80% relative to the total mass of the composition.

[0067] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase has a mass percentage of 5 to 60% relative to the total mass of the composition.

[0068] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase has a mass percentage of 1 to 50% relative to the total mass of the composition.

[0069] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase has a mass percentage of 1 to 30% relative to the total mass of the composition.

[0070] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase has a mass percentage of 10 to 40% relative to the total mass of the composition.

[0071] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase has a mass percentage of 1 to 20% relative to the total mass of the composition.

[0072] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one fatty phase.

[0073] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the fatty phase comprises volatile solvents, oils, waxes, fatty substances such as pasty fatty substances or gelling agents.

[0074] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the fatty phase further comprises: polymers, absorbent powders, stabilizing additives (antioxidants, preservatives, etc.), perfume and active ingredients where appropriate.

[0075] Typically, volatile solvents used in the cosmetics industry are volatile silicones or volatile isoparaffins such as isododecane.

[0076] For the purposes of the present invention, the volatile solvent is defined as a “volatile mixture of alkanes”.

[0077] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the flash point of said volatile mixture of alkanes is less than or equal to 50°C.

[0078] Preferably, the cosmetic composition applicable to the skin according to the invention is characterized in that the flash point of said volatile mixture of alkanes is between 45 and 50°C.

[0079] Preferably, the cosmetic composition applicable to the skin according to the invention is characterized in that the flash point of said volatile mixture of alkanes is less than or equal to 45°C.

[0080] Even more preferably, the cosmetic composition applicable to the skin according to the invention is characterized in that the flash point of said volatile mixture of alkanes is between 40 and 45°C.

[0081] Advantageously, the cosmetic composition applicable to the skin according to the invention is characterized in that the flash point of said volatile mixture of alkanes is less than or equal to 40°C.

[0082] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the flash point of said volatile mixture of alkanes is between 35 and 40°C.

[0083] According to one embodiment, the “volatile mixture of alkanes” is a mixture of alkanes free of alkanes whose number of carbon atoms is greater than 16.

[0084] Preferably, the “volatile mixture of alkanes” is a mixture of alkanes free of alkanes having a carbon number greater than 15.

[0085] Preferably, the “volatile mixture of alkanes” is a mixture of alkanes free of alkanes whose number of carbon atoms is greater than 14.

[0086] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that said volatile mixture of alkanes has a naturalness index greater than or equal to 60% carbon 14 ( 14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0087] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that said volatile mixture of alkanes has a naturalness index greater than or equal to 70% carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0088] Preferably, the cosmetic composition applicable to the skin according to the invention is characterized in that said volatile mixture of alkanes has a naturalness index greater than or equal to 75% carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0089] Preferably, the cosmetic composition applicable to the skin according to the invention is characterized in that said volatile mixture of alkanes has a naturalness index greater than or equal to 85% carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0090] Preferably, the cosmetic composition applicable to the skin according to the invention is characterized in that said volatile mixture of alkanes has an index of naturalness greater than or equal to 90% carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0091] Advantageously, the volatile mixture of alkanes present in the composition according to the invention has a naturalness index of 100% carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0092] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that said volatile mixture of alkanes is obtained from raw materials of plant, bacterial or animal origin.

[0093] In a preferred embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that said volatile mixture of alkanes is obtained from raw materials of plant origin.

[0094] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of at least 50% according to the OECD 301F method.

[0095] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of at least 60% according to the OECD 301F method.

[0096] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 50 and 80% according to the OECD 301F method.

[0097] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 50 and 70% according to the OECD 301F method.

[0098] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 50 and 60% according to the OECD 301F method.

