Skin-applicable cosmetic compositions based on volatile alkane mixtures - Patents.com

Abstract

The invention relates to a cosmetic composition that can be applied to the skin, the cosmetic composition comprising a volatile alkane mixture, the volatile alkane mixture being (a) 20 to 100% of an A fraction containing at least one C10 or smaller branched chain alkane; (b) 0 to 80% of a B fraction containing at least one linear or branched alkane above C10; The mixture of volatile alkanes is characterized in that it has a flash point of less than 55° C., measured according to the ASTM D93 standard, and represents a mass percentage of at least 10% relative to the total mass of the composition. The invention also relates to a method for obtaining said composition.

Description

[Technical field]

[0001] The present application relates to the cosmetic technical field.

[0002] More specifically, the invention relates to cosmetic compositions that can be applied to the skin, and more particularly to compositions such as makeup primers or bases, blushes, eye shadows, foundations or makeup remover formulations.

[0003] More specifically, the invention relates to cosmetic compositions applicable to the skin that include a mixture of volatile alkanes.

[0004] As part of this application, some definitions are provided.

[0005] In the present invention, foundation means a formulation intended to even and lightly color the skin. Foundation is applied in an even, but blendable layer over parts of the face and neck.

[0006] Similarly, the terms "base", "primer" or "microbase" refer to cosmetic compositions that soften skin imperfections and prevent makeup from settling into wrinkles and pores throughout the day. Today, these formulations serve to perfectly prepare the skin before applying foundation, blush, etc.

[0007] For purposes of the present invention, a "blush" is a cosmetic composition that is intended to mimic or enhance the appearance of "rosy cheeks."

[0008] Similarly, "eye shadow" means a cosmetic composition that can be applied to the eyelids to create color contrast and highlight the eyes.

[0009] The term "makeup removing formulation" refers to makeup removing oils, but also to biphasic makeup removing formulations capable of removing makeup from the face while respecting the skin of the user.

[0010] As mentioned above, these makeup removing formulations can take the form of makeup removing oils that are comprised of oils and various fatty materials.

[0011] They may also be provided in the form of a biphasic formulation comprising an aqueous phase and an oil phase.

[0012] An "alkane" is a saturated hydrocarbon consisting of only carbon and hydrogen atoms linked by single covalent bonds, with the general formula: n H 2n+2 It is.

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

[0014] A "branched chain alkane" is an alkane that has any carbon atom bonded to three or four carbon atoms.

[0015] "C x An "alkane" is an alkane of x carbon atoms, which may be linear or branched. For example, dodecane is C 12 It is an alkane.

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

[0017] In the present invention, the term "volatile alkane mixture" means an alkane mixture having a flash point of 55° C. or less, measured according to the ATSM D93 standard.

[0018] The flash point measured according to the ATSM D93 standard is called the "flash point". The unit of the flash point measured according to the ATSM D93 standard is Celsius (℃). In addition, each value is obtained by a measurement method according to the ATSM D93 standard, and may be the average value.

[0019] The term "mass percentage" refers to the ratio of the mass of a first compound to the total mass of a mixture or composition of compounds expressed as a percentage. For example, 10 grams of compound y in a mixture z with a total mass of 100 grams would be the mass percentage of y in z of 10%.

[0020] A "biogenic" compound or organic composition is one in which the organic carbon present in the compound or composition is determined to be 100% plant-derived (100% biomass) by radiocarbon analysis according to any of the following standards: ATSM D6866, EN 16640, or EN 16785-1. 14 C) is defined as being.

[0021] The "naturalness index" of an organic composition is the percentage of organic carbon of plant origin ( 14 C) percentage.

[0022] In the present invention, the OECD 301F method can assess the biodegradability of a substance by a manometric respiration test.

[0023] Since isododecane was introduced into cosmetics in the 1990s, its use has expanded significantly in all areas of cosmetics, from skin care products, to makeup products such as mascara compositions and long-wearing lipsticks, and hair care products such as serums and anti-frizz dry oils.

[0024] In some of these products, isododecane constitutes up to 60% by weight of the cosmetic formulation composition.

[0025] Long-lasting make-up products currently account for approximately 25% of the global make-up market. Isododecane is the key ingredient that provides long-lasting, transfer-free and water-resistant properties while maintaining optimal comfort. This market developed from an essential ingredient, Isododecane, which is derived from petrochemicals.

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

[0027] The first approach to address these challenges is to develop a method for producing isododecane that does not use petroleum feedstocks.

[0028] Recently, GLOBAL BIOENEGIES Inc. disclosed in patent application WO2020188033 the production of isobutene by a biological process using genetically modified organisms such as modified E. coli.

[0029] According to patent application WO2021228824, the obtained isobutene gas is converted to isododecane by a solvent phase oligomerization reaction followed by a hydrogenation step.

[0030] This reaction, known from the chemical industry, suffers from the drawbacks of forming by-products and low yields, raising questions about the long-term viability of the approach in terms of volume and cost.

[0031] Nevertheless, GLOBAL BIOENEGIES raised more than €100 million to develop such a process between 2008 and early 2021, when it launched its first batch of cosmetic-grade isododecane.

[0032] This long-term economic investment to produce isododecane from natural feedstocks is noteworthy.

[0033] Indeed, the second strategy, reducing the amount of isododecane in current cosmetics or replacing it with another, is a challenge of an entirely different scale for the cosmetics industry.

[0034] Furthermore, as described in patent application EP3349720, finding a biodegradable alternative to isododecane would be a major advance from an environmental point of view, as such compounds could account for a mass percentage of up to 60% of a cosmetic composition.

[0035] Therefore, research was carried out to identify compounds that could be satisfactory replacements for isododecane. These compounds should have similar volatility characteristics and similar behavior in formulations, especially with regard to sensory properties such as ease of spread on skin, feel on touch, and also the "non-greasy" nature of the resulting films.

[0036] Therefore, from an economic and environmental standpoint, there is a need for cosmetic excipients that can replace isododecane as an excipient, particularly in cosmetic formulations.

[0037] Surprisingly, applicants have demonstrated that such an excipient can be obtained.

[0038] The excipient is a predefined mixture of volatile alkanes.

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

[0040] Furthermore, such excipients are biodegradable according to OECD method 301F, unlike isododecane (CAS 13475-82-6).

[0041] Advantageously, the excipients of the present invention are at least 50% biodegradable according to the OECD 301F method.

[0042] The invention also demonstrates that the incorporation of this cosmetic excipient into cosmetic formulations, particularly into formulations of cosmetic compositions that can be applied to the skin, such as bases or primers, foundations or powders, has the effect of providing the cosmetic formulations with notable cosmetic qualities, such as ease of application, water resistance, good hold, and darker and brighter colors, in addition to the excellent stability of these formulations.

[0043] Moreover, the incorporation of this cosmetic excipient makes it possible to obtain skin-applicable cosmetic formulations that exhibit a naturalness index of more than 90%.

[0044] The invention includes a volatile alkane mixture, the volatile alkane mixture comprising: a) 20 to 100% of fraction A containing at least one branched-chain alkane of C10 or less; b) 0 to 80% of a B fraction containing at least one linear or branched alkane above C10; The present invention relates to a cosmetic composition applicable to the skin, characterized in that the mixture of volatile alkanes has a flash point, measured according to the ASTM D93 standard, of less than 55° C. and represents a mass percentage of at least 10% relative to the total mass of the composition.

[0045] The invention also includes a volatile alkane mixture, the volatile alkane mixture comprising: a) 20 to 100% of fraction A containing at least one branched-chain alkane of C10 or less; b) 0 to 80% of a B fraction containing at least one linear or branched alkane above C10; The present invention relates to a cosmetic composition applicable to the skin, characterized in that the mixture of volatile alkanes has a flash point, measured according to the ASTM D93 standard, of less than 55° C. and represents a mass percentage of at least 25% relative to the total mass of the composition.

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

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

[0048] The inventive cosmetic composition applicable to the skin is preferably characterized in that it contains a mass percentage of isododecane less than or equal to 5% relative to the total mass of the composition.

[0049] The dermatologically applicable cosmetic compositions of the invention are preferably characterized as being free of isododecane.

[0050] In one embodiment, the skin applicable cosmetic composition of the invention comprises a linear C 10 It is characterized by not containing any alkanes.

[0051] Conventionally, the skin applicable cosmetic compositions of the invention, particularly foundation and / or base compositions, may be formulated in the form of a powder, loose, compacted or cast variety, liquid or solid.

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

[0053] These emulsions may be in various forms, i.e. oil-in-water emulsions, water-in-oil emulsions, but also under certain conditions in the form of multiphase W / O / W (water / oil / water) or even O / W / O (oil / water / oil) emulsions combining at least one aqueous phase and one oily phase.

[0054] Preferably, the dermatologically applicable cosmetic compositions of the invention are characterized in that they comprise at least one aqueous phase and one oily phase.

[0055] The aqueous phase is essentially water and is described in more detail below.

[0056] The oil phase contains a wide variety of ingredients selected primarily for their organoleptic properties. A volatile solvent for ease of application and retention. An oil that improves slip and makes it easier to apply. Wax with adjustable consistency and hardness. Fatty substances such as pasty fats and gelling agents to adjust smoothness and ease of use.

[0057] Generally, the dermatologically applicable cosmetic products of the invention include a pigment moiety.

[0058] Finding a delicate balance between these different ingredients results in a cosmetic composition that can be applied to the skin.

[0059] These ingredients can be supplemented with various additives that impart specific properties: polymers, absorbent powders, stabilizing additives (antioxidants, preservatives, etc.), fragrances, and, where applicable, active ingredients.

[0060] The various components of the inventive composition are described in detail below.

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

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

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

[0064] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one water-miscible organic solvent is selected 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 C2 to C4 short chain aldehydes.

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

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

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

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

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

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

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

[0072] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that it comprises at least one oily phase.

[0073] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the oily phase comprises a volatile solvent, an oil, a wax, a fatty substance such as a pasty fatty substance or a gelling agent.

[0074] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the oil phase further comprises polymers, absorbing powders, stabilizers (antioxidants, preservatives, etc.), fragrances and, where applicable, active ingredients.

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

[0076] For purposes of the present invention, the volatile solvent is defined as a "volatile alkane mixture."

[0077] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the volatile alkane mixture has a flash point of 50° C. or less.

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

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

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

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

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

[0083] In one embodiment, a "volatile alkane mixture" is a mixture of alkanes that does not include any alkanes with more than 16 carbon atoms.

[0084] Preferably, a "volatile alkane mixture" is a mixture of alkanes that does not contain any alkanes with more than 15 carbon atoms.

[0085] Preferably, a "volatile alkane mixture" is a mixture of alkanes that does not contain any alkanes with more than 14 carbon atoms.

