Lipstick composition based on a volatile mixture of alkanes

Abstract

The invention relates to a lipstick composition characterized in that it comprises a volatile mixture of alkanes, said volatile mixture of alkanes comprising: a) from 20 to 100% by weight of a fraction A which comprises at least one C≤10 branched alkane; b) from 0 to 80% by weight of a fraction B which comprises at least one C>10 linear or branched alkane; and characterized in that said volatile mixture of alkanes has a flash point of less than 55°C measured in accordance with standard ASTM D93 and represents a weight percentage greater than or equal to 2% relative to the total weight of the composition. The invention also relates to a process for obtaining said composition.

Description

COMPOSITION FOR LIPSTICK BASED ON A VOLATILE MIXTURE OF ALKANES

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

[0002] More specifically, the invention relates to a lipstick composition comprising a volatile mixture of alkanes.

[0003] As part of this request, a number of definitions must be given.

[0004] An "alkane" is a saturated hydrocarbon consisting solely of carbon and hydrogen atoms linked together by simple covalent bonds, the general formula of which is CnH2n+2.

[0005] A "linear alkane" is an alkane in which each carbon atom is linked to a maximum of two carbon atoms.

[0006] A "branched alkane" is an alkane in which some carbon atoms are linked to three or even four carbon atoms.

[0007] A Cx alkane is an alkane consisting of x carbon atoms, and the alkane can be linear or branched. For example, dodecane is a C12 alkane.

[0008] Commonly, a "volatile mixture of alkanes" is a mixture of alkanes having a flash point less than or equal to 95°C measured according to the ATSM D93 standard.

[0009] For the purposes of the present invention, the term “volatile mixture of alkanes” means a mixture of alkanes having a flash point less than or equal to 55°C measured according to the ATSM D93 standard.

[0010] The flash point is the flash point measured according to ASTM D93. The unit of the flash point measured according to ASTM D93 is degrees Celsius (°C). It can also be an average of values, each of which is obtained by means of a measurement according to ASTM D93.

[0011] The term "mass percentage" refers to the ratio of the mass of a first compound to the total mass of a mixture of compounds or composition, reduced to a percentage. For example, if 10 grams of a compound y are present in a mixture z having a total mass of 100 grams, then the mass percentage of y in z is 10%.

[0012] A "bio-sourced" compound or organic composition is one in which the organic carbon present in the compound or composition is 100% of plant origin ( 14 C) by radiocarbon analysis according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0013] The "naturalness index" of an organic composition is called the percentage of organic carbon of plant origin ( 14 C) determined by analysis radiocarbon according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0014] For the purposes of the present invention, the OECD 301F method makes it possible to assess the biodegradability of a substance by means of a manometric respirometry test.

[0015] Since the appearance of isododecane in cosmetics in the 1990s, its use has expanded considerably in all areas of cosmetics, from skin care products to makeup products such as mascara compositions, long-lasting lipstick, and hair products such as serums or anti-frizz dry oils.

[0016] In some of these products, isododecane can represent up to 60% by mass of the composition of these cosmetic formulas.

[0017] Long-lasting makeup now represents around 25% of the global makeup market: isododecane is a key component because it allows for long-lasting, transfer-free and waterproof performance, while maintaining optimal comfort. This market was developed from this essential ingredient, isododecane, derived from petrochemicals

[0018] However, with oil resources being limited and the oil market being fluctuating and polluting, meeting the demand for isododecane or being able to provide at least equivalent properties in cosmetic formulations represents a strategic challenge for the cosmetics industry.

[0019] To address such a challenge, a first approach is to develop a process for producing isododecane that does not use petroleum raw materials.

[0020] Recently, GLOBAL BIOENERGIES disclosed in its application W02020188033, the production of isobutene by a biological process using genetically modified organisms such as modified E. Coli bacteria.

[0021] The resulting isobutene gas is then converted into isododecane by a solvent-phase oligomerization reaction followed by a hydrogenation step according to patent application WO2021228824.

[0022] This reaction, known in the chemical industry, has the disadvantage of forming by-products and offering a low yield, which raises questions about the long-term viability of this approach in terms of volume and cost.

[0023] Nevertheless, more than €100 million was raised by GLOBAL BIOENERGIES for the development of such a process between 2008 and the beginning of 2021, the date of release of the first batch of cosmetic-grade isododecane.

[0024] This long-term economic investment in the production of isododecane from natural raw materials is remarkable.

[0025] Indeed, a second strategy consisting of reducing the quantity of isododecane present in current cosmetic products or even substituting it is a challenge of a completely different magnitude for the cosmetics industry.

[0026] Furthermore, finding a biodegradable substitute for isododecane would be a major advance from an environmental point of view, as mentioned in patent application EP3349720, such a compound being able to represent up to a mass percentage of 60% of the cosmetic composition.

[0027] Research was thus carried out in order to identify compounds likely to offer a satisfactory alternative to isododecane, these compounds having to have similar volatility characteristics and similar behavior in a formulation, in particular in terms of sensory properties such as the ability to spread on the skin, the sensation to the touch, or even the "non-greasy" character of the film obtained.