[0099] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 60 and 70% according to the OECD 301F method. [000100] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 70 and 80% according to the OECD 301F method. [000101] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is at least 10% relative to the total mass of the composition. [000102] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is at least 25% relative to the total mass of the composition. [000103] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is at least 30% relative to the total mass of the composition. [000104] Preferably, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is at least 40% and even more preferably at least 50% relative to the total mass of the composition. [000105] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 10 and 80% relative to the total mass of the composition. [000106] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 25 and 80% relative to the total mass of the composition. [000107] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 30 and 80% relative to the total mass of the composition. [000108] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 40 and 80% relative to the total mass of the composition. [000109] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 30 and 60% relative to the total mass of the composition. [000110] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 25 and 50% relative to the total mass of the composition. [000111] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 10 and 30% relative to the total mass of the composition. [000112] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said mixture volatile alkanes is between 40 and 60% relative to the total mass of the composition. [000113] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 60 and 80% relative to the total mass of the composition. [000114] Fraction A of said volatile mixture of alkanes is chosen from the group comprising branched Cs, branched C9, branched Cio alkanes, and mixtures thereof. [000115] Fraction A of said volatile mixture of alkanes comprises at least one branched C<10 alkane. [000116] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is at least one branched Cs alkane. [000117] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is chosen from the group comprising branched C9 alkanes, branched Cio alkanes, and mixtures thereof. [000118] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is a branched C9 alkane. [000119] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is at least one branched C9 alkane chosen from the group consisting of trimethylhexanes such as for example 2,2,4-trimethylhexane (CAS 16747-26-5), 2,2,5-trimethylhexane (CAS 3522-94-9), 2,2,3-trimethylhexane (CAS 16747-25-4), 2,4,4-trimethylhexane (CAS 16747-30-1), 2,3,3-trimethylhexane (CAS 16747-28-1), 3,3,4-trimethylhexane (CAS 16747-31-2), 2,3,5-trimethylhexane (CAS 1069-53-0), 2,3,4-trimethylhexane (CAS 921-47-1). [000120] For the purposes of the present invention, the term “trimethylhexanes” means all C 6 alkanes branched by three methyl groups. [000121] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is a trimethylhexane. [000122] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,2,4-trimethylhexane (CAS 16747-26-5). [000123] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,3,5-trimethylhexane (CAS 1069-53-0). [000124] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,3,4 trimethylhexane (CAS 921-47-1). [000125] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is a branched Cio alkane. [000126] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is a branched Cio alkane chosen from the group consisting of: 2-methylnonane (CAS 871-83-0), 4-methylnonane (CAS 17301-94-9), 3-methylnonane (CAS 5911-04-6), 3-ethyloctane (CAS 5881-17-4), 2,2-dimethyloctane (CAS 15869-87-1), 2,3-dimethyloctane (CAS 7146-60-3), 2,5-Dimethyloctane (CAS 15869-89-3), 3,5-Dimethyloctane (CAS 15869-93-9), 4-Propylheptane (CAS 3178-29-8), 3-Ethyl-2-methylheptane (CAS 14676-29-0), 2,3,6-Trimethylheptane (CAS 4032-93-3), 3,3,4-Trimethylheptane (CAS 20278-87-9), 2,3,4-Trimethylheptane (CAS 52896-95-4), 2,2,4-Trimethylheptane (CAS: 14720-74-2), 3,3-Diethylhexane (CAS 17302-02-2), 2,2,3,3-tetramethylhexane (CAS 13475-81-5), 3-ethyl-2,2,3-trimethylpentane (CAS 52897-17-3), 2,2,3-trimethylheptane (CAS 52896-92-1), 2,3,5-trimethylheptane (CAS 20278-85-7), 3,3-diethylhexane (CAS 17302-02-2), 2,2,3,3-tetramethylhexane (CAS 13475-81-5), 3-ethyl-2,2,3-trimethylpentane (CAS 52897-17-3), 3,3,5-trimethylheptane (CAS 7154-80-5), 2,5,5-trimethylheptane (CAS 1189-99-7), 2,4,6-trimethylheptane (CAS 2613-61-8), 3,4,5-trimethylheptane (CAS 20278-89-1), 2,2,6-trimethylheptane (CAS 1190-83-6), 2,4,5-trimethylheptane (CAS 20278-84-6), 2,4,4-trimethylheptane (CAS 4032-92-2), 2,3,3-trimethylheptane (CAS 52896-93-2), 3,4,4-trimethylheptane (CAS 20278-88-0), and mixtures thereof. [000127] For the purposes of the present invention, the term “trimethylheptanes” means all C? alkanes branched by three methyl groups. [000128] In one embodiment, the cosmetic composition applicable to the skin is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is a branched Cio alkane chosen from the group consisting of trimethylheptanes such as, for example, 2,2,3-trimethylheptane (CAS 52896-92-1), 2,3,5-trimethylheptane (CAS 20278-85-7), 2,3,6-trimethylheptane (CAS 4032-93-3), 3,3,4-trimethylheptane (CAS 20278-87-9), 2,3,4-trimethylheptane (CAS 52896-95-4), 2,2,4-trimethylheptane (CAS: 14720-74-2, 3,3,5-trimethylheptane (CAS 7154-80-5), 2,5,5-trimethylheptane (CAS 1189-99-7), 2,4,6-trimethylheptane (CAS 2613-61-8), 3,4,5-trimethylheptane (CAS 20278-89-1), 2,2,6-trimethylheptane (CAS 1190-83-6), 2,4,5-trimethylheptane (CAS 20278-84-6), 2,4,4-trimethylheptane (CAS 4032-92-2), 2,3,3-trimethylheptane (CAS 52896-93-2), 3,4,4-trimethylheptane (CAS 20278-88-0), and mixtures thereof. [000129] The invention also relates to a cosmetic composition applicable to the skin comprising a volatile mixture of alkanes as previously defined, characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is a trimethylheptane. [000130] The invention also relates to a cosmetic composition applicable to the skin comprising a volatile mixture of alkanes as previously defined, characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,3,6-trimethylheptane (CAS 4032-93-3). [000131] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,3,5-trimethylheptane (CAS 20278-85-7). [000132] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,2,3-trimethylheptane (CAS 52896-92-1). [000133] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 3,3,4-trimethylheptane (CAS 20278-87-9). [000134] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,3,4-trimethylheptane (CAS 52896-95-4). [000135] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,2,4-trimethylheptane (CAS: 14720-74-2). [000136] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,2,3-trimethylheptane (CAS 52896-92-1). [000137] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 3,3,5-trimethylheptane (CAS 7154-80-5). [000138] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,5,5-trimethylheptane (CAS 1189-99-7). [000139] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,4,6-trimethylheptane (CAS 2613-61-8). [000140] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 3,4,5-trimethylheptane (CAS 20278-89-1). [000141] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,2,6-trimethylheptane (CAS 1190-83-6). [000142] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,4,5-trimethylheptane (CAS 20278-84-6). [000143] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,4,4-trimethylheptane (CAS 4032-92-2). [000144] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,3,3-trimethylheptane (CAS 52896-93-2). [000145] The invention also relates to a cosmetic composition applicable to the skin comprising a volatile mixture of alkanes as previously defined, characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is a trimethylheptane and a trimethylhexane. [000146] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is at least 20% relative to the total mass of said volatile mixture of alkanes. [000147] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is greater than 50% relative to the total mass of said volatile mixture of alkanes. [000148] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 20% and 100% relative to the total mass of said volatile mixture of alkanes. [000149] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 20% and 70% relative to the total mass of said volatile mixture of alkanes. [000150] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 50% and 100% relative to the total mass of said volatile mixture of alkanes. [000151] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 51% and 100% relative to the total mass of said volatile mixture of alkanes. [000152] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes. [000153] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 40% and 70% relative to the total mass of said volatile mixture of alkanes. [000154] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 70% and 100% relative to the total mass of said volatile mixture of alkanes. [000155] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes. [000156] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes. [000157] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes. [000158] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the fraction A of the volatile mixture of alkanes is between 70% and 90% relative to the total mass of said volatile mixture of alkanes. [000159] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 80% and 100% relative to the total mass of said volatile mixture of alkanes. [000160] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is at least 20% relative to the total mass of said volatile mixture of alkanes. [000161] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is greater than 50% relative to the total mass of said volatile mixture of alkanes. [000162] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 20% and 100% relative to the total mass of said volatile mixture of alkanes. [000163] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 20% and 70% relative to the total mass of said volatile mixture of alkanes. [000164] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 50% and 100% relative to the total mass of said volatile mixture of alkanes. [000165] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 51% and 100% relative to the total mass of said volatile mixture of alkanes. [000166] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes. [000167] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 40% and 70% relative to the total mass of said volatile mixture of alkanes. [000168] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 70% and 100% relative to the total mass of said volatile mixture of alkanes. [000169] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes. [000170] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes. [000171] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes. [000172] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 70% and 90% relative to the total mass of said volatile mixture of alkanes. [000173] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 80% and 100% relative to the total mass of said volatile mixture of alkanes. [000174] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is at least 20% relative to the total mass of said volatile mixture of alkanes. [000175] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 20% and 100% relative to the total mass of said volatile mixture of alkanes. [000176] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 20% and 70% relative to the total mass of said volatile mixture of alkanes. [000177] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 50% and 100% relative to the total mass of said volatile mixture of alkanes. [000178] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 51% and 100% relative to the total mass of said volatile mixture of alkanes. [000179] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes. [000180] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 40% and 70% relative to the total mass of said volatile mixture of alkanes. [000181] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 70% and 100% relative to the total mass of said volatile mixture of alkanes. [000182] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes. [000183] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes. [000184] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes. [000185] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 70% and 90% relative to the total mass of said volatile mixture of alkanes. [000186] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 80% and 100% relative to the total mass of said volatile mixture of alkanes. [000187] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C<10 alkane of said volatile mixture of alkanes is at least 5% relative to the total mass of said volatile mixture of alkanes. [000188] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C<10 alkane of