[0086] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mixture of volatile alkanes has a carbon-14 (14C) naturality index of 60% or more, determined according to any of the standards ATSM D6866, EN 16640, or EN 16785-1.

[0087] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises a volatile alkane mixture having a carbon-14( 14 C) characterized by having a naturalness index of 70% or more.

[0088] Preferably, the skin-applicable cosmetic composition of the invention comprises a volatile alkane mixture having a carbon-14( 14 C) characterized by having a naturalness index of 75% or more.

[0089] Preferably, the skin-applicable cosmetic composition of the invention comprises a volatile alkane mixture having a carbon-14( 14 C) characterized by having a naturalness index of 85% or more.

[0090] Preferably, the skin-applicable cosmetic composition of the invention comprises a volatile alkane mixture having a carbon-14( 14 C) characterized by having a naturalness index of 90% or more.

[0091] Advantageously, the volatile alkane mixture present in the composition of the invention has a carbon-14( 14 C) characterized by having a naturalness index of 100%.

[0092] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that said mixture of volatile alkanes is obtained from a source of plant, bacterial or animal origin.

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

[0094] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the volatile alkane mixture is at least 50% biodegradable according to OECD 301F method.

[0095] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the volatile alkane mixture is at least 60% biodegradable according to the OECD 301F method.

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

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

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

[0099] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the volatile alkane mixture has a biodegradability of between 60% and 70% according to the OECD 301F method.

[0100] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the volatile alkane mixture has a biodegradability of between 70% and 80% according to the OECD 301F method.

[0101] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of said mixture of volatile alkanes relative to the total mass of the composition is at least 10%.

[0102] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of said mixture of volatile alkanes relative to the total mass of the composition is at least 25%.

[0103] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of said mixture of volatile alkanes relative to the total mass of the composition is at least 30%.

[0104] Preferably, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of said mixture of volatile alkanes relative to the total mass of the composition is at least 40%, and even more preferably at least 50%.

[0105] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of said mixture of volatile alkanes relative to the total mass of the composition is between 10% and 80%.

[0106] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of said mixture of volatile alkanes relative to the total mass of the composition is between 25% and 80%.

[0107] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of said mixture of volatile alkanes relative to the total mass of the composition is between 30% and 80%.

[0108] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of said mixture of volatile alkanes relative to the total mass of the composition is between 40% and 80%.

[0109] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of said mixture of volatile alkanes relative to the total mass of the composition is between 30% and 60%.

[0110] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of said mixture of volatile alkanes relative to the total mass of the composition is between 25% and 50%.

[0111] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of said mixture of volatile alkanes relative to the total mass of the composition is between 10% and 30%.

[0112] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of said mixture of volatile alkanes relative to the total mass of the composition is between 40% and 60%.

[0113] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of said mixture of volatile alkanes relative to the total mass of the composition is between 60% and 80%.

[0114] The A fraction of the volatile alkane mixture is composed of branched chain C8 alkanes, branched chain C9 alkanes, branched chain C 10 alkanes, and mixtures thereof.

[0115] The A fraction of the volatile alkane mixture comprises at least one branched C10 or lower alkane.

[0116] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one branched C10 or lower alkane of said mixture of volatile alkanes is at least one branched C8 alkane.

[0117] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises a volatile alkane mixture in which at least one branched C10 or less alkane is a branched C9 alkane, a branched C 10 alkanes, and mixtures thereof.

[0118] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that at least one of the branched C10 or lower alkanes of said mixture of volatile alkanes is a branched C9 alkane.

[0119] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one branched C10 or less alkane of the volatile alkane mixture is at least one branched C9 alkane selected from the group consisting of trimethylhexanes, such as 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), etc.

[0120] In the present invention, the term "trimethylhexanes" refers to all C6 alkanes branched with three methyl groups.

[0121] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that at least one branched C10 or lower alkane of said mixture of volatile alkanes is trimethylhexane.

[0122] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that at least one branched C10 or less alkane of said volatile alkane mixture is 2,2,4-trimethylhexane (CAS 16747-26-5).

[0123] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that at least one branched C10 or less alkane of said volatile alkane mixture is 2,3,5-trimethylhexane (CAS 1069-53-0).

[0124] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that at least one branched C10 or lower alkane of said volatile alkane mixture is 2,3,4-trimethylhexane (CAS 921-47-1).

[0125] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises a volatile alkane mixture in which at least one C10 or less branched alkane is a C10 or less branched alkane. 10 It is characterized as being an alkane.

[0126] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one branched C10 or less alkane of said volatile alkane mixture is selected 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,Branched chain C selected from the group consisting of 4-trimethylheptane (CAS 20278-88-0) and mixtures thereof, 10 It is characterized as being an alkane.

[0127] In the present invention, the term "trimethylheptanes" refers to all C7 alkanes branched by three methyl groups.

[0128] In one embodiment, the skin-applicable cosmetic composition of the invention is a volatile alkane mixture, wherein the at least one branched C10 or less alkane of the volatile alkane mixture is, 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. 10 It is characterized as being an alkane.

[0129] The invention also relates to a cosmetic composition applicable to the skin comprising a mixture of volatile alkanes as defined above, characterized in that at least one C10 or lower branched alkane of said mixture of volatile alkanes is trimethylheptane.

[0130] The invention also relates to a cosmetic composition applicable to the skin comprising a mixture of volatile alkanes as defined above, characterized in that at least one of the branched alkanes having C10 or less of said mixture of volatile alkanes is 2,3,6-trimethylheptane (CAS-4032-93-3).

[0131] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one C10 or lower branched alkane of the volatile alkane mixture is 2,3,5-trimethylheptane (CAS 20278-85-7).

[0132] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one C10 or lower branched alkane of the volatile alkane mixture is 2,2,3-trimethylheptane (CAS 52896-92-1).

[0133] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one C10 or lower branched alkane of the volatile alkane mixture is 3,3,4-trimethylheptane (CAS 20278-87-9).

[0134] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one C10 or lower branched alkane of the volatile alkane mixture is 2,3,4-trimethylheptane (CAS 52896-95-4).

[0135] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that at least one C10 or lower branched alkane of the volatile alkane mixture is 2,2,4-trimethylheptane (CAS 14720-74-2).

[0136] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that at least one C10 or lower branched alkane of the volatile alkane mixture is 2,2,3-trimethylheptane (CAS 52896-92-1).

[0137] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one C10 or lower branched alkane of the volatile alkane mixture is 3,3,5-trimethylheptane (CAS 7154-80-5).

[0138] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one C10 or lower branched alkane of the volatile alkane mixture is 2,5,5-trimethylheptane (CAS 1189-99-7).

[0139] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one C10 or lower branched alkane of the volatile alkane mixture is 2,4,6-trimethylheptane (CAS 2613-61-8).

[0140] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that at least one C10 or lower branched alkane of the volatile alkane mixture is 3,4,5-trimethylheptane (CAS 20278-89-1).

[0141] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one C10 or lower branched alkane of the volatile alkane mixture is 2,2,6-trimethylheptane (CAS 1190-83-6).

[0142] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one C10 or lower branched alkane of the volatile alkane mixture is 2,4,5-trimethylheptane (CAS 20278-84-6).

[0143] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one C10 or lower branched alkane of the volatile alkane mixture is 2,4,4-trimethylheptane (CAS 4032-92-2).

[0144] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one C10 or lower branched alkane of the volatile alkane mixture is 2,3,3-trimethylheptane (CAS 52896-93-2).

[0145] The invention also relates to a cosmetic composition applicable to the skin comprising a mixture of volatile alkanes as defined above, characterized in that at least one C10 or lower branched alkane of said mixture of volatile alkanes is trimethylheptane and trimethylhexane.

[0146] In one embodiment, the cutaneously applicable cosmetic composition of the invention is characterized in that the mass percentage of the A fraction of the volatile alkane mixture is at least 20% relative to the total mass of said volatile alkane mixture.

[0147] In one embodiment, the cutaneously applicable cosmetic composition of the invention is characterized in that the mass percentage of the A-fraction of the volatile alkane mixture is greater than 50% relative to the total mass of said volatile alkane mixture.

[0148] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the A fraction of the volatile alkane mixture is between 20% and 100% relative to the total mass of said volatile alkane mixture.

[0149] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the A fraction of the volatile alkane mixture is between 20% and 70% relative to the total mass of said volatile alkane mixture.

[0150] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the A fraction of the volatile alkane mixture is between 50% and 100% relative to the total mass of said volatile alkane mixture.

[0151] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the A fraction of the volatile alkane mixture is between 51% and 100% relative to the total mass of said volatile alkane mixture.

[0152] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the A fraction of the volatile alkane mixture is between 30% and 60% relative to the total mass of said volatile alkane mixture.

[0153] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the A fraction of the volatile alkane mixture is between 40% and 70% relative to the total mass of said volatile alkane mixture.

[0154] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the A fraction of the volatile alkane mixture is between 70% and 100% relative to the total mass of said volatile alkane mixture.

[0155] In one embodiment, the cutaneously applicable cosmetic composition of the invention is characterized in that the mass percentage of the A fraction of the volatile alkane mixture is between 30% and 50% relative to the total mass of said volatile alkane mixture.

[0156] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the A fraction of the volatile alkane mixture is between 40% and 60% relative to the total mass of said volatile alkane mixture.

[0157] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the A fraction of the volatile alkane mixture is between 50% and 70% relative to the total mass of said volatile alkane mixture.

[0158] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the A fraction of the volatile alkane mixture is between 70% and 90% relative to the total mass of said volatile alkane mixture.

[0159] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the A-fraction of the volatile alkane mixture is between 80% and 100% relative to the total mass of said volatile alkane mixture.

[0160] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of at least one C10 or lower branched alkane of said volatile alkane mixture is at least 20% relative to the total mass of said volatile alkane mixture.

[0161] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of at least one C10 or lower branched alkane of said volatile alkane mixture is greater than 50% relative to the total mass of said volatile alkane mixture.

[0162] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of at least one C10 or lower branched alkane of said volatile alkane mixture is between 20% and 100% relative to the total mass of said volatile alkane mixture.

[0163] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of at least one C10 or lower branched alkane of said volatile alkane mixture is between 20% and 70% relative to the total mass of said volatile alkane mixture.

[0164] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane of the volatile alkane mixture is between 50% and 100% relative to the total mass of the volatile alkane mixture.

[0165] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of at least one C10 or lower branched alkane of said volatile alkane mixture is between 51% and 100% relative to the total mass of said volatile alkane mixture.

[0166] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane of the volatile alkane mixture is between 30% and 60% relative to the total mass of the volatile alkane mixture.

[0167] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane of the volatile alkane mixture is between 40% and 70% relative to the total mass of the volatile alkane mixture.