[0028] Thus, there remains a need, from an economic and ecological point of view, to have a cosmetic excipient capable of substituting isododecane, in particular as an excipient to be included in cosmetic formulations.

[0029] Surprisingly, it was demonstrated by the Applicant that such an excipient could be obtained.

[0030] This excipient is a volatile mixture of alkanes as previously defined.

[0031] Preferably, this volatile mixture of alkanes is obtained from fatty alcohols by a Guerbet alcohol reaction followed by a dehydration and hydrogenation reaction. This synthetic route advantageously makes it possible to obtain a substitute excipient for isododecane, from raw materials of natural origin according to an industrial process that is economically viable in relation to market needs.

[0032] Moreover, such an excipient is biodegradable according to the OECD 301F method unlike isododecane (CAS 13475-82-6).

[0033] Advantageously, the excipient according to the present invention has a biodegradability of at least 50% according to the OECD 301F method.

[0034] It has also been demonstrated according to the invention that the incorporation of this cosmetic excipient into cosmetic formulations, in particular those of lipstick, long-lasting lipstick, or lip gloss, had the effect of providing said cosmetic formulation with remarkable cosmetic qualities in addition to excellent stability of these formulations, such as ease of application, water resistance, good hold, and a more intense and luminous color.

[0035] Furthermore, the incorporation of this cosmetic excipient has made it possible to obtain cosmetic formulations for lipsticks which can present a naturalness index greater than 90%.

[0036] For the purposes of the present invention, the term "long-lasting" lipstick, or also called "non-transfer" lipstick, means a lipstick that does not leave marks, is water-resistant and sometimes oil-resistant.

[0037] Similarly, "lip gloss" is a makeup product that gives a shiny and / or wet look to the lips, and sometimes, colors or even glitters them. Some of these lip glosses are transparent and can be applied over a classic lipstick to add a shiny effect.

[0038] The invention relates to a lipstick composition characterized in that it comprises a volatile mixture of alkanes, said volatile mixture of alkanes comprising: a) From 20 to 100% by mass of a fraction A which comprises at least one branched C<10 alkane; b) From 0 to 80% by mass of a fraction B which comprises at least one linear or branched C>10 alkane; and in that said volatile mixture of alkanes has a flash point below 55°C measured according to the ASTM D93 standard and represents a mass percentage greater than or equal to 2% relative to the total mass of the composition.

[0039] In one embodiment, the lipstick is a non-transfer or low-transfer lipstick.

[0040] A "transfer-free lipstick" is commonly referred to as a product that does not cause any risk of transfer during meals or after a kiss and is an essential product to avoid having to touch up during the day or evening. Transfer-free lipstick offers very good pigmentation, leaves no trace and lasts at least 8 hours on the lips. Thanks to fixing agents, it allows for limited touch-ups during the day and obviously stays in place on the lips.

[0041] The invention relates to a non-transfer lipstick composition characterized in that it comprises a volatile mixture of alkanes, said volatile mixture of alkanes comprising: a) From 20 to 100% by mass of a fraction A which comprises at least one branched C<10 alkane; b) From 0 to 80% by mass of a fraction B which comprises at least one linear or branched C>10 alkane; and in that said volatile mixture of alkanes has a flash point below 55°C measured according to ASTM D93 and represents a mass percentage greater than or equal to 25% relative to the total mass of the composition.

[0042] The lipstick composition according to the invention is characterized in that it comprises a mass percentage of less than or equal to 15% of isododecane relative to the total mass of the composition.

[0043] The lipstick composition according to the invention is characterized in that it comprises a mass percentage of less than or equal to 10% of isododecane relative to the total mass of the composition.

[0044] Preferably, the lipstick composition according to the invention is characterized in that it comprises a mass percentage of less than or equal to 5% of isododecane relative to the total mass of the composition.

[0045] Preferably, the lipstick composition according to the invention is characterized in that it is free of isododecane.

[0046] In one embodiment, the lipstick composition according to the invention is characterized in that it is free of linear C10 alkanes. Conventionally, according to the book Conception des produits cosmétiques : la formulation, by Anne-Marie PENSE-LHERITIER published in 2014 by LAVOISIER, the composition of a lipstick is based on a pair: Base or support Pigmentary part

[0047] The base contains different types of ingredients selected mainly on their organoleptic properties: - volatile solvents to facilitate application and hold; - oils to provide slip and ease of application; - waxes, to fix consistency and hardness; - fatty substances such as pasty fats or gelling agents to adjust the smoothness and ease of use.

[0048] Obtaining a lipstick is done by finding a subtle balance between these different ingredients.

[0049] Various additives can be added to these ingredients, providing specific properties: polymers, absorbent powders, stabilizing additives (antioxidants, preservatives, etc.), perfume and active ingredients where applicable.

[0050] The different components of the composition according to the invention are detailed below.

[0051] Typically, volatile solvents used in the cosmetics industry are volatile silicones or volatile