said volatile mixture of alkanes is at least 10% relative to the total mass of said volatile mixture of alkanes. [000189] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 5% and 20% relative to the total mass of said volatile mixture of alkanes. [000190] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 5% and 15% relative to the total mass of said volatile mixture of alkanes. [000191] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of at least one branched C<10 alkane of said volatile mixture of alkanes is between 10% and 20% relative to the total mass of said volatile mixture of alkanes. [000192] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 10% and 15% relative to the total mass of said volatile mixture of alkanes. [000193] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 15% and 20% relative to the total mass of said volatile mixture of alkanes. [000194] Fraction B of said volatile mixture of alkanes comprises at least one linear or branched C>10 alkane. [000195] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is chosen from the group comprising Cn, C12, C13, Cm, C15, C16 alkanes and their mixtures. [000196] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is chosen from the group comprising linear Cn, C12, C13, Cm, C15 alkanes, and mixtures thereof. [000197] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is chosen from the group consisting of undecane (CAS 1120-21-4), n-dodecane (CAS 112-40-3), n-tridecane (CAS 629-50-5), n-tetradecane (CAS 629-59-4), n-pentadecane (CAS 629-62-9) and mixtures thereof. [000198] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is undecane (CAS 1120-21-4). [000199] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is n-dodecane (CAS 112-40-3). [000200] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is n-tridecane (CAS 629-50-5). [000201] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is the undecane / tridecane mixture marketed under the name CETIOL ULTIMATE by BASF. [000202] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is n-tetradecane (CAS 629-59-4). [000203] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is chosen from the group comprising branched C12, branched C13, branched C, branched C15, branched C16 alkanes, and mixtures thereof. [000204] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched Cn alkane. [000205] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C12 alkane. [000206] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C12 alkane chosen from the group consisting of: 3-methylundecane (CAS 1002-43-3), 4-methylundecane (CAS 2980-69-0), 5-methylundecane (CAS 1632-70-8), 6-methylundecane (CAS 17302-33-9), 2,4-dimethyldecane (CAS 2801-84-5), 4,4-dimethyldecane (CAS 17312-39-9), 3,5-dimethyldecane (17312-48-0), 2,5-dimethyldecane (CAS 17312-50-4), 2,3-dimethyldecane (17312-44-6), 3,3-dimethyldecane (17302-38-4), 3,7-Dimethyldecane (CAS 17312-54-8), 3,4,6-Trimethylnonane (CAS 62184-24-1), 3,5,6-Trimethylnonane (CAS 62184-26-3), 3,5,7-Trimethylnonane (CAS 62184-27-4), 2,5,7-Trimethylnonane (CAS 62184-14-9), 2,5,6-Trimethylnonane (CAS 62184-13-8), 2,5,7-Trimethylnonane (CAS 62184-14-9), 2,5,8-Trimethylnonane (CAS 49557-09-7), 3,3,4,5-Tetramethyloctane (CAS 62185-21-1), the 2,3,4,5-tetramethyloctane (CAS 62199-27-3), 2,2,4,5-tetramethyloctane (CAS 62183-80-6), 2,2,5,7-tetramethyloctane (CAS 62199-19-3), 2,3,4,7-tetramethyloctane (CAS 62199-29-5), 2,4,4,7-tetramethyloctane (CAS 35866-96-7), 3-ethyl-4-methylnonane (CAS 62184-45-6), 3-ethyl-4,5-dimethyloctane (CAS 62183-72-6), 2,5-dimethyl-6-ethyloctane (CAS 62183-50-0), 2,2,4,6,6-pentamethylheptane (CAS 13475-82-6) and mixtures thereof. [000207] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least one isododecane. [000208] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is 2,2,4,6,6-pentamethylheptane (CAS 13475-82-6). [000209] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C13 alkane. [000210] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C alkane. [000211] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C15 alkane. [000212] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least the hemisqualane marketed under the name NEOSSANCE by AMYRIS. [000213] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least one C13-C15 mixture marketed under the name EMOGREEN L15 by SEPPIC. [000214] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C16 alkane. [000215] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least one isohexadecane. [000216] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 0 and 80% relative to the total mass of said volatile mixture of alkanes. [000217] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 0 and 50% relative to the total mass of said volatile mixture of alkanes. [000218] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 0 and 30% relative to the total mass of said volatile mixture of alkanes. [000219] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is at least 30% relative to the total mass of said volatile mixture of alkanes. [000220] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 30% and 80% relative to the total mass of said volatile mixture of alkanes. [000221] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes. [000222] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 50% and 80% relative to the total mass of said volatile mixture of alkanes. [000223] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes. [000224] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes. [000225] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes. [000226] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 60% and 80% relative to the total mass of said volatile mixture of alkanes. [000227] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the fraction B of the volatile mixture of alkanes is between 0% and 10% relative to the total mass of said volatile mixture of alkanes. [000228] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 10% and 20% relative to the total mass of said volatile mixture of alkanes. [000229] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 40% and 50% relative to the total mass of said volatile mixture of alkanes. [000230] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 60% and 70% relative to the total mass of said volatile mixture of alkanes. [000231] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 70% and 80% relative to the total mass of said volatile mixture of alkanes. [000232] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0 and 80% relative to the total mass of said volatile mixture of alkanes. [000233] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0 and 50% relative to the total mass of said volatile mixture of alkanes. [000234] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0 and 30% relative to the total mass of said volatile mixture of alkanes. [000235] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least 30% relative to the total mass of said volatile mixture of alkanes. [000236] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least 50% relative to the total mass of said volatile mixture of alkanes. [000237] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 30% and 80% relative to the total mass of said volatile mixture of alkanes. [000238] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes. [000239] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 50% and 80% relative to the total mass of said volatile mixture of alkanes. [000240] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0% and 20% relative to the total mass of said volatile mixture of alkanes. [000241] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 10 and 30% relative to the total mass of said volatile mixture of alkanes. [000242] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes. [000243] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes. [000244] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes. [000245] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 60% and 80% relative to the total mass of said volatile mixture of alkanes. [000246] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least a linear or branched C>10 alkane of said volatile mixture of alkanes is between 0% and 10% relative to the total mass of said volatile mixture of alkanes. [000247] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 10% and 20% relative to the total mass of said volatile mixture of alkanes. [000248] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 20% and 30% relative to the total mass of said volatile mixture of alkanes. [000249] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 40% and 50% relative to the total mass of said volatile mixture of alkanes. [000250] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 60% and 70% relative to the total mass of said volatile mixture of alkanes. [000251] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 70% and 80% relative to the total mass of said volatile mixture of alkanes. [000252] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0% and 80% relative to the total mass of said volatile mixture of alkanes. [000253] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0% and 50% relative to the total mass of said volatile mixture of alkanes. [000254] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0% and 30% relative to the total mass of said volatile mixture of alkanes. [000255] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least 10% relative to the total mass of said volatile mixture of alkanes. [000256] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least 30% relative to the total mass of said volatile mixture of alkanes. [000257] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 10% and 80% relative to the total mass of said volatile mixture of alkanes. [000258] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 30% and 80% relative to the total mass of said volatile mixture of alkanes. [000259] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes. [000260] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 50% and 80% relative to the total mass of said volatile mixture of alkanes. [000261] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes. [000262] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes. [000263] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes. [000264] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 60% and 80% relative to the total mass of said volatile mixture of alkanes. [000265] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0% and 10% relative to the total mass of said volatile mixture of alkanes. [000266] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 10% and 20% relative to the total mass of said volatile mixture of alkanes. [000267] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 20% and 30% relative to the total mass of said volatile mixture of alkanes. [000268] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 40% and 50% relative to the total mass of said volatile mixture of alkanes. [000269] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 50% and 60% relative to the total mass of said volatile mixture of alkanes. [000270] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 60% and 70% relative to the total mass of said volatile mixture of alkanes. [000271] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 70% and 80% relative to the total mass of said volatile mixture of alkanes. [000272] The invention also relates to a cosmetic composition applicable to the skin comprising a volatile mixture of alkanes as previously defined, characterized in that the volatile mixture of alkanes comprises: - 20 to 100% trimethylheptane (CAS 4032-93-3) - 0 to 80% n-dodecane (CAS 112-40-3). [000273] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: - 20 to 100% trimethylheptane (CAS 4032-93-3) - 0 to 80% n-dodecane (CAS 112-40-3). [000274] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises: - 20 to 70% trimethylheptane (CAS 4032-93-3) - 30 to 80% n-dodecane (CAS 112-40-3). [000275] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: - 20 to 70% trimethylheptane (CAS 4032-93-3) - 30 to 80% n-dodecane (CAS 112-40-3). [000276] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises: - 50 to 100% trimethylheptane (CAS 4032-93-3) - 0 to 50% n-dodecane (CAS 112-40-3). [000277] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: - 50 to 70% trimethylheptane (CAS 4032-93-3) - 0 to 50% n-dodecane (CAS 112-40-3). [000278] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises: - 20 to 100% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 0 to 80% n-dodecane (CAS 112-40-3). [000279] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: - 20 to 100% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 0 to 80% n-dodecane (CAS 112-40-3). [000280] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises: - 20 to 70% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 30 to 80% n-dodecane (CAS 112-40-3). [000281] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: - 20 to 70% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 30 to 80% n-dodecane (CAS 112-40-3). [000282] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -30% 