[0168] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of at least one C10 or lower branched alkane of said volatile alkane mixture is between 70% and 100% relative to the total mass of said volatile alkane mixture.

[0169] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane of said volatile alkane mixture is between 30% and 50% relative to the total mass of said volatile alkane mixture.

[0170] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane of the volatile alkane mixture is between 40% and 60% relative to the total mass of the volatile alkane mixture.

[0171] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane of said volatile alkane mixture is between 50% and 70% relative to the total mass of said volatile alkane mixture.

[0172] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane of the volatile alkane mixture is between 70% and 90% relative to the total mass of the volatile alkane mixture.

[0173] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane of the volatile alkane mixture is between 80% and 100% relative to the total mass of the volatile alkane mixture.

[0174] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,3,6-trimethylheptane (CAS 4032-93-3), of said volatile alkane mixture is at least 20% relative to the total mass of said volatile alkane mixture.

[0175] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,3,6-trimethylheptane (CAS 4032-93-3), of said volatile alkane mixture is between 20% and 100% relative to the total mass of said volatile alkane mixture.

[0176] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,3,6-trimethylheptane (CAS 4032-93-3), of said volatile alkane mixture is between 20% and 70% relative to the total mass of said volatile alkane mixture.

[0177] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,3,6-trimethylheptane (CAS 4032-93-3), of said volatile alkane mixture is between 50% and 100% relative to the total mass of said volatile alkane mixture.

[0178] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,3,6-trimethylheptane (CAS 4032-93-3), of said volatile alkane mixture is between 51% and 100% relative to the total mass of said volatile alkane mixture.

[0179] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,3,6-trimethylheptane (CAS 4032-93-3), of said volatile alkane mixture is between 30% and 60% relative to the total mass of said volatile alkane mixture.

[0180] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,3,6-trimethylheptane (CAS 4032-93-3), of said volatile alkane mixture is between 40% and 70% relative to the total mass of said volatile alkane mixture.

[0181] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,3,6-trimethylheptane (CAS 4032-93-3), of said volatile alkane mixture is between 70% and 100% relative to the total mass of said volatile alkane mixture.

[0182] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,3,6-trimethylheptane (CAS 4032-93-3), of said volatile alkane mixture is between 30% and 50% relative to the total mass of said volatile alkane mixture.

[0183] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,3,6-trimethylheptane (CAS 4032-93-3), of said volatile alkane mixture is between 40% and 60% relative to the total mass of said volatile alkane mixture.

[0184] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,3,6-trimethylheptane (CAS 4032-93-3), of said volatile alkane mixture is between 50% and 70% relative to the total mass of said volatile alkane mixture.

[0185] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,3,6-trimethylheptane (CAS 4032-93-3), of said volatile alkane mixture is between 70% and 90% relative to the total mass of said volatile alkane mixture.

[0186] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,3,6-trimethylheptane (CAS 4032-93-3), of said volatile alkane mixture is between 80% and 100% relative to the total mass of said volatile alkane mixture.

[0187] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,2,4-trimethylhexane (CAS 16747-26-5), of said volatile alkane mixture is at least 5% relative to the total mass of said volatile alkane mixture.

[0188] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,2,4-trimethylhexane (CAS 16747-26-5), of said volatile alkane mixture is at least 10% relative to the total mass of said volatile alkane mixture.

[0189] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,2,4-trimethylhexane (CAS 16747-26-5), of said volatile alkane mixture is between 5% and 20% relative to the total mass of said volatile alkane mixture.

[0190] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,2,4-trimethylhexane (CAS 16747-26-5), of said volatile alkane mixture is between 5% and 15% relative to the total mass of said volatile alkane mixture.

[0191] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,2,4-trimethylhexane (CAS 16747-26-5), of said volatile alkane mixture is between 10% and 20% relative to the total mass of said volatile alkane mixture.

[0192] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,2,4-trimethylhexane (CAS 16747-26-5), of said volatile alkane mixture is between 10% and 15% relative to the total mass of said volatile alkane mixture.

[0193] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one C10 or lower branched alkane, 2,2,4-trimethylhexane (CAS 16747-26-5), of said volatile alkane mixture is between 15% and 20% relative to the total mass of said volatile alkane mixture.

[0194] The B fraction of the volatile alkane mixture comprises at least one linear or branched alkane above C10.

[0195] In one embodiment, the skin applicable cosmetic composition of the invention further comprises a volatile alkane mixture, wherein at least one linear or branched alkane above C10 is 11 Alkanes, C 12 Alkanes, C 13 Alkanes, C 14 Alkanes, C 15 Alkanes, C 16 characterized in that it is selected from the group comprising alkanes and mixtures thereof.

[0196] In one embodiment, the skin applicable cosmetic composition of the invention further comprises a volatile alkane mixture, wherein at least one linear or branched alkane above C10 is 11 Alkanes, C 12Alkanes, C 13 Alkanes, C 14 Alkanes, C 15 characterized in that it is selected from the group comprising alkanes and mixtures thereof.

[0197] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the at least one linear or branched alkane above C10 of said volatile alkane mixture is selected 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.

[0198] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that at least one linear or branched alkane above C10 of said volatile alkane mixture is undecane (CAS 1120-21-4).

[0199] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that at least one linear or branched alkane above C10 of said volatile alkane mixture is n-dodecane (CAS 112-40-3).

[0200] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that at least one linear or branched alkane above C10 of said volatile alkane mixture is n-tridecane (CAS 629-50-5).

[0201] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that at least one linear or branched alkane above C10 of said mixture of volatile alkanes is an undecane / tridecane mixture marketed under the name CETIOL ULTIMATE by the company BASF.

[0202] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that at least one linear or branched alkane above C10 of said volatile alkane mixture is n-tetradecane (CAS 629-59-4).

[0203] In one embodiment, the skin applicable cosmetic composition of the invention further comprises a volatile alkane mixture, wherein at least one linear or branched alkane above C10 is 12 Branched chain alkanes, C 13 Branched chain alkanes, C 14 Branched chain alkanes, C 15 Branched chain alkanes, C 16 It is characterized in that it is selected from the group comprising branched alkanes and mixtures thereof.

[0204] In one embodiment, the skin applicable cosmetic composition of the invention further comprises a volatile alkane mixture, wherein at least one linear or branched alkane above C10 is 11 They are characterized by being branched alkanes.

[0205] In one embodiment, the skin applicable cosmetic composition of the invention further comprises a volatile alkane mixture, wherein at least one linear or branched alkane above C10 is 12 They are characterized by being branched alkanes.

[0206] In one embodiment, the skin applicable cosmetic composition of the invention further comprises a volatile alkane mixture, wherein at least one linear or branched alkane above C10 is 12They are characterized by being branched alkanes. In one embodiment, the at least one linear or branched alkane above C10 of the volatile mixture of alkanes is selected 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), 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.

[0207] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the at least one linear or branched alkane above C10 of said volatile alkane mixture is at least one isododecane.

[0208] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one linear or branched alkane above C10 of said volatile alkane mixture is 2,2,4,6,6-pentamethylheptane (CAS 13475-82-6).

[0209] In one embodiment, the inventive skin applicable cosmetic composition further comprises at least one C10 linear or branched alkane of the volatile alkane mixture, the branched C 13 It is characterized as being an alkane.

[0210] In one embodiment, the inventive skin applicable cosmetic composition further comprises at least one C10 linear or branched alkane of the volatile alkane mixture, the branched C 14 It is characterized as being an alkane.

[0211] In one embodiment, the inventive skin applicable cosmetic composition further comprises at least one C10 linear or branched alkane of the volatile alkane mixture, the branched C 15 It is characterized as being an alkane.

[0212] In one embodiment, the inventive cosmetic composition applicable to the skin is characterized in that at least one linear or branched alkane above C10 of said mixture of volatile alkanes is at least hemisqualane marketed under the name NEOSSANCE by the company AMYRIS.

[0213] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises at least one C10 linear or branched alkane of said volatile alkane mixture, which is at least one C10 linear or branched alkane marketed under the name EMOGREEN by SEPPIC. 13 -C15 It is characterized as being a mixture.

[0214] In one embodiment, the inventive skin applicable cosmetic composition further comprises at least one C10 linear or branched alkane of the volatile alkane mixture, the branched C 16 It is characterized as being an alkane.

[0215] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the at least one linear or branched alkane above C10 of said volatile alkane mixture is at least one isohexadecane.

[0216] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 0% and 80% relative to the total mass of said volatile alkane mixture.

[0217] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 0% and 50% relative to the total mass of said volatile alkane mixture.

[0218] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 0% and 30% relative to the total mass of said volatile alkane mixture.

[0219] In one embodiment, the cutaneously applicable cosmetic composition of the invention is characterized in that the mass percentage of the B fraction of the volatile alkane mixture is at least 30% relative to the total mass of said volatile alkane mixture.

[0220] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 30% and 80% relative to the total mass of said volatile alkane mixture.

[0221] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 30% and 60% relative to the total mass of said volatile alkane mixture.

[0222] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 50% and 80% relative to the total mass of said volatile alkane mixture.

[0223] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 30% and 50% relative to the total mass of said volatile alkane mixture.

[0224] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 40% and 60% relative to the total mass of said volatile alkane mixture.

[0225] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 50% and 70% relative to the total mass of said volatile alkane mixture.

[0226] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 60% and 80% relative to the total mass of said volatile alkane mixture.

[0227] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 0% and 10% relative to the total mass of said volatile alkane mixture.

[0228] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 10% and 20% relative to the total mass of said volatile alkane mixture.

[0229] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 40% and 50% relative to the total mass of said volatile alkane mixture.

[0230] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 60% and 70% relative to the total mass of said volatile alkane mixture.

[0231] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of fraction B of the volatile alkane mixture is between 70% and 80% relative to the total mass of said volatile alkane mixture.

[0232] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is between 0% and 80% relative to the total mass of said volatile alkane mixture.

[0233] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is between 0% and 50% relative to the total mass of said volatile alkane mixture.

[0234] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of at least one linear or branched alkane above C10 of said volatile alkane mixture is between 0% and 30% relative to the total mass of said volatile alkane mixture.

[0235] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is at least 30% relative to the total mass of said volatile alkane mixture.

[0236] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is at least 50% relative to the total mass of said volatile alkane mixture.

[0237] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is between 30% and 80% relative to the total mass of said volatile alkane mixture.

[0238] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is between 30% and 60% relative to the total mass of said volatile alkane mixture.

[0239] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is between 50% and 80% relative to the total mass of said volatile alkane mixture.

[0240] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of at least one linear or branched alkane above C10 of said volatile alkane mixture is between 0% and 20% relative to the total mass of said volatile alkane mixture.

[0241] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of at least one linear or branched alkane above C10 of said volatile alkane mixture is between 10% and 30% relative to the total mass of said volatile alkane mixture.

[0242] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is between 30% and 50% relative to the total mass of said volatile alkane mixture.

[0243] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is between 40% and 60% relative to the total mass of said volatile alkane mixture.

[0244] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is between 50% and 70% relative to the total mass of said volatile alkane mixture.

[0245] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is between 60% and 80% relative to the total mass of said volatile alkane mixture.

[0246] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of at least one linear or branched alkane above C10 of said volatile alkane mixture is between 0% and 10% relative to the total mass of said volatile alkane mixture.

[0247] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is between 10% and 20% relative to the total mass of said volatile alkane mixture.

[0248] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is between 20% and 30% relative to the total mass of said volatile alkane mixture.

[0249] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is between 40% and 50% relative to the total mass of said volatile alkane mixture.

[0250] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is between 60% and 70% relative to the total mass of said volatile alkane mixture.

[0251] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the mass percentage of the at least one linear or branched alkane above C10 of said volatile alkane mixture is between 70% and 80% relative to the total mass of said volatile alkane mixture.

[0252] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 0% and 80% based on the total mass of the volatile alkane mixture.

[0253] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 0% and 50% by weight relative to the total weight of the volatile alkane mixture.

[0254] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 0% and 30% relative to the total mass of the volatile alkane mixture.

[0255] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is at least 10% by weight based on the total weight of the volatile alkane mixture.

[0256] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is at least 30% by weight based on the total weight of the volatile alkane mixture.

[0257] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 10% and 80% by weight relative to the total weight of the volatile alkane mixture.

[0258] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 30% and 80% by weight relative to the total weight of the volatile alkane mixture.

[0259] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 30% and 60% by weight relative to the total weight of the volatile alkane mixture.

[0260] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the mass percentage of the at least one linear or branched alkane above C10, n-dodecane (CAS 112-40-3), of said volatile alkane mixture is between 50% and 80% relative to the total mass of said volatile alkane mixture.

[0261] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 30% and 50% by weight relative to the total weight of the volatile alkane mixture.

[0262] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 40% and 60% by weight relative to the total weight of the volatile alkane mixture.

[0263] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 50% and 70% by weight relative to the total weight of the volatile alkane mixture.

[0264] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 60% and 80% by weight relative to the total weight of the volatile alkane mixture.

[0265] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 0% and 10% relative to the total mass of the volatile alkane mixture.

[0266] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 10% and 20% by weight relative to the total weight of the volatile alkane mixture.

[0267] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 20% and 30% by weight relative to the total weight of the volatile alkane mixture.

[0268] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 40% and 50% by weight relative to the total weight of the volatile alkane mixture.

[0269] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 50% and 60% by weight relative to the total weight of the volatile alkane mixture.

[0270] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 60% and 70% by weight relative to the total weight of the volatile alkane mixture.

[0271] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises at least one volatile alkane mixture, the volatile alkane mixture being selected from the group consisting of n-dodecane (CAS 112-40-3) is between 70% and 80% by weight relative to the total weight of the volatile alkane mixture.

[0272] The invention also relates to a cosmetic composition applicable to the skin comprising a volatile alkane mixture as defined above, wherein the volatile alkane mixture 20 to 100% trimethylheptane (CAS 4032-93-3); 0 to 80% n-dodecane (CAS 112-40-3) The present invention relates to a cosmetic composition applicable to the skin, comprising:

[0273] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 20 to 100% trimethylheptane (CAS 4032-93-3); 0 to 80% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0274] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 20 to 70% trimethylheptane (CAS 4032-93-3); 30 to 80% n-dodecane (CAS 112-40-3) The present invention is characterized by comprising:

[0275] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 20 to 70% trimethylheptane (CAS 4032-93-3); 30 to 80% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0276] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 50 to 100% trimethylheptane (CAS 4032-93-3); 0 to 50% n-dodecane (CAS 112-40-3) The present invention is characterized by comprising:

[0277] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 50 to 70% trimethylheptane (CAS 4032-93-3); 0 to 50% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0278] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 20 to 100% 2,3,6-trimethylheptane (CAS 4032-93-3); 0 to 80% n-dodecane (CAS 112-40-3) The present invention is characterized by comprising:

[0279] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 20 to 100% 2,3,6-trimethylheptane (CAS 4032-93-3); 0 to 80% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0280] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 20 to 70% of 2,3,6-trimethylheptane (CAS 4032-93-3); 30 to 80% n-dodecane (CAS 112-40-3) The present invention is characterized by comprising:

[0281] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 20 to 70% of 2,3,6-trimethylheptane (CAS 4032-93-3); 30 to 80% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0282] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 30% 2,3,6-trimethylheptane (CAS 4032-93-3); 70% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0283] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 35% 2,3,6-trimethylheptane (CAS 4032-93-3); 65% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0284] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 40% 2,3,6-trimethylheptane (CAS 4032-93-3); 60% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0285] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 45% 2,3,6-trimethylheptane (CAS 4032-93-3); 55% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0286] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 60% 2,3,6-trimethylheptane (CAS 4032-93-3), 40% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0287] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 70% 2,3,6-trimethylheptane (CAS 4032-93-3), 30% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0288] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 90% 2,3,6-trimethylheptane (CAS 4032-93-3), 10% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0289] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. It is characterized by being composed of 100% 2,3,6-trimethylheptane (CAS 4032-93-3).

[0290] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 5 to 15% trimethylhexane; 20 to 95% trimethylheptane; 0 to 75% n-dodecane (CAS 112-40-3) The present invention is characterized by comprising:

[0291] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 5 to 15% trimethylhexane; 20 to 95% trimethylheptane; 0 to 75% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0292] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 5 to 10% 2,2,4-trimethylhexane; 20 to 60% 2,3,6-trimethylheptane; 0 to 75% n-dodecane (CAS 112-40-3) The present invention is characterized by comprising:

[0293] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 5 to 10% 2,2,4-trimethylhexane; 20 to 60% 2,3,6-trimethylheptane; 0 to 75% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0294] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 5 to 15% 2,2,4-trimethylhexane (CAS 16747-26-5); 20 to 95% 2,3,6-trimethylheptane (CAS 4032-93-3); 0 to 75% n-dodecane (CAS 112-40-3) The present invention is characterized by comprising:

[0295] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 5 to 15% 2,2,4-trimethylhexane (CAS 16747-26-5); 20 to 95% 2,3,6-trimethylheptane (CAS 4032-93-3); 0 to 75% n-dodecane (CAS 112-40-3) The present invention is characterized in that it comprises:

[0296] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 5 to 10% 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) The present invention is characterized by comprising:

[0297] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 5 to 10% 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) The present invention is characterized in that it comprises:

[0298] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 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) The present invention is characterized in that it comprises:

[0299] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 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) The present invention is characterized in that it comprises:

[0300] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 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) The present invention is characterized in that it comprises:

[0301] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 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) The present invention is characterized in that it comprises:

[0302] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 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) The present invention is characterized in that it comprises:

[0303] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 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) The present invention is characterized in that it comprises:

[0304] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 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) The present invention is characterized in that it comprises:

[0305] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 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) The present invention is characterized in that it comprises:

[0306] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 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) The present invention is characterized in that it comprises:

[0307] In one embodiment, the inventive dermatologically applicable cosmetic composition comprises a mixture of volatile alkanes. 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) The present invention is characterized in that it comprises:

[0308] In one embodiment, the inventive skin applicable cosmetic composition as defined above further comprises a mixture of volatile alkanes, a) from 70 to 99% by weight of a mixture of volatile alkanes consisting of fractions A and B as defined above; a) 1 to 30% by mass of C containing at least one C10 or lower linear alkane Fractionation and The present invention is characterized by comprising:

[0309] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that the volatile alkane mixture comprises at least one C10 or lower linear alkane selected from the group consisting of n-octane, n-nonane, and n-decane.

[0310] In one embodiment, the skin applicable cosmetic composition of the invention is characterized in that at least one of the C10 or lower linear alkanes contained in the volatile alkane mixture is n-decane.

[0311] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of at least one C10 or lower linear alkane is at least 1% relative to the total mass of said mixture of volatile alkanes.

[0312] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of at least one C10 or lower linear alkane is between 1% and 20% relative to the total mass of said mixture of volatile alkanes.

[0313] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of at least one C10 or lower linear alkane is between 10% and 30% relative to the total mass of said mixture of volatile alkanes.

[0314] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of at least one C10 or lower linear alkane is between 5% and 15% relative to the total mass of said mixture of volatile alkanes.

[0315] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of at least one C10 or lower linear alkane is between 10% and 20% relative to the total mass of said mixture of volatile alkanes.

[0316] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the mass percentage of at least one C10 or lower linear alkane is between 20% and 30% relative to the total mass of said mixture of volatile alkanes.

[0317] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the volatile alkane mixture comprising fractions A, B and C as defined above has a flash point of less than 55° C. according to the ASTM D93 standard.

[0318] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the flash point of the mixture of volatile alkanes comprising Fraction A, Fraction B and Fraction C as defined above is between 45° C. and 54° C.

[0319] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the flash point of the mixture of volatile alkanes comprising Fraction A, Fraction B and Fraction C as defined above is between 45° C. and 50° C.

[0320] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the flash point of the mixture of volatile alkanes comprising Fraction A, Fraction B and Fraction C as defined above is between 50°C and 54°C.

[0321] In one embodiment, a volatile alkane mixture comprising the A, B and C fractions as defined above is subjected to carbon-14 ( 14 C) has a percentage of 50% or more.

[0322] In one embodiment, a volatile alkane mixture comprising the A, B and C fractions as defined above is subjected to carbon-14 ( 14 C) has a percentage of 60% or more.

[0323] In one embodiment, a volatile alkane mixture comprising the A, B and C fractions as defined above is subjected to carbon-14 ( 14 C) has a percentage of 75% or more.

[0324] In one embodiment, a volatile alkane mixture comprising the A, B and C fractions as defined above is subjected to carbon-14 ( 14 C) has a percentage of 85% or more. In one embodiment, a volatile alkane mixture comprising the A, B and C fractions as defined above is subjected to carbon-14 ( 14 C) has a percentage of 90% or more.

[0325] In the context of the present application, cosmetic compositions applicable to the skin are characterized in that they comprise at least one non-volatile oil.

[0326] In the present invention, the term "non-volatile oil" means an oil having a flash point above 110° C., measured according to the ASTM D93 standard.

[0327] These oils may be of vegetable, mineral or synthetic origin.

[0328] These non-volatile oils may be hydrocarbon oils, silicone oils, fluorinated oils or fluorosilicone oils.