2,3,6-trimethylheptane (CAS 4032-93-3) -70% n-dodecane (CAS 112-40-3). [000283] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -35% 2,3,6-trimethylheptane (CAS 4032-93-3) -65% n-dodecane (CAS 112-40-3). [000284] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -40% 2,3,6-trimethylheptane (CAS 4032-93-3) -60% n-dodecane (CAS 112-40-3). [000285] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -45% 2,3,6-trimethylheptane (CAS 4032-93-3) -55% n-dodecane (CAS 112-40-3). [000286] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -60% 2,3,6-trimethylheptane (CAS 4032-93-3) -40% n-dodecane (CAS 112-40-3). [000287] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -70% 2,3,6-trimethylheptane (CAS 4032-93-3) -30% n-dodecane (CAS 112-40-3). [000288] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -90% 2,3,6-trimethylheptane (CAS 4032-93-3) -10% n-dodecane (CAS 112-40-3). [000289] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -100% 2,3,6-trimethylheptane (CAS 4032-93-3). [000290] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises: - 5 to 15% trimethylhexane - 20 to 95% trimethylheptane - 0 to 75% n-dodecane (CAS 112-40-3). [000291] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: - 5 to 15% trimethylhexane - 20 to 95% trimethylheptane - 0 to 75% n-dodecane (CAS 112-40-3). [000292] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises: - 5 to 10% of 2,2,4-trimethylhexane - 20 to 60% of 2,3,6-trimethylheptane - 0 to 75% n-dodecane (CAS 112-40-3). [000293] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: - 5 to 10% of 2,2,4-trimethylhexane - 20 to 60% of 2,3,6-trimethylheptane - 0 to 75% n-dodecane (CAS 112-40-3). [000294] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises: - 5 to 15% of 2,2,4-trimethylhexane (CAS 16747-26-5) - 20 to 95% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 0 to 75% n-dodecane (CAS 112-40-3). [000295] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: - 5 to 15% of 2,2,4-trimethylhexane (CAS 16747-26-5) - 20 to 95% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 0 to 75% n-dodecane (CAS 112-40-3). [000296] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises: - 5 to 10% of 2,2,4-trimethylhexane (CAS 16747-26-5) - 20 to 60% of 2,3,6-trimethylheptane (CAS 4032-93-3). - 0 to 75% n-dodecane (CAS 112-40-3). [000297] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: - 5 to 10% of 2,2,4-trimethylhexane (CAS 16747-26-5) - 20 to 60% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 0 to 75% n-dodecane (CAS 112-40-3). [000298] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -5% 2,2,4-trimethylhexane (CAS 16747-26-5) -20% 2,3,6-trimethylheptane (CAS 4032-93-3) -75% n-dodecane (CAS 112-40-3). [000299] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -5% 2,2,4-trimethylhexane (CAS 16747-26-5) -30% 2,3,6-trimethylheptane (CAS 4032-93-3) -65% n-dodecane (CAS 112-40-3). [000300] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -5% 2,2,4-trimethylhexane (CAS 16747-26-5) -35% 2,3,6-trimethylheptane (CAS 4032-93-3) -60% n-dodecane (CAS 112-40-3). [000301] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -5% 2,2,4-trimethylhexane (CAS 16747-26-5) -45% 2,3,6-trimethylheptane (CAS 4032-93-3) -50% n-dodecane (CAS 112-40-3). [000302] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -10% 2,2,4-trimethylhexane (CAS 16747-26-5) -20% 2,3,6-trimethylheptane (CAS 4032-93-3) -70% n-dodecane (CAS 112-40-3). [000303] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -10% 2,2,4-trimethylhexane (CAS 16747-26-5) -30% 2,3,6-trimethylheptane (CAS 4032-93-3) -60% n-dodecane (CAS 112-40-3). [000304] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -10% 2,2,4-trimethylhexane (CAS 16747-26-5) -35% 2,3,6-trimethylheptane (CAS 4032-93-3) -55% n-dodecane (CAS 112-40-3). [000305] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -15% 2,2,4-trimethylhexane (CAS 16747-26-5) -20% 2,3,6-trimethylheptane (CAS 4032-93-3) -65% n-dodecane (CAS 112-40-3). [000306] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -15% 2,2,4-trimethylhexane (CAS 16747-26-5) -25% 2,3,6-trimethylheptane (CAS 4032-93-3) -60% n-dodecane (CAS 112-40-3). [000307] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of: -15% 2,2,4-trimethylhexane (CAS 16747-26-5) -30% 2,3,6-trimethylheptane (CAS 4032-93-3) -55% n-dodecane (CAS 112-40-3). [000308] In one embodiment, the cosmetic composition applicable to the skin according to the invention as defined above is characterized in that the volatile mixture of alkanes comprises: a) from 70 to 99% by mass of the volatile mixture of alkanes composed of a fraction A and a fraction B as defined above b) from 1 to 30% by mass of a fraction C containing at least one linear C<10 alkane. [000309] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises at least one linear C<10 alkane chosen from the group consisting of n-octane, n-nonane and n-decane. [000310] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear C<10 alkane present in the volatile mixture of alkanes is n-decane. [000311] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one linear C<10 alkane is at least 1% relative to the total mass of said volatile mixture of alkanes. [000312] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least a linear C<10 alkane is between 1 and 20% relative to the total mass of said volatile mixture of alkanes. [000313] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one linear C<10 alkane is between 10 and 30% relative to the total mass of said volatile mixture of alkanes. [000314] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one linear C<10 alkane is between 5 and 15% relative to the total mass of said volatile mixture of alkanes. [000315] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one linear C<10 alkane is between 10 and 20% relative to the total mass of said volatile mixture of alkanes. [000316] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one linear C<10 alkane is between 20 and 30% relative to the total mass of said volatile mixture of alkanes. [000317] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a flash point lower than 55°C according to the ASTM D93 standard. [000318] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a flash point of between 45 and 54°C. [000319] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a flash point of between 45 and 50°C. [000320] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a flash point of between 50 and 54°C. [000321] In one embodiment, the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a percentage greater than or equal to 50% of carbon 14 ( 14 C) according to one of the following methods ASTM D6866, EM 16640 or EN 16785-1. [000322] In one embodiment, the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a percentage greater than or equal to 60% in carbon 14 ( 14 C) according to one of the following methods ASTM D6866, EM 16640 or EN 16785-1. [000323] In one embodiment, the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a percentage greater than or equal to 75% of carbon 14 ( 14 C) according to one of the following methods ASTM D6866, EM 16640 or EN 16785-1. [000324] In one embodiment, the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a percentage greater than or equal to 85% of carbon 14 ( 14 C) according to one of the following methods ASTM D6866, EM 16640 or EN 16785-1. In one embodiment, the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a percentage greater than or equal to 90% of carbon 14 ( 14 C) according to one of the following methods ASTM D6866, EM 16640 or EN 16785-1. [000325] In the context of the present application, the cosmetic composition applicable to the skin is characterized in that it comprises at least one non-volatile oil. [000326] For the purposes of the present invention, the term “non-volatile oil” means an oil having a flash point above 110°C measured according to the ATSM D93 standard. [000327] These oils can be of vegetable, mineral or synthetic origin. [000328] These non-volatile oils can be hydrocarbon, silicone, fluorinated or fluorosilicone oils. [000329] For the purposes of the present invention, the term “hydrocarbon oil” means an oil essentially consisting of carbon atoms, hydrogen atoms and possibly oxygen and / or nitrogen atoms. [000330] Among these hydrocarbon oils, mention may be made of linear or branched alkanes of mineral or synthetic origin such as linear or branched alkanes of 17 to 40 carbon atoms, (poly)esters and (poly)ethers, and in particular (poly)esters of C2-C24 acids (preferably C6-C20), triglycerides of C6-C20 fatty acids, vegetable oils, di-alkyl carbonates, branched and / or unsaturated fatty acids, branched and / or unsaturated fatty alcohols. [000331] Concerning non-volatile silicone oils, they are notably chosen from the group comprising phenylated silicone oils, non-volatile polydimethylsiloxanes, or derivatives of non-volatile polydimethylsiloxanes and their mixtures. [000332] In a particularly preferred embodiment of the invention, the cosmetic composition applicable to the skin according to the invention is characterized in that the non-volatile oil is chosen from the group consisting of non-volatile linear or branched alkanes. [000333] Preferably, the cosmetic composition applicable to the skin according to the invention is characterized in that the non-volatile oil is chosen from the group consisting of non-volatile linear or branched alkanes. [000334] Preferably, the cosmetic composition applicable to the skin according to the invention is characterized in that the non-volatile linear or branched alkanes are chosen from the group consisting of linear or branched alkanes of 17 to 40 carbon atoms. [000335] The non-volatile oils used in the context of this invention are of plant origin. [000336] In a preferred embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the non-volatile oil is a vegetable hydrocarbon oil. [000337] The vegetable hydrocarbon oils are in particular chosen from the group comprising wheat germ, sunflower, grape seed, sesame, coconut, apricot, castor, corn, avocado, soybean, shea, olive, sweet almond, cotton, palm, macadamia, rapeseed, jojoba, hazelnut, poppy, alfalfa, pumpkin, blackcurrant, squash, evening primrose, barley oils, and mixtures thereof. [000338] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the non-volatile oil is at least 5% relative to the total mass of the composition. [000339] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the non-volatile oil is at least 10% relative to the total mass of the composition. [000340] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the non-volatile oil is between 5% and 25% relative to the total mass of the composition. [000341] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the non-volatile oil is between 5% and 15% relative to the total mass of the composition. [000342] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the non-volatile oil is between 10% and 25% relative to the total mass of the composition. [000343] For the purposes of the present invention, the term “shiny oil” means an oil having intrinsic shine properties. “Shiny oils” are frequently used in cosmetics to guarantee a “shiny effect” when applying cosmetic compositions to keratin materials for example. [000344] In the context of the present application, the cosmetic composition applicable to the skin is characterized in that it comprises at least one shiny oil. [000345] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the shiny oil is a non-volatile oil. [000346] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the shiny oil is chosen from the group comprising: - polymers such as: polybutylenes, in particular POLYBUTENE® marketed or manufactured by the company ATAMAN, hydrogenated polyisobutylenes, polydecenes and hydrogenated polydecenes, polyfarnesenes, vinylpyrrolidone copolymers, in particular the vinylpyrrolidone / eicosene copolymer, ANTARON V 220® marketed or manufactured by the company ISP. - esters such as linear fatty acid esters having a total number of carbon atoms greater than 30, aromatic esters, fatty alcohol esters or branched fatty acid esters having 20 to 30 carbon atoms. - ester copolymers such as: dimer dilinoleyl dimer dilinoleate (LUSPLAN DD-DA5® and LUSPLAN DD-DA7®), di li noleic acid / butanediol copolymer (VISCOPLAST 14436H®), dilinoleic acid / propanediol copolymer and their mixtures. [000347] Preferably, the glossy oil used in the context of the present invention is of plant origin. [000348] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the shiny oil is at least 2% relative to the total mass of the composition. [000349] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the shiny oil is at least 5% relative to the total mass of the composition. [000350] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the shiny oil is between 2 and 20% relative to the total mass of the composition. [000351] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the shiny oil is between 5 and 15% relative to the total mass of the composition. [000352] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the shiny oil is between 10 and 20% relative