[0329] In the present invention, the term "hydrocarbon oil" means an oil consisting essentially of carbon atoms, hydrogen atoms and optionally oxygen atoms and / or nitrogen atoms.

[0330] Among these hydrocarbon oils, linear or branched alkanes, (poly)esters and (poly)ethers having 17 to 40 carbon atoms and in particular C2-C 24 Acids (preferably C6-C 20 ) (poly)esters, C6-C 20These include linear or branched alkanes of mineral or synthetic origin, such as triglycerides of fatty acids, vegetable oils, dialkyl carbonates, branched and / or unsaturated fatty acids, branched and / or unsaturated fatty alcohols.

[0331] As regards the non-volatile silicone oils, these are in particular selected from the group comprising phenylated silicone oils, non-volatile polydimethylsiloxanes or derivatives of non-volatile polydimethylsiloxanes, and mixtures thereof.

[0332] In a particularly preferred embodiment of the invention, the inventive cosmetic composition applicable to the skin is characterized in that the non-volatile oil is selected from the group consisting of non-volatile linear or branched alkanes.

[0333] Preferably, the inventive cosmetic composition applicable to the skin is characterized in that the non-volatile oil is selected from the group consisting of non-volatile straight or branched chain alkanes.

[0334] Preferably, the dermatologically applicable cosmetic composition of the invention is characterized in that the non-volatile linear or branched alkanes are selected from the group consisting of linear or branched alkanes having from 17 to 40 carbon atoms.

[0335] The non-volatile oils used in the present invention are of vegetable origin.

[0336] In a preferred embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the non-volatile oil is a vegetable hydrocarbon oil.

[0337] The vegetable hydrocarbon oil is in particular selected from the group comprising wheat germ oil, sunflower oil, grapeseed oil, sesame oil, coconut oil, apricot oil, castor oil, corn oil, avocado oil, soybean oil, shea oil, olive oil, sweet almond oil, cottonseed oil, palm oil, macadamia oil, rapeseed oil, jojoba oil, hazelnut oil, poppy seed oil, alfalfa oil, pumpkin oil, black currant oil, squash oil, evening primrose oil, barley oil and mixtures thereof.

[0338] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of non-volatile oil is at least 5% relative to the total mass of the composition.

[0339] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of non-volatile oil is at least 10% relative to the total mass of the composition.

[0340] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the mass percentage of non-volatile oil is between 5% and 25% relative to the total mass of the composition.

[0341] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the mass percentage of non-volatile oil is between 5% and 15% relative to the total mass of the composition.

[0342] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the mass percentage of non-volatile oil is between 10% and 25% relative to the total mass of the composition.

[0343] In the present invention, the term "glossy oil" means an oil having an intrinsic glossiness. "Glossy oils" are, for example, frequently used in cosmetics to ensure a "shiny effect" when applying the cosmetic composition to keratinous materials.

[0344] In the context of the present application, a cosmetic composition applicable to the skin is characterized in that it comprises at least one glossy oil.

[0345] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the glossy oil is a non-volatile oil.

[0346] In one embodiment, the dermatologically applicable cosmetic composition of the invention comprises a glossy oil comprising: Polymers such as polybutylenes, in particular POLYBUTENE® marketed or produced by the company ATAMAN, hydrogenated polyisobutylenes, polydecanes and hydrogenated polydecanes, polyfarnesenes, vinylpyrrolidone copolymers, in particular vinylpyrrolidone / eicosene copolymers, such as ANTARON V 220® marketed or produced by the company ISP, Esters such as esters of linear fatty acids having a total of more than 30 carbon atoms, aromatic esters, esters of fatty alcohols or branched fatty acids having 20 to 30 carbon atoms; The dilinoleic acid copolymer is characterized in that it is selected from the group including ester copolymers such as dimer dilinoleyl dimer dilinoleate (registered trademark LUSPLAN DD-DA5 and registered trademark LUSPLAN DD-DA7), dilinoleic acid / butanediol copolymer (registered trademark VISCOPLAST 14436H), dilinoleic acid / propanediol copolymer, and mixtures thereof.

[0347] Preferably, the glossy oils used in the context of the present invention are of vegetable origin.

[0348] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the weight percentage of glossy oil is at least 2% relative to the total weight of the composition.

[0349] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the weight percentage of glossy oil is at least 5% relative to the total weight of the composition.

[0350] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the weight percentage of glossy oil is between 2 and 20% relative to the total weight of the composition.

[0351] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the weight percentage of glossy oil is between 5% and 15% relative to the total weight of the composition.

[0352] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the weight percentage of glossy oil is between 10% and 20% relative to the total weight of the composition.

[0353] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the weight percentage of glossy oil is between 2 and 10% relative to the total weight of the composition.

[0354] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the weight percentage of glossy oil is between 5% and 10% relative to the total weight of the composition.

[0355] These ingredients play an important role in the formulation as they help balance the cosmetic formulation applicable to the skin with respect to creaminess during use.

[0356] In the present invention, the term "pasty fatty substance" means a lipophilic fatty compound having a liquid portion and a solid portion at room temperature (25° C.) and having a reversible solid / liquid state change.

[0357] In other words, the melting point of the pasty fat is below 25°C.

[0358] In the context of the present application, a cosmetic composition applicable to the skin is further characterized in that it comprises at least one pasty fatty substance.

[0359] In one embodiment, the inventive cosmetic composition applicable to the skin is characterized in that the pasty fatty substances are selected from the group comprising synthetic pasty fatty substances, animal pasty fatty substances, vegetable pasty fatty substances and mixtures thereof.

[0360] In one embodiment, the inventive cosmetic composition applicable to the skin is characterized in that the synthetic pasty fatty substance is selected from the group comprising polyol ethers, petrolatum, vinyl polymers, pentaerythritol esters, polyesters and mixtures thereof.

[0361] In one embodiment, the inventive cosmetic composition applicable to the skin is characterized in that the animal pasty fatty substance is lanolin.

[0362] Preferably, the inventive cosmetic composition applicable to the skin is characterized in that the pasty fatty substance is a vegetable pasty fatty substance.

[0363] In one embodiment, the inventive cosmetic composition applicable to the skin is characterized in that the plant pasty fatty substance is selected from the group comprising plant butters (avocado butter, shea butter), fatty acid triglycerides, and their derivatives and mixtures thereof.

[0364] In one embodiment, the inventive cosmetic composition applicable to the skin is characterized in that the percentage by weight of pasty fatty substances is between 0 and 20% relative to the total weight of the composition.

[0365] In one embodiment, the inventive cosmetic composition applicable to the skin is characterized in that the percentage by weight of pasty fatty substances is between 0 and 15% relative to the total weight of the composition.

[0366] In one embodiment, the inventive cosmetic composition applicable to the skin is characterized in that the percentage by weight of pasty fatty substances is between 0 and 10% relative to the total weight of the composition.

[0367] In one embodiment, the inventive cosmetic composition applicable to the skin is characterized in that the percentage by weight of pasty fatty substances is between 0 and 5% relative to the total weight of the composition.

[0368] In the present invention, the term gelling agent refers to compounds that constitute an excellent textural agent for balancing the formulation in terms of smoothness and adhesion.

[0369] Additionally, certain glossy oils such as the compounds sold under the names VISCOPLAST® 14436H, LUSPLAN® DD-DA5 and LUSPLAN® DD-DA7 may also be used as gelling agents.

[0370] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that it comprises at least one gelling agent.

[0371] In one embodiment, the inventive skin applicable cosmetic composition is characterized in that the gelling agent is selected from the group comprising organic gelling agents, mineral gelling agents, polymeric gelling agents and mixtures thereof.

[0372] Preferably, the dermatologically applicable cosmetic composition of the invention is characterized in that the gelling agent is of vegetable origin.

[0373] In one embodiment, the skin applicable cosmetic composition of the present invention is characterized in that the organogelling agent is selected from the group comprising ethylcellulose and its derivatives, rosin-derived resins, dextrin esters, fatty acid esters and mixtures thereof.

[0374] In one embodiment, the inventive cosmetic composition applicable to the skin is characterized in that the mineral gelling agent is selected from the group comprising hectorite and its derivatives, pyrogenic silica and its derivatives, and mixtures thereof.

[0375] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the polymeric gelling agent is selected from the group comprising organopolysiloxanes and derivatives thereof, dimethicone copolymers and derivatives thereof, copolymer mixtures in isododecane such as polystyrene / polyisoprene copolymers, polystyrene / polybutadiene copolymers, polystyrene / copoly(ethylene-propylene) copolymers, polystyrene / copoly(ethylene-butylene) copolymers, ethylene / propylene copolymers or butylene / ethylene / styrene, polyesters and derivatives thereof, polyamide resins and mixtures thereof.

[0376] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the gelling agent is dextrin palmitate or one of its derivatives.

[0377] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the gelling agent is a modified hectorite of the trademark BENTONE GEL ISD Type V or one of its equivalents.

[0378] In one embodiment, the dermatologically applicable cosmetic composition of 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.

[0379] In one embodiment, the inventive cosmetic composition applicable to the skin is characterized in that the gelling agent is a modified hectorite of disteardimonium hectorite type associated with triethyl citrate and a mixture of volatile alkanes as defined in the present invention.

[0380] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the gelling agent is a mixture of copolymers in isododecane, such as ethylene / propylene copolymers.

[0381] In one embodiment, the inventive cosmetic composition for application to the skin is characterized in that the gelling agent is a combination of dimethicone polymer and mixture of alkanes sold under the name VEGELIGHT SILK SI 118, registered trademark of the company BIOSYNTHIS, or its equivalent.

[0382] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of the gelling agent is at least 5% relative to the total mass of the composition.

[0383] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of the gelling agent is at least 15% relative to the total mass of the composition.

[0384] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the mass percentage of gelling agent is between 5% and 30% relative to the total mass of the composition.

[0385] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the mass percentage of gelling agent is between 5% and 20% relative to the total mass of the composition.

[0386] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of gelling agent is between 15% and 30% relative to the total mass of the composition.

[0387] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the mass percentage of gelling agent is between 5% and 15% relative to the total mass of the composition.

[0388] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the mass percentage of gelling agent is between 15% and 25% relative to the total mass of the composition.

[0389] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of gelling agent is between 20% and 30% relative to the total mass of the composition.

[0390] In the present invention, the term "film-forming polymer" means, within the framework of the present invention, a polymer capable of forming a microscopically continuous film, in particular on the skin.

[0391] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that it comprises at least one film-forming polymer.

[0392] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the film-forming polymer is selected from the group comprising acrylic polymers, polyurethanes, polyesters, polyamides, silicone polymers.

[0393] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the film-forming polymer is trimethylsiloxysilicate, commercially available under the name TMS 803.

[0394] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the weight percentage of the film-forming polymer is at least 1% relative to the total weight of the composition.

[0395] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the weight percentage of the film-forming polymer is at least 10% relative to the total weight of the composition.

[0396] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the weight percentage of film-forming polymer is between 1 and 25% relative to the total weight of the composition.

[0397] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the weight percentage of film-forming polymer is between 10% and 25% relative to the total weight of the composition.

[0398] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the weight percentage of film-forming polymer is between 1 and 10% relative to the total weight of the composition.

[0399] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the weight percentage of film-forming polymer is between 10% and 20% relative to the total weight of the composition.

[0400] Waxes play an important role in the design of cosmetic products that can be applied to the skin, since they influence certain essential criteria such as the texture, appearance and / or solidity of the product.

[0401] In the present application, the term "wax" refers to a lipophilic compound that has a reversible solid / liquid state change, in other words a compound that is solid at room temperature (25°C) and has a melting point above 30°C.

[0402] Preferably, in the present invention, the wax used has a melting point of 50° C. or higher.

[0403] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that it comprises at least one wax.

[0404] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the wax is a synthetic wax, a mineral wax, a vegetable wax or an animal wax.

[0405] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the wax is a mineral or synthetic wax selected from the group comprising microcrystalline waxes, paraffin waxes, ozokerite, polyethylene waxes, silicone waxes, fluorinated waxes.

[0406] "Vegetable wax" refers to a composition comprising at least one partially or fully 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 unsaponifiable matter.

[0407] Preferably, within the meaning of the present invention, the waxes used are vegetable waxes.

[0408] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the wax is a vegetable or animal wax selected 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.

[0409] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the percentage by weight of wax is at least 2% relative to the total weight of the composition.

[0410] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the percentage by weight of wax is at least 5% relative to the total weight of the composition.

[0411] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the percentage by weight of wax is between 2 and 20% relative to the total weight of the composition.

[0412] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the percentage by weight of wax is between 5 and 15% relative to the total weight of the composition.

[0413] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the percentage by weight of wax is between 2 and 10% relative to the total weight of the composition.

[0414] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the percentage by weight of wax is between 5% and 10% relative to the total weight of the composition.

[0415] In the present invention, surfactants are compounds that modify the surface tension between two surfaces or phases. Generally, these compounds are amphiphilic molecules that are capable of solubilizing the two immiscible phases of a composition.

[0416] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that it comprises at least one surfactant.

[0417] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the at least one surfactant is selected from the group comprising nonionic, anionic and amphoteric surfactants.

[0418] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one surfactant is a non-ionic surfactant.

[0419] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the nonionic surfactant is selected from the group consisting of polyoxyalkylene alkyl ethers, glycerin alkyl ethers, glycerin fatty acid esters, polyglycerin fatty acid esters, sorbitan fatty acid esters, derivatives thereof, and mixtures thereof. In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one surfactant is an anionic surfactant.

[0420] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the anionic surfactant is selected from the group consisting of alkyl phosphates, polyoxyalkylene alkyl ether phosphates, sulfonates, alkyl sulfates, polyaspartates, derivatives thereof, and mixtures thereof.

[0421] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the at least one surfactant is an amphoteric surfactant.

[0422] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the weight percentage of the at least one surfactant is at least 0.1% relative to the total weight of the composition.

[0423] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the weight percentage of the at least one surfactant is at least 5% relative to the total weight of the composition.

[0424] In one embodiment, the inventive dermatological cosmetic composition 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.

[0425] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the weight percentage of the at least one surfactant is between 5% and 15% relative to the total weight of the composition.

[0426] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that it further comprises at least one antioxidant.

[0427] In one embodiment, the inventive cosmetic composition applicable to the skin is characterized in that the antioxidant is selected from the group comprising phenolic antioxidants of BHA, BHT, DBPC, gallate type, so-called natural antioxidants such as dl-α-tocopherol or its derivatives, plant extracts, dibasic lipopeptides such as lysine or arginine, and mixtures thereof.

[0428] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the weight percentage of antioxidants is at least 0.01% relative to the total weight of the composition.

[0429] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the weight percentage of antioxidants is at least 0.1% relative to the total weight of the composition.

[0430] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the weight percentage of antioxidants is between 0.01% and 2% relative to the total weight of the composition.

[0431] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the weight percentage of antioxidants is between 0.01% and 1% relative to the total weight of the composition.

[0432] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the weight percentage of antioxidants is between 0.1 and 1% relative to the total weight of the composition.

[0433] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the weight percentage of antioxidants is between 0.01% and 0.1% relative to the total weight of the composition.

[0434] This part is essential for coloring. The pigments used can be synthetic, mineral or plant-based. The dosage of these is also delicate.

[0435] In one embodiment, the dermally applicable cosmetic composition of the invention is characterized in that it comprises at least one pigment moiety.

[0436] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that the color moiety is selected from the group comprising water soluble dyes, liposoluble dyes, pigments, nacres, glitters and mixtures thereof.

[0437] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the pigment portion comprises a pigment selected from the group comprising organic pigments such as fixed or precipitated pigments, mineral pigments such as titanium dioxide or iron oxide, sodium thiosulfate aluminosilicate, chromium oxide, bismuth oxychloride, copper phthalocyanine, metal-free phthalocyanines, chlorinated copper phthalocyanines.

[0438] Thus, the percentage of titanium oxide determines the coverage and opacity of the film.

[0439] The color and chrominance are determined by the use of lacquers or precipitated pigments.

[0440] By way of example, other types of pigments can be used, such as titanic micas, borosilicates and their derivatives, mica, silica, and the like.

[0441] Mineral pigments are used to give subtle variations in shade, while compounds such as bismuth oxychloride can be used to give specific effects (metallic, shimmery effects, etc.).

[0442] In one embodiment, the cutaneously applicable cosmetic composition of the invention is characterized in that the pigment moiety comprises a dye derived from a plant selected from fruit and / or plant extracts containing dyes.

[0443] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of the pigment portion is at least 0.01% relative to the total mass of the composition.

[0444] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the weight percentage of the pigment portion is at least 1% relative to the total weight of the composition.

[0445] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of the pigment portion is at least 5% relative to the total mass of the composition.

[0446] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the mass percentage of the pigment portion is between 0.01% and 20% relative to the total mass of the composition.

[0447] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of the pigment portion is between 1% and 20% relative to the total mass of the composition.

[0448] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of the pigment portion is between 5% and 20% relative to the total mass of the composition.

[0449] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the mass percentage of the pigment portion is between 1% and 15% relative to the total mass of the composition.

[0450] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of the pigment portion is between 5% and 15% relative to the total mass of the composition.

[0451] In one embodiment, the inventive dermatological cosmetic composition is characterized in that the mass percentage of the pigment portion is between 0.01% and 5% relative to the total mass of the composition.

[0452] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of the pigment portion is between 5% and 10% relative to the total mass of the composition.

[0453] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the mass percentage of the pigment portion is between 10% and 15% relative to the total mass of the composition.

[0454] In one embodiment, the dermatologically applicable cosmetic composition of the invention has a carbon-14( 14 C) characterized by having a naturalness index of 80% or more.

[0455] In one embodiment, the dermatologically applicable cosmetic composition of the invention has a carbon-14( 14 C) characterized by having a naturalness index of 85% or more.

[0456] In one embodiment, the dermatologically applicable cosmetic composition of the invention has a carbon-14( 14 C) characterized by having a naturalness index of 90% or more.

[0457] In one embodiment, the dermatologically applicable cosmetic composition of the invention has a carbon-14( 14 C) characterized by having a naturalness index of 95% or more.

[0458] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that at least 50% by weight of the ingredients, relative to the total weight of the composition, are of natural origin.

[0459] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that at least 75% by weight of the ingredients, relative to the total weight of the composition, are of natural origin.

[0460] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that at least 90% by weight of the ingredients, relative to the total weight of the composition, are of natural origin.

[0461] In one embodiment, the inventive dermatological cosmetic composition is characterized in that 50% by weight of the ingredients, relative to the total weight of the composition, are of natural origin.

[0462] In one embodiment, the inventive dermatological cosmetic composition is characterized in that 75% by weight of the ingredients, relative to the total weight of the composition, are of natural origin.

[0463] In one embodiment, the inventive dermatological cosmetic composition is characterized in that 90% by weight of the ingredients, relative to the total weight of the composition, are of natural origin.

[0464] By "naturally occurring" ingredients is meant ingredients obtained directly from the earth, soil, water, air, or plants, optionally through one or more physical processes such as grinding, refining, distilling, purifying, filtering, and the like.

[0465] By "naturally occurring" ingredient is meant an ingredient that has been subjected to one or more chemical or industrial processes resulting in modifications that do not affect the essential properties of the ingredient and / or an ingredient that comprises primarily naturally occurring constituents with or without such modifications.

[0466] Non-limiting examples of further chemical or industrial treatments resulting in modifications that do not affect the essential properties of the natural compound include treatments approved by certification bodies such as Ecocert or COSMOS.

[0467] In the present invention, the term "synthetic or artificial ingredients" refers to ingredients that do not meet the above definition of natural or naturally occurring ingredients.

[0468] In one embodiment, the dermal cosmetic composition of the invention is characterized in that after application of the composition to the skin, the drying time at 20° C. is 5 minutes or less.

[0469] In one embodiment, the dermal cosmetic composition of the invention is characterized in that after application of the composition to the skin, the drying time at 20° C. is 4 minutes 30 seconds or less.

[0470] In one embodiment, the dermal cosmetic composition of the invention is characterized in that after application of the composition to the skin, the drying time at 20° C. is 4 minutes or less.

[0471] In one embodiment, the dermal cosmetic composition of the invention is characterized in that the drying time at 20° C. upon application of the composition to the skin is 4 minutes.

[0472] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that it is in a solid powder, cast or compact form, or in the form of a stick.

[0473] In one embodiment, the dermatologically applicable cosmetic compositions of the invention are characterized in that they are in the form of solid powders, such as powders.

[0474] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that it is in the form of a solid composition, for example in the form of a stick.

[0475] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that it is in the form of a paste or a liquid fluid.

[0476] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that it is in the form of a soft paste-like, ointment-like, cream-like solid or liquid ointment.

[0477] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that it is in the form of an O / W, W / O, or a multiphase emulsion of the O / W / O or W / O / O type.

[0478] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that it is in the form of an anhydrous composition.

[0479] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that the anhydrous composition comprises an aqueous phase whose weight percentage is less than or equal to 5% relative to the total weight of the composition.

[0480] In one embodiment, the inventive dermatological cosmetic composition is characterized in that it is in the form of a foundation.

[0481] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that it is in the form of a primer or a makeup base.

[0482] In one embodiment, the dermatologically applicable cosmetic composition of the invention is characterized in that it is in the form of an eye shadow.