to the total mass of the composition. [000353] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the shiny oil is between 2 and 10% relative to the total mass of the composition. [000354] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the shiny oil is between 5 and 10% relative to the total mass of the composition. [000355] These ingredients play an important role in the formulation of compositions applicable to the skin because they allow the formulation to be balanced in terms of smoothness in use. [000356] For the purposes of the present invention, the term "pasty fatty body" means a lipophilic fatty compound with a reversible solid / liquid state change, having at room temperature (25°C) a liquid fraction and a solid fraction. [000357] In other words, the melting temperature of the pasty fatty substance is less than or equal to 25°C. [000358] In the context of the present application, the cosmetic composition applicable to the skin is characterized in that it further comprises at least one pasty fatty substance. [000359] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the pasty fatty substance is chosen from the group comprising synthetic pasty fatty substances, animal pasty fatty substances, vegetable pasty fatty substances and mixtures thereof. [000360] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the synthetic pasty fatty substance is chosen from the group comprising: polyol ethers, petroleum jelly, vinyl polymers, pentaerythritol esters, polyesters and their mixtures. [000361] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the animal pasty fatty substance is lanolin. [000362] Preferably, the cosmetic composition applicable to the skin according to the invention is characterized in that the pasty fatty substance is a vegetable pasty fatty substance. [000363] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the vegetable pasty fatty substance is chosen from the group comprising: vegetable butters (avocado butter, shea butter), fatty acid triglycerides and their derivatives, and their mixtures. [000364] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the pasty fatty substance is between 0 and 20% relative to the total mass of the composition. [000365] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the pasty fatty substance is between 0 and 15% relative to the total mass of the composition. [000366] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the pasty fatty substance is between 0 and 10% relative to the total mass of the composition. [000367] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the pasty fatty substance is between 0 and 5% relative to the total mass of the composition. [000368] For the purposes of the present invention, the term gelling agent means compounds which constitute excellent texturizing agents for balancing formulations in terms of smoothness and stickiness. [000369] Furthermore, certain glossy oils such as VISCOPLAST 14436H®, and the compounds marketed under the name LUSPLAN DD-DA5® and LUSPLAN DD-DA7® can also be used as gelling agents. [000370] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one gelling agent. [000371] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is chosen from the group comprising: organic gelling agents, mineral gelling agents, polymeric gelling agents, and mixtures thereof. [000372] Preferably, the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is of plant origin. [000373] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the organic gelling agent is chosen from the group comprising: ethylcellulose and its derivatives, resins derived from rosin, dextrin esters, fatty acid esters, and mixtures thereof. [000374] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mineral gelling agent is chosen from the group comprising: hectorite and its derivatives, pyrogenic silica and its derivatives, and mixtures thereof. [000375] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the polymeric gelling agent is chosen from the group comprising: organopolysiloxanes and their derivatives, dimethicone copolymers and their derivatives, polystyrene / polyisoprene copolymers, polystyrene / polybutadiene copolymers, polystyrene / copoly(ethylene-propylene) copolymers, polystyrene / copoly(ethylene-butylene) copolymers, blends of copolymers in isododecane such as ethylene / propylene copolymer or butylene / ethylene / styrene copolymer, polyesters and their derivatives, polyamide resins, and blends thereof. [000376] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is dextrin palmitate or one of its derivatives. [000377] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is a modified hectorite of the BENTONE GEL ISD V® type or one of its equivalents. [000378] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is a modified hectorite of the VEGELIGHT BENTONE SILK SB® type or one of its equivalents. [000379] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is a modified hectorite of the disteardimonium hectorite type associated with triethyl citrate and a volatile mixture of alkanes defined according to the present invention. [000380] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is a mixture of copolymer in isododecane such as ethylene / propylene copolymer. [000381] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is the combination of a dimethicone polymer and a mixture of alkanes marketed under the name VEGELIGHT SILK SI 118 ® by BIOSYNTHIS, or one of its equivalents. [000382] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is at least 5% relative to the total mass of the composition. [000383] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is at least 15% relative to the total mass of the composition. [000384] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is between 5% and 30% relative to the total mass of the composition. [000385] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is between 5% and 20% relative to the total mass of the composition. [000386] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is between 15% and 30% relative to the total mass of the composition. [000387] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is between 5% and 15% relative to the total mass of the composition. [000388] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is between 15% and 25% relative to the total mass of the composition. [000389] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is between 20% and 30% relative to the total mass of the composition. [000390] For the purposes of the present invention, the term film-forming polymer means a polymer capable of forming a macroscopically continuous film, in particular on the skin within the scope of our invention. [000391] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one film-forming polymer. [000392] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the film-forming polymer is chosen from the group comprising: acrylic polymers, polyurethanes, polyesters, polyamides, silicone polymers. [000393] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the film-forming polymer is trimethylsilloxysilicate marketed under the name TMS 803. [000394] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the film-forming polymer is at least 1% relative to the total mass of the composition. [000395] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the film-forming polymer is at least 10% relative to the total mass of the composition. [000396] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the film-forming polymer is between 1% and 25% relative to the total mass of the composition. [000397] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the film-forming polymer is between 10% and 25% relative to the total mass of the composition. [000398] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the film-forming polymer is between 1% and 10% relative to the total mass of the composition. [000399] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the film-forming polymer is between 10% and 20% relative to the total mass of the composition. [000400] Waxes play an important role in the design of compositions applicable to the skin because they influence certain essential criteria such as the texture, appearance and / or solidity of the product. [000401] In the context of the present application, the term "wax" means a lipophilic compound having a reversible solid / liquid state change. In other words, the compound is solid at room temperature (at 25°C) and has a melting point greater than or equal to 30°C. [000402] Preferably, within the meaning of the present invention, the waxes used have a melting point greater than or equal to 50°C. [000403] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one wax. [000404] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the wax is a synthetic wax, a mineral wax, a vegetable wax or an animal wax. [000405] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the wax is a mineral wax or a synthetic wax chosen from the group comprising: microcrystalline waxes, paraffins, ozokerite, polyethylene waxes, silicone waxes, fluorinated waxes. [000406] By "vegetable wax" is meant a composition comprising at least one partially or completely hydrogenated oil. These vegetable waxes may comprise esters of fatty acids and fatty alcohols, and may further comprise fatty acids, free fatty alcohols, long-chain linear alkanes and / or unsaponifiables. [000407] Preferably, within the meaning of the present invention, the waxes used are vegetable waxes. [000408] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the wax is a vegetable or animal wax chosen from the group comprising: lanolin wax, rice bran wax, carnauba wax, candelilla wax, berry wax, beeswax, sunflower wax, mimosa wax, jojoba wax, castor wax, olive wax. [000409] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the wax is at least 2% relative to the total mass of the composition. [000410] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the wax is at least 5% relative to the total mass of the composition. [000411] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the wax is between 2 and 20% relative to the total mass of the composition. [000412] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the wax is between 5 and 15% relative to the total mass of the composition. [000413] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the wax is between 2 and 10% relative to the total mass of the composition. [000414] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the wax is between 5 and 10% relative to the total mass of the composition. [000415] For the purposes of the present invention, the term "surfactant" means a compound which modifies the surface tension between two surfaces, phases. Generally speaking, these compounds are amphiphilic molecules and make it possible to solubilize two immiscible phases of a composition. [000416] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one surfactant. [000417] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one surfactant is chosen from the group comprising non-ionic, anionic and amphoteric surfactants. [000418] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one surfactant is a non-ionic surfactant. [000419] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the non-ionic surfactant is chosen from the group consisting of: polyoxyalkylene alkyl ethers, glycerin alkyl ethers, glycerin fatty acid esters, polyglycerin fatty acid esters, sorbitan fatty acid esters, their derivatives, and their mixtures. In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one surfactant is an anionic surfactant. [000420] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the anionic surfactant is chosen from the group consisting of: alkyl phosphates, polyoxyalkylene alkyl ether phosphates, sulfonates, alkyl sulfates, polyaspartates, their derivatives and their mixtures. [000421] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one surfactant is an amphoteric surfactant. [000422] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one surfactant is at least 0.1% relative to the total mass of the composition. [000423] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one surfactant is at least 5% relative to the total mass of the composition. [000424] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one surfactant is between 0.1% and 30% relative to the total mass of the composition. [000425] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one surfactant is between 5% and 15% relative to the total mass of the composition. [000426] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it further comprises at least one antioxidant. [000427] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the antioxidant is chosen from the group comprising: phenolic antioxidants of the BHA, BHT, DBPC, gallate type, so-called natural antioxidants such as dl-alpha-tocopherol or its derivatives, plant extracts, dibasic lipopeptides such as lysine or arginine, and mixtures thereof. [000428] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the antioxidant is at least 0.01% relative to the total mass of the composition. [000429] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the antioxidant is at least 0.1% relative to the total mass of the composition. [000430] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the antioxidant is between 0.01% and 2% relative to the total mass of the composition. [000431] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the antioxidant is between 0.01% and 1% relative to the total mass of the composition. [000432] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the antioxidant is between 0.1% and 1% relative to the total mass of the composition.