[0483] In one embodiment, the inventive, dermatologically applicable cosmetic composition is characterized in that it is in the form of a blush.

[0484] In one embodiment, the inventive dermatologically applicable cosmetic composition is characterized in that it is in the form of a makeup remover formulation.

[0485] The invention also relates to a method for preparing the skin applicable cosmetic composition of the present invention, comprising the steps of: a) Guerbet synthesis from isoamyl alcohol (CAS 123-51-3) to produce the C10 Guerbet alcohol, 2-isopropyl-5-methylhexan-1-ol (CAS 2051-33-4). b) mixing the product produced in step 1) with at least one greater than C10 bio-based alcohol to produce a bio-based alcohol mixture. c) The bio-derived alcohol mixture produced in step 2) is dehydrated and then hydrogenated to obtain a volatile alkane mixture consisting of 2,3,6-trimethylheptane (CAS 4032-93-3) and alkanes above C10. d) adding no alkanes or one or more alkanes to the volatile alkane mixture. e) combining this mixture of volatile alkanes with at least one compound selected from non-volatile oils, glossy oils, pasty fatty substances, gelling agents, film-forming polymers, waxes, pigments, dyes and mixtures thereof.

[0486] More particularly, the invention also relates to a method for preparing the skin applicable cosmetic composition of the present invention, comprising the steps of: a) Guerbet synthesis from isoamyl alcohol (CAS 123-51-3) to produce the C10 Guerbet alcohol, 2-isopropyl-5-methylhexan-1-ol (CAS 2051-33-4). b) Mixing the product produced in step 1) with bio-based n-dodecanol to produce a bio-based alcohol mixture. c) The mixture of bio-derived alcohols produced in step 2) is dehydrated and then hydrogenated to obtain a mixture of volatile alkanes consisting of 2,3,6-trimethylheptane (CAS 4032-93-3) and n-dodecane (CAS 112-40-3). d) adding no alkanes or one or more alkanes to the volatile alkane mixture. e) combining this mixture of volatile alkanes with at least one compound selected from non-volatile oils, glossy oils, pasty fatty substances, gelling agents, film-forming polymers, waxes, pigments, dyes and mixtures thereof.

[0487] In one embodiment, the method for preparing a cosmetic composition applicable to the skin as defined according to the present invention is characterized in that step 1 of the method, i.e. the Guerbet synthesis, is carried out from a plant, bacterial or animal source.

[0488] In one embodiment, the method for preparing a cosmetic composition applicable to the skin as defined according to the present invention is characterized in that step 1 of the method, i.e. the Guerbet synthesis, is carried out using a base selected from the group consisting of KOH, NaOH, NaOCH3, KOCH3.

[0489] In one embodiment, the method for preparing a cosmetic composition applicable to the skin defined according to the invention is characterized in that step 1 of the method, i.e. the Guerbet synthesis, is carried out using a catalyst selected from the group comprising at least one metal from group VIII, such as copper derivatives, such as PriCat Cu 50 / 8, nickel, palladium, platinum, their derivatives and mixtures thereof.

[0490] In one embodiment, the method for preparing a cosmetic composition applicable to the skin as defined according to the present invention is characterized in that step 1 of the method, i.e. the Guerbet synthesis, is carried out at a temperature between 150° C. and 300° C.

[0491] In one embodiment, the method for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the method, i.e. the Guerbet synthesis, is carried out at a pressure between 1 bar and 15 bar.

[0492] In one embodiment, the method for preparing a cosmetic composition applicable to the skin as defined according to the present invention is characterized in that step 1 of the method, i.e. the Guerbet synthesis, is carried out for a period of between 10 hours and 24 hours.

[0493] In one embodiment, the method for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the method, i.e., obtaining a mass percentage of C10 branched alcohols of 75% or more by Guerbet synthesis, is

[0494] In one embodiment, the method for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the method, i.e., obtaining a mass percentage of C10 branched alcohols of 90% or more by Guerbet synthesis, is performed.

[0495] In one embodiment, the process for the preparation of a skin applicable cosmetic composition defined according to the present invention is characterized in that step 1 of the process further comprises a purification step by distillation to remove impurities.

[0496] In one embodiment, the method for preparing a cosmetic composition applicable to the skin as defined according to the present invention comprises the steps of: in step 1 of the method, i.e., obtaining a carbon-14 ( 14 C) is characterized in that a C10 branched chain alcohol having a percentage of 75% or more can be obtained.

[0497] In one embodiment, the method for preparing a cosmetic composition applicable to the skin as defined according to the present invention comprises the steps of: in step 1 of the method, i.e., obtaining a carbon-14 ( 14 C) is characterized in that a C10 branched chain alcohol having a percentage of 90% or more can be obtained.

[0498] In one embodiment, the method for preparing a cosmetic composition applicable to the skin as defined according to the present invention comprises the steps of: in step 1 of the method, i.e., obtaining a carbon-14 ( 14 C) is characterized in that the percentage of C10 branched chain alcohol is 100%.

[0499] In one embodiment, the method for preparing a cosmetic composition applicable to the skin as defined according to the present invention is characterized in that in step 2 of the method, at least one C12 or higher alcohol of biological origin is added selected from the group consisting of n-dodecanol, n-tetradecanol and mixtures thereof.

[0500] In one embodiment, the process for the preparation of a skin applicable cosmetic composition defined according to the present invention is characterized in that step 3 of the process consists of a dehydration step followed by a hydrogenation step.

[0501] 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 selected from the group consisting of alumina and its derivatives.

[0502] In one embodiment, the method 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 method is carried out using a catalytic support selected from the group consisting of silica wool and its derivatives.

[0503] In one embodiment, the method 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 method is carried out at a temperature between 200°C and 380°C.

[0504] In one embodiment, the process for the preparation of a skin applicable cosmetic composition 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.

[0505] In one embodiment, the process for preparing a skin applicable cosmetic composition defined according to the present invention is characterized in that the dehydration step in step 3 of the process results in a conversion to C10 branched alkene of 95% or more.

[0506] In one embodiment, the method for preparing a skin applicable cosmetic composition defined according to the present invention is characterized in that the dehydration step in step 3 of the method results in a conversion of 99% or more to C10 branched alkenes.

[0507] In one embodiment, the process for preparing a skin applicable cosmetic composition defined according to the present invention is characterized in that the trimethylheptane obtained in step 3 of the process, the hydrogenation step, is 2,3,6-trimethylheptane.

[0508] In one embodiment, the process for the preparation of 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 of group VIII, such as palladium, nickel, platinum, their derivatives and mixtures thereof.

[0509] In one embodiment, the process for the preparation of 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 selected from the group consisting of silica wool and its derivatives.

[0510] In one embodiment, the process for the preparation of a skin applicable cosmetic composition defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out at a temperature between 100° C. and 250° C.

[0511] In one embodiment, the process for the preparation of a skin applicable cosmetic composition 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.

[0512] In one embodiment, the process for the preparation of a skin applicable cosmetic composition as defined according to the present invention is characterized in that the hydrogenation step in step 3 of the process is preceded by an inerting step of the reactor with 15 bar of nitrogen.

[0513] In one embodiment, the process for the preparation of a skin applicable cosmetic composition as defined according to the present invention is characterized in that the reactor is subjected to three inerting steps with 5 bar of nitrogen prior to the hydrogenation step in step 3 of the process.

[0514] In one embodiment, the process for the preparation of a skin applicable cosmetic composition defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out by adding between 2 and 15 bar of hydrogen to the reactor.

[0515] In one embodiment, the process for the preparation of a skin applicable cosmetic composition 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 bar of hydrogen to the reactor.

[0516] In one embodiment, the process for the preparation of a skin applicable cosmetic composition 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 bar of hydrogen to the reactor.

[0517] In one embodiment, the process for the preparation of a skin applicable cosmetic composition defined according to the present invention is characterized in that the hydrogenation step in step 3 of the process is carried out for a period of 3 to 12 hours.

[0518] In one embodiment, the process for the preparation of a skin applicable cosmetic composition defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out for 5 hours.

[0519] In one embodiment, the process for the preparation of a skin applicable cosmetic composition defined according to the present invention is characterized in that the hydrogenation step in step 3 of the process results in a conversion of 95% or more to 2,3,6-trimethylheptane.

[0520] In one embodiment, the process for the preparation of a skin applicable cosmetic composition defined according to the present invention is characterized in that the hydrogenation step in step 3 of the process results in a conversion of 99% or more to 2,3,6-trimethylheptane.

[0521] In one embodiment, the process for the preparation of a cosmetic composition applicable to the skin as defined according to the present invention is characterized in that the process results in a mixture of volatile alkanes as defined according to the present invention.

[0522] Surprisingly, the process for the preparation of a cosmetic composition applicable to the skin as defined according to the invention is characterized in that the process makes it possible to obtain a deodorized or odorless mixture of volatile alkanes.

[0523] This organoleptic property lends itself to use in cosmetic compositions.

[0524] In one embodiment, the method for preparing a cosmetic composition applicable to the skin as defined according to the present invention is characterized in that step 4 of the method makes it possible to obtain a volatile alkane mixture as defined according to the present invention.

[0525] In one embodiment, the method for preparing a cosmetic composition applicable to the skin as defined in accordance with the present invention comprises the step of: 14 C) is carbon-14 ( 14 C) is characterized in that a volatile alkane mixture containing 75% or more of the volatile alkane is obtained.

[0526] In one embodiment, the method for preparing a cosmetic composition applicable to the skin as defined in accordance with the present invention comprises the step of: 14 C) is characterized in that a volatile alkane mixture having a percentage of 90% or more can be obtained.

[0527] In one embodiment, the method for preparing a cosmetic composition applicable to the skin as defined in accordance with the present invention comprises the step of: 14C) is characterized in that a volatile alkane mixture having a percentage of 100% can be obtained.

[0528] In one embodiment, the method for preparing a cosmetic composition applicable to the skin as defined in accordance with the present invention is characterized in that step 5 of the method makes it possible to obtain a cosmetic composition applicable to the skin comprising a mixture of volatile alkanes as defined in accordance with the present invention. Working Example

[0529] In the following examples, the foundation was formulated as follows:

[0530] 1) The second phase was dispersed into the first phase in a Turax with progressive stirring up to 12000 rpm for 2 minutes.

[0531] 2) Phase 3 was added to phases 1 and 2. 3) Phase 4 was added to the mixture of phases 1, 2 and 3.

[0532] The mixture of phases 1, 2, 3 and 4 constitutes the oil phase of the cosmetic formulation.

[0533] Phases 5 and 6 (water phases) were then added to the mixture of phases 1, 2, 3 and 4 to create an emulsion. The resulting mixture was gradually stirred in a Turax up to 12000 rpm for 2 minutes.