[000433] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the antioxidant is between 0.01% and 0.1% relative to the total mass of the composition. [000434] This part is essential to obtain the coloring. The pigments used are of synthetic, mineral or vegetable origin. Their dosage is also subtle. [000435] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one pigmentary part. [000436] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the pigmentary part is chosen from the group comprising: water-soluble dyes, liposoluble dyes, pigments, pearlescent agents, glitter and mixtures thereof. [000437] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the pigmentary part comprises a pigment chosen from the group comprising: organic pigments such as fixed pigments or precipitated pigments, mineral pigments such as titanium dioxide or iron oxides, sodium aluminosilicate thiosulfate, chromium oxides, bismuth oxychloride, copper phthalocyanine, metal-free phthalocyanine, chlorinated copper phthalocyanine. [000438] Thus, the titanium oxide level determines the coverage and opacity of the film. [000439] The use of lakes or precipitated pigments determines the color and chrominance. [000440] By way of illustration, other types of pigments can be used such as titanium mica, borosilicates and their derivatives, mica, silica. [000441] Mineral pigments are used to nuance the shades while compounds such as bismuth oxychloride can be used to confer particular effects (metallic, shimmering effects, etc.). [000442] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the pigmentary part comprises a colorant of plant origin chosen from fruit and / or plant extracts containing colorants. [000443] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the pigmentary part is at least 0.01% relative to the total mass of the composition. [000444] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the pigmentary part is at least 1% relative to the total mass of the composition. [000445] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the pigmentary part is at least 5% relative to the total mass of the composition. [000446] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of pigmentary part is between 0.01% and 20% relative to the total mass of the composition. [000447] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of pigmentary part is between 1% and 20% relative to the total mass of the composition. [000448] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of pigmentary part is between 5% and 20% relative to the total mass of the composition. [000449] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of pigmentary part is between 1% and 15% relative to the total mass of the composition. [000450] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of pigmentary part is between 5% and 15% relative to the total mass of the composition. [000451] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of part pigment is between 0.01% and 5% relative to the total mass of the composition. [000452] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of pigmentary part is between 5% and 10% relative to the total mass of the composition. [000453] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of pigmentary part is between 10% and 15% relative to the total mass of the composition. [000454] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it has a naturalness index greater than or equal to 80% carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000455] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it has a naturalness index greater than or equal to 85% of carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000456] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it has a naturalness index greater than or equal to 90% of carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000457] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it has a naturalness index greater than or equal to 95% of carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000458] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that at least 50% by mass of its ingredients is of natural origin relative to the total mass of the composition. [000459] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that at least 75% by mass of its ingredients is of natural origin relative to the total mass of the composition. [000460] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that at least 90% by mass of its ingredients is of natural origin relative to the total mass of the composition. [000461] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that 50% by mass of its ingredients is of natural origin relative to the total mass of the composition. [000462] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that 75% by mass of its ingredients is of natural origin relative to the total mass of the composition. [000463] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that 90% by mass of its ingredients is of natural origin relative to the total mass of the composition. [000464] An ingredient of “natural origin” means an ingredient that is obtained directly from the earth, soil, water, atmosphere or from plants, via, where appropriate, one or more physical processes, such as, for example, grinding, refining, distillation, purification or filtration. [000465] An ingredient of “natural origin” means an ingredient that has undergone one or more chemical or industrial treatments, resulting in modifications that do not affect the essential qualities of this ingredient and / or an ingredient comprising mainly natural constituents that have or have not undergone transformations, as indicated above. [000466] As a non-limiting example of additional chemical or industrial treatments resulting in modifications which do not affect the essential qualities of a natural compound, we can mention those authorized by control organizations such as Ecocert or COSMOS. [000467] For the purposes of the invention, the term "synthetic or artificial ingredient" means an ingredient which does not meet the definitions of natural or naturally derived ingredients indicated above. [000468] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the drying time at 20°C after application of the composition to the skin is less than or equal to 5 minutes. [000469] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the drying time at 20°C after application to the skin of the composition is less than or equal to 4 min and 30 s. [000470] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the drying time at 20°C after application to the skin of the composition is less than or equal to 4 minutes. [000471] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the drying time at 20°C after application to the skin of the composition is equal to 4 minutes. [000472] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it is in a solid powdery, cast or compacted form or in the form of a stick. [000473] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it is in a solid powdery form such as powders. [000474] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of a solid composition, for example in stick form. [000475] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of a pasty or liquid fluid. [000476] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of a flexible paste, an ointment, a solid or liquid ointment of the cream type. [000477] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of an H / W, W / O, or multiple emulsion of the H / W / O or W / O / W type. [000478] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of an anhydrous composition. [000479] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the anhydrous composition contains an aqueous phase whose mass percentage is less than 5% relative to the total mass of the composition. [000480] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of a foundation. [000481] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of a primer or a makeup base. [000482] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of an eyeshadow. [000483] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of a blush. [000484] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of a makeup remover formulation. [000485] The invention also relates to a process for preparing a cosmetic composition applicable to the skin according to the present invention comprising the following steps: a) The production of a Guerbet alcohol in CIO, 2-isopropyl-5-methylhexan-1-ol (CAS 2051-33-4) by a Guerbet synthesis from isoamyl alcohol (CAS 123-51-3). b) The mixing of the product formed in step 1) with at least one bio-sourced alcohol in C>10 to form a mixture of bio-sourced alcohols. c) The obtaining of a volatile mixture of alkanes consisting of 2,3,6-trimethylheptane (CAS 4032-93-3) and a C>10 alkane, by a dehydration reaction followed by a hydrogenation reaction of the mixture of bio-sourced alcohols formed in step 2). d) The addition of none, one or more alkanes to this volatile mixture of alkanes. e) The combination of this volatile mixture of alkanes with at least one compound chosen from non-volatile oils, glossy oils, pasty fatty substances, gelling agents, film-forming polymers, waxes, pigments, dyes, and mixtures thereof. [000486] Even more specifically, the invention also relates to a process for preparing a cosmetic composition applicable to the skin according to the present invention comprising the following steps: a) The production of a Guerbet alcohol in CIO, 2-isopropyl-5-methylhexan-1-ol (CAS 2051-33-4) by a Guerbet synthesis from isoamyl alcohol (CAS 123-51-3). b) Mixing the product formed in step 1) with biosourced n-dodecanol to form a mixture of biosourced alcohols. c) Obtaining a volatile mixture of alkanes consisting of 2,3,6-trimethylheptane (CAS 4032-93-3) and n-dodecane (CAS 112-40-3) by a dehydration reaction followed by a hydrogenation reaction of the mixture of bio-sourced alcohols formed in step 2). d) Adding none, one or more alkanes to this volatile mixture of alkanes.e) The combination of this volatile mixture of alkanes with at least one compound chosen from non-volatile oils, glossy oils, pasty fatty substances, gelling agents, film-forming polymers, waxes, pigments, dyes, and mixtures thereof. [000487] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the process, namely the synthesis of Guerbet, is carried out from raw materials of plant, bacterial or animal origin. [000488] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, is carried out using a base chosen from the group consisting of: KOH, NaOH, NaOCHs, KOCH3. [000489] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, is carried out using a catalyst chosen from the group comprising: copper derivatives such as PriCat Ou 50 / 8, at least one metal from group VIII, such as nickel, palladium, platinum, their derivatives and their mixtures. [000490] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the process, namely the synthesis of Guerbet, is carried out at temperatures between 150 and 300°C. [000491] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the process, namely the synthesis of Guerbet, is carried out at pressures of between 1 and 15 bars. [000492] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the process, namely the synthesis of Guerbet, is carried out for a period of between 10 and 24 hours. [000493] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, makes it possible to obtain a mass percentage of branched CIO alcohol greater than or equal to 75%. [000494] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, makes it possible to obtain a mass percentage of branched CIO alcohol greater than or equal to 90%. [000495] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the process further comprises a step of purification by distillation to remove impurities. [000496] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, makes it possible to obtain a branched CIO alcohol whose percentage of carbon 14 ( 14C) is greater than or equal to 75% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000497] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, makes it possible to obtain a branched CIO alcohol whose percentage of carbon 14 ( 14 C) is greater than or equal to 90% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000498] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, makes it possible to obtain a branched CIO alcohol whose percentage of carbon 14 ( 14 C) is 100% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000499] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that in step 2 of the process at least one biosourced C>12 alcohol chosen from the group consisting of: n-dodecanol, n-tetradecanol, and mixtures thereof is added. [000500] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 3 of the process is composed of a dehydration step then a hydrogenation step. [000501] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the dehydration step of step 3 of the process is carried out using a catalyst chosen from the group consisting of alumina and its derivatives. [000502] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the dehydration step of step 3 of the process is carried out using a catalytic support chosen from the group consisting of silica wool and its derivatives. [000503] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the dehydration step of step 3 of the process is carried out at temperatures between 200 and 380°C. [000504] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the dehydration step of step 3 of the process is carried out under an inert atmosphere. [000505] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the dehydration step of step 3 of the process makes it possible to obtain a conversion into alkene in branched CIO greater than or equal to 95%. [000506] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the dehydration step of step 3 of the process makes it possible to obtain a conversion into alkene in branched CIO greater than or equal to 99%. [000507] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the trimethylheptane obtained in the hydrogenation step of step 3 of the process is 2,3,6-trimethylheptane. [000508] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out using a catalyst comprising at least one metal from group VIII such as palladium, nickel, platinum, their derivatives and their mixtures. [000509] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out using a catalytic support chosen from the group consisting of silica wool and its derivatives. [000510] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out at temperatures between 100 and 250°C. [000511] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out under an inert atmosphere. [000512] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is preceded by inerting with 15 bars of nitrogen in the reactor. [000513] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is preceded by inerting with 5 bars of nitrogen three times in the reactor. [000514] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out by adding from 2 to 15 bars of hydrogen to the reactor. [000515] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out by adding 5 bars of hydrogen to the reactor. [000516] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out by adding 10 bars of hydrogen to the reactor. [000517] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out for a period of 3 to 12 hours. [000518] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out for a period of 5 hours. [000519] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process makes it possible to obtain a conversion into 2,3,6-trimethylheptane greater than or equal to 95%. [000520] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process makes it possible to obtain a conversion into 2,3,6-trimethylheptane greater than or equal to 99%. [000521] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the process makes it possible to obtain a mixture of volatile alkane defined according to the present invention. [000522] Surprisingly, the process for preparing a cosmetic composition applicable to the skin, defined according to the present invention, is characterized in that the process makes it possible to obtain a deodorized or odorless volatile alkane mixture. [000523] This organoleptic characteristic is conducive to its use in cosmetic compositions. [000524] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 4 of the process makes it possible to obtain a mixture of volatile alkane defined according to the present invention. [000525] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 4 of the process makes it possible to obtain a volatile mixture of alkanes whose percentage of carbon 14 ( 14C) is greater than or equal to 75% carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000526] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 4 of the process makes it possible to obtain a volatile mixture of alkanes whose percentage of carbon 14 ( 14 C) is greater than or equal to 90% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000527] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 4 of the process makes it possible to obtain a volatile mixture of alkanes whose percentage of carbon 14 ( 14 C) is 100% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000528] In one embodiment, the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 5 of the process makes it possible to obtain a cosmetic composition applicable to the skin comprising a mixture of volatile alkane defined according to the present invention. EXAMPLES: [000529] In the following examples, the foundations are formulated as follows: [000530] _1) Dispersion of phase 2 in phase 1 with progressive stirring at Turax up to 12000 rpm for 2 minutes. [000531] 2) Addition of phase 3 to phases 1 and 2. 3) Adding phase 4 to the mixture of phases 1, 2 and 3. [000532] The mixture of phases 1, 2, 3 and 4 constitutes the oily phase of the cosmetic formulation. [000533] Phases 5 and 6 (aqueous phase) are then added to the mixture of phases 1, 2, 3 and 4 to make the emulsion. The mixture obtained is gradually stirred in the Turax up to 12000 rpm for 2 minutes. [000534] Finally, phase 7 is dispersed in the emulsion by progressive stirring with the Turax up to 12000 rpm for 2 minutes. Example 1: Composition and properties of a reference foundation Drying time on the skin of the reference foundation [000535] The drying time at 20°C is measured after application to the skin of a panel of users, by carrying out tests to verify drying using a non-woven handkerchief from t0 to tx, a non-woven handkerchief marking test being carried out every 30 seconds. The formulation is considered dry when there is no more transfer. [000536] The drying time on the skin of the reference foundation of example 1 is 3 minutes and 30 seconds. [000537] This drying time is satisfactory for a foundation formulation. Application characteristics of the reference foundation [000538] To establish this study, the reference foundation formulation was tested by a panel of users. [000539] Thus, according to this study, the reference foundation formulation has satisfactory hold and is considered a long-lasting formulation. [000540] Regarding the other application characteristics, the study via the user panel showed that the reference foundation is easily applicable, has water resistance and satisfactory color. Example 2: Composition and properties of a foundation comprising a volatile mixture of alkanes according to the prior art: [000541] In the composition of example 2 of a foundation comprising a volatile mixture of alkanes according to the prior art, EP3773432A1, isododecane (CAS 13475-82-6), volatile solvent, present in phase 1 of the reference formula has been substituted by a volatile mixture of alkanes of the prior art. [000542] In this example, the volatile solvent is a volatile mixture of alkanes consisting of 30% n-decane (CAS 124-18-5), 68% n-dodecane (CAS 112-40-3) and 2% n-tetradecane (CAS 629-59-4). Drying time on the skin of the foundation according to the prior art [000543] The drying time on the skin of the foundation according to the prior art of example 2 is 7 minutes. [000544] This drying time is not satisfactory for a foundation formulation within the meaning of the present invention. Characteristics of applications of the foundation according to the prior art [000545] To establish this study, the foundation formulation of example 2 was tested by a panel of users. [000546] Thus, according to this study, the foundation formulation according to the prior art has suitable hold but is sticky. [000547] Concerning the other application characteristics, the study via the user panel showed that the foundation according to the prior art is less satisfactory than that of the reference foundation. Example 3: Composition and properties of a foundation according to the invention: [000548] In the composition of Example 3 of a foundation according to the present invention, the isododecane (CAS 13475-82-6) present in phase 1 of the reference formula has been substituted by a volatile mixture of alkanes according to the present invention. [000549] In this example, the volatile alkane mixture consists of 45% 2,3,6-trimethylheptane (CAS 4032-93-3) and 55% n-dodecane (CAS 112-40-3). Drying time on skin of the foundation in example 3: [000550] The drying time on the skin of the foundation according to the invention of example 3 is 4 minutes. [000551] This drying time is satisfactory for a foundation formulation within the meaning of the present invention. Application characteristics of the foundation in example 3: [000552] To establish this study, the foundation formulation was tested by a panel of users. [000553] Thus, according to this study, the foundation formulation according to the present invention has satisfactory hold within the meaning of the present invention. [000554] Concerning the other application characteristics, the study via the user panel showed that the foundation within the meaning of the present invention has properties similar to those of the reference foundation (easily applicable, has water resistance and a satisfactory color). Example 4: Composition and properties of a foundation according to the invention [000555] In the composition of Example 4 of a foundation according to the present invention, the isododecane present in phase 1 of the reference formula has been substituted by a volatile mixture of alkanes according to the present invention. [000556] In the context of this example, the volatile mixture of alkanes is made up of: 5% of 2,2,4-trimethylhexane (CAS 16747-26-5), 44% of 2,3,6-trimethylheptane (CAS 4032-93-3) and 51% of n-dodecane (CAS 112-40-3). Drying time on skin of the foundation in example 4 [000557] The drying time on the skin of the foundation according to the invention of example 4 is 3 minutes and 30 seconds. [000558] This drying time is satisfactory for a foundation formulation within the meaning of the present invention. Application characteristics of the foundation in example 4 [000559] To establish this study, the foundation formulation was tested by a panel of users. Thus, according to this study, the foundation formulation according to the present invention has satisfactory hold within the meaning of the present invention. [000560] Concerning the other application characteristics, the study via the user panel showed that the foundation within the meaning of the present invention has properties similar to those of the reference foundation (easily applicable, has water resistance and a satisfactory color). Example 5: Composition and properties of a foundation according to the invention [000561] In the composition of Example 5 of a foundation according to the present invention, the isododecane (CAS 13475-82-6) present in phase 1 of the reference formula has been substituted by a volatile mixture of alkanes according to the present invention. [000562] In the context of this example, the volatile mixture of alkanes is made up in this case of: 15% isododecane (CAS 13475-82-6), 35% 2,3,6-trimethylheptane (CAS 4032-93-3) and 50% n-dodecane (CAS 112-40-3). Drying time on skin of the foundation in example 5 [000563] The drying time on the skin of the foundation according to the invention of example 5 is 3 minutes and 45 seconds. [000564] This drying time is satisfactory for a foundation formulation within the meaning of the present invention. Application characteristics of the foundation in example 5 [000565] To establish this study, the foundation formulation was tested by a panel of users. Thus, according to this study, the foundation formulation according to the present invention has satisfactory hold within the meaning of the present invention. [000566] Concerning the other application characteristics, the study via the user panel showed that the foundation within the meaning of the present invention has properties similar to those of the reference foundation (easily applicable, has water resistance and a satisfactory color). [000567] Example 6: Biodegradability of volatile mixtures of alkanes used in cosmetic compositions applicable to the skin according to the invention. [000568] The biodegradability of a volatile mixture of alkanes used in the cosmetic compositions applicable to the skin according to the invention was measured according to the OECD 301F method. For comparison, the degradation of isododecane (CAS 13475-82-6) was also measured with this method. [000569] The OECD 301F method allows the ease of biodegradation of a substance to be characterized by a manometric respirometry test. [000570] The volatile mixture of alkanes tested has a biodegradability of 58% according to the OECD 301F method, whereas isododecane (CAS 13475-82-6) is not biodegradable according to this method.