[0534] Finally, phase 7 was dispersed with progressive stirring in a Turax up to 12000 rpm for 2 minutes. Example 1: Composition and properties of a benchmark foundation [Table 1] Drying time of standard foundation on skin

[0535] After application to the skin of a user panel, a test to check for dryness using a nonwoven tissue from tO to tx and a nonwoven tissue marking test were performed every 30 seconds to measure the dry time at 20° C. The formulation was considered dry when there was no transfer.

[0536] The baseline foundation of Example 1 had a drying time on the skin of 3 minutes 30 seconds.

[0537] This drying time was satisfactory for a foundation formulation. Application characteristics of standard foundation

[0538] To validate this study, a benchmark foundation formulation was tested on a panel of users.

[0539] According to this study, the benchmark foundation formula was deemed to be a long-wearing formula with satisfactory staying power.

[0540] In terms of other application properties, the benchmark foundation was found to be easy to apply, water resistant and of satisfactory colour by a user panel. Example 2: Composition and properties of a foundation containing a prior art volatile alkane mixture

[0541] In the composition of Example 2 of the foundation containing the prior art volatile alkane mixture of patent application EP 3 773 432 A1, the isododecane (CAS 13475-82-6), a volatile solvent, contained in the first phase of the reference formulation was replaced with the prior art volatile alkane mixture.

[0542] In the examples, the volatile solvent is a mixture of volatile 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 of prior art foundations on skin

[0543] The prior art foundation of Example 2 had a dry time on the skin of 7 minutes.

[0544] This drying time was not satisfactory for a foundation formulation within the meaning of the present invention. Application characteristics of conventional foundations

[0545] To validate this study, the foundation formulation of Example 2 was tested on a panel of users.

[0546] The study found that prior art foundation formulations had adequate staying power but were sticky.

[0547] In terms of other application properties, a user panel survey showed that the conventional foundation rated itself less satisfactorily in terms of application properties compared to the benchmark foundation. Example 3: Composition and properties of the inventive foundation

[0548] In the composition of Example 3 of the foundation of the present invention, the isododecane (CAS 13475-82-6) in the first phase of the baseline formulation was replaced with the volatile alkane mixture of the present invention.

[0549] For this example, the volatile alkane mixture consisted 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 of Example 3

[0550] The inventive foundation of Example 3 had a dry time on skin of 4 minutes.

[0551] This drying time was satisfactory for a foundation formulation within the meaning of the present invention. Application characteristics of the foundation of Example 3

[0552] To validate this study, foundation formulations were tested on a panel of users.

[0553] This investigation showed that the foundation formulation of the invention had satisfactory staying power within the meaning of the invention.

[0554] With regard to other application properties, the foundation within the meaning of the invention had similar properties to those of the reference foundation (easy to apply, water resistant, with a pleasing color) as determined by a user panel. Example 4: Composition and properties of the foundation of the present invention

[0555] In the composition of Example 4 of the foundation of the present invention, the isododecane in the first phase of the base formulation was replaced with the volatile alkane mixture of the present invention.

[0556] In this example, the volatile alkane mixture consists of 5% 2,2,4-trimethylheptane (CAS 16747-26-5), 44% 2,3,6-trimethylheptane (CAS 4032-93-3) and 51% n-dodecane (CAS 112-40-3). Drying time of the foundation of Example 4 on the skin

[0557] The drying time on the skin of the inventive foundation of Example 4 was 3 minutes 30 seconds.

[0558] This drying time was satisfactory for a foundation formulation within the meaning of the present invention. Application characteristics of the foundation of Example 4

[0559] To validate this study, foundation formulations were tested on a panel of users. This investigation showed that the foundation formulation of the invention had satisfactory staying power within the meaning of the invention.

[0560] With regard to other application properties, the foundation within the meaning of the invention had similar properties to those of the reference foundation (easy to apply, water resistant, with a pleasing color) as determined by a user panel. Example 5: Composition and properties of the foundation of the present invention

[0561] In the composition of Example 5 of the foundation of the present invention, the isododecane (CAS 13475-82-6) in the first phase of the baseline formulation was replaced with the volatile alkane mixture of the present invention.

[0562] In this example, the volatile alkane mixture consists 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 of Example 5

[0563] The drying time on the skin of the inventive foundation of Example 5 was 3 minutes 45 seconds.

[0564] This drying time was satisfactory for a foundation formulation within the meaning of the present invention. Application characteristics of the foundation of Example 5

[0565] To validate this study, foundation formulations were tested on a panel of users. This investigation showed that the foundation formulation of the invention had satisfactory staying power within the meaning of the invention.

[0566] With regard to other application properties, the foundation within the meaning of the invention had similar properties to those of the reference foundation (easy to apply, water resistant, with a pleasing color) as determined by a user panel.

[0567] Example 6: Biodegradability of Volatile Alkane Mixtures for Use in Skin-Applicable Cosmetic Compositions of the Invention

[0568] The biodegradability of the volatile alkane mixtures used in the inventive dermatological cosmetic compositions was measured according to OECD method 301F. For comparison, the decomposition of isododecane (CAS 13475-82-6) was also measured by the same method. [Table 2]

[0569] The OECD 301F method allows the ease of biodegradation of a substance to be characterized by a manometric respirometry test.

[0570] The mixture of volatile alkanes tested was 58% biodegradable according to the OECD 301F method, whereas isododecane (CAS 13475-82-6) was not biodegradable according to this method.

Claims

1. 1. A cosmetic composition applicable to the skin, comprising: Contains a mixture of volatile alkanes, The volatile alkane mixture is a) 20 to 100% of fraction A containing at least one branched alkane having 10 or less carbon atoms; b) 0 to 80% of fraction B containing at least one linear or branched alkane having more than 10 carbon atoms; The volatile alkane mixture has a flash point of less than 55° C. as measured according to the ASTM D93 standard and accounts for 10% by weight or more of the total weight of the composition. A cosmetic composition that can be applied to the skin.

2. 1. A cosmetic composition applicable to the skin, comprising: Contains a mixture of volatile alkanes, The volatile alkane mixture is a) 20 to 100% of fraction A containing at least one branched alkane having 10 or less carbon atoms; b) 0 to 80% of fraction B containing at least one linear or branched alkane having more than 10 carbon atoms; The volatile alkane mixture has a flash point of less than 55° C. as measured according to the ASTM D93 standard and accounts for 25% by weight or more of the total weight of the composition. A cosmetic composition that can be applied to the skin.

3. The volatile alkane mixture has a carbon-14 ( １４ C) in an amount of 85% or more, A cosmetic composition applicable to the skin according to claim 1 or 2.

4. The volatile alkane mixture is obtained from a raw material of plant, bacterial or animal origin. A cosmetic composition applicable to the skin according to any one of claims 1 to 3.

5. The volatile alkane mixture is characterized in that it has a biodegradability of at least 50% according to OECD 301F method. A cosmetic composition applicable to the skin according to any one of claims 1 to 4.

6. In the volatile alkane mixture, the at least one branched alkane having 10 or less carbon atoms is selected from the group consisting of branched alkanes having 9 carbon atoms, branched alkanes having 10 carbon atoms, or mixtures thereof. A cosmetic composition applicable to the skin according to any one of claims 1 to 5.

7. The at least one branched alkane having 10 or less carbon atoms in the volatile alkane mixture is a branched alkane having 10 carbon atoms. A cosmetic composition applicable to the skin according to any one of claims 1 to 6.

8. The volatile alkane mixture is characterized in that at least one branched alkane having 10 or less carbon atoms is 2,3,6-trimethylheptane (CAS 4032-93-3). A cosmetic composition applicable to the skin according to any one of claims 1 to 7.

9. The mass percentage of the A fraction of the volatile alkane mixture is between 51% and 100% relative to the total mass of the volatile alkane mixture. A cosmetic composition applicable to the skin according to any one of claims 1 to 8.

10. In the volatile alkane mixture, the at least one linear or branched alkane having more than 10 carbon atoms is selected from the group consisting of alkanes having 11 carbon atoms, 12 carbon atoms, 13 carbon atoms, 14 carbon atoms, 15 carbon atoms, and 16 carbon atoms, or mixtures thereof. A cosmetic composition applicable to the skin according to any one of claims 1 to 9.

11. In the volatile alkane mixture, at least one linear or branched alkane having more than 10 carbon atoms is n-dodecane (CAS 112-40-3); A cosmetic composition applicable to the skin according to any one of claims 1 to 10.

12. The mass percentage of at least one linear or branched alkane having more than 10 carbon atoms in the volatile alkane mixture is between 0% and 50% relative to the total mass of the volatile alkane mixture. A cosmetic composition applicable to the skin according to any one of claims 1 to 11.

13. The volatile alkane mixture is characterized in that it contains 2,3,6-trimethylheptane (CAS 4032-93-3) and n-dodecane (CAS 112-40-3); A cosmetic composition applicable to the skin according to any one of claims 1 to 12.

14. The composition is characterized in that it contains at least one non-volatile oil having a flash point of more than 110°C as measured according to the ASTM D93 standard; A cosmetic composition applicable to the skin according to any one of claims 1 to 13.

15. At least 75% by weight of the composition is derived from natural products. A cosmetic composition applicable to the skin according to any one of claims 1 to 14.

16. At least 85% by weight of the composition is derived from natural products. A cosmetic composition applicable to the skin according to any one of claims 1 to 15.

17. At least 90% by weight of the composition is derived from natural products. A cosmetic composition applicable to the skin according to any one of claims 1 to 16.

18. The composition is characterized in that the drying time at 20°C after application to the skin is 5 minutes or less. A cosmetic composition applicable to the skin according to any one of claims 1 to 17.

19. A method for preparing the skin applicable cosmetic composition of the present invention, comprising the steps of: The steps include: a) producing the carbon 10 Guerbet alcohol, 2-isopropyl-5-methyl-1-hexanol (CAS 2051-33-4), by Guerbet synthesis from isoamyl alcohol (CAS 123-51-3); b) mixing the product produced in step 1) with at least one bio-derived alcohol having more than 10 carbon atoms to produce a bio-derived alcohol mixture; c) obtaining a volatile alkane mixture consisting of 2,3,6-trimethylheptane (CAS 4032-93-3) and alkanes having more than 10 carbon atoms by dehydration and subsequent hydrogenation of the bio-derived alcohol mixture produced in step 2); d) adding no volatile alkane or one or more volatile alkanes to the mixture of volatile alkanes; and e) combining said mixture of volatile alkanes with at least one compound selected from non-volatile oils, glossy oils, pasty fatty substances, gelling agents, film-forming polymers, waxes, pigments, dyes and mixtures thereof; A method for preparing the skin applicable cosmetic composition of the present invention.

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