Claims

DEMANDS

1. A cosmetic composition applicable to the skin characterized in that it comprises a volatile mixture of alkanes, said volatile mixture of alkanes comprising: a) From 20 to 100% of a fraction A which comprises at least one branched alkane in C< 10; b) From 0 to 80% of a fraction B which comprises at least one linear or branched alkane in C>10; and in that said volatile mixture of alkanes has a flash point below 55°C measured according to ASTM D93 and represents a mass percentage greater than or equal to 10% relative to the total mass of the composition.

2. A cosmetic composition applicable to the skin characterized in that it comprises a volatile mixture of alkanes, said volatile mixture of alkanes comprising: a) From 20 to 100% of a fraction A which comprises at least one branched alkane in C< 10; b) From 0 to 80% of a fraction B which comprises at least one linear or branched alkane in C>10; and in that said volatile mixture of alkanes has a flash point below 55°C measured according to ASTM D93 and represents a mass percentage greater than or equal to 25% relative to the total mass of the composition.

3. A cosmetic composition applicable to the skin according to any one of the preceding claims, characterized in that said volatile mixture of alkanes has a percentage greater than or equal to 85% of carbon-14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

4. A cosmetic composition applicable to the skin according to any one of the preceding claims is characterized in that said volatile mixture of alkanes is obtained from raw materials of vegetable, bacterial or animal origin.

5. A cosmetic composition applicable to the skin according to any one of the preceding claims, characterized in that the volatile mixture of alkanes exhibits a biodegradability of at least 50% according to OECD method 301F.

6. A cosmetic composition applicable to the skin according to any one of the preceding claims is characterized in that at least one branched C<10 alkane of said volatile mixture of alkanes is selected from the group comprising branched C9, branched C10, and mixtures thereof.

7. Cosmetic composition applicable to the skin according to any one of the preceding claims characterized in that at least one branched C< 10 alkane of said volatile mixture of alkanes is a branched C10 alkane.

8. Skin-applicable cosmetic composition according to any one of the preceding claims characterized in that at least one branched C< 10 alkane of said volatile mixture of alkanes is 2,3,6-trimethylheptane (CAS 4032-93-3).

9. A cosmetic composition applicable to the skin according to any one of the preceding claims characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 51% and 100% relative to the total mass of said volatile mixture of alkanes.

10. A cosmetic composition applicable to the skin according to any one of the preceding claims characterized in that at least one linear or branched C>10 alkane of said volatile mixture of alkanes is selected from the group comprising Cn, C12, C13, C, C15, C16 alkanes and mixtures thereof.

11. A cosmetic composition applicable to the skin according to any one of the preceding claims characterized in that at least one linear or branched C>10 alkane of said volatile mixture of alkanes is n-dodecane (CAS 112-40-3).

12. A cosmetic composition applicable to the skin according to any one of the preceding claims characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0 and 50% relative to the total mass of said volatile mixture of alkanes.

13. Cosmetic composition applicable to the skin according to any one of the preceding claims characterized in that said volatile mixture of alkanes comprises 2,3,6-trimethylheptane (CAS 4032-93-3) and n-dodecane (CAS 112-40-3).

14. A cosmetic composition applicable to the skin according to any one of the preceding claims characterized in that it comprises at least one non-volatile oil having a flash point above 110°C measured according to ATSM D93.

15. A cosmetic composition applicable to the skin according to any one of the preceding claims characterized in that at least 75% by mass of its ingredients is of natural origin in relation to the total mass of the composition.

16. A cosmetic composition applicable to the skin according to any one of the preceding claims characterized in that at least 85% by mass of its ingredients is of natural origin in relation to the total mass of the composition.

17. A cosmetic composition applicable to the skin according to any one of the preceding claims characterized in that at least 90% by mass of its ingredients is of natural origin in relation to the total mass of the composition.

18. Cosmetic composition applicable to the skin according to any one of the preceding claims characterized in that the drying time at 20°C after application of the composition to the skin is less than or equal to 5 minutes.

19. A process for preparing a skin-applicable cosmetic composition according to the present invention comprising the following steps: a) The production of a Guerbet alcohol in C10, 1-Hexanol, 2-isopropyl-5-methyl (CAS 2051-33-4) by a Guerbet synthesis from isoamyl alcohol (CAS 123-51-3). b) The mixing of the product formed in step 1) with at least one bio-based alcohol in C>10 to form a bio-based alcohol mixture. c) The obtaining of a volatile alkane mixture consisting of 2,3,6-trimethylheptane (CAS 4032-93-3) and a C>10 alkane, by a dehydration reaction followed by a hydrogenation reaction of the bio-based alcohol mixture formed in step 2). d) The addition of none, one or more volatile alkanes to this volatile mixture of alkanes.e) The association of this volatile mixture of alkanes with at least one compound selected from non-volatile oils, bright oils, pasty fats, gelling agents, film-forming polymers, waxes, pigments, dyes, and mixtures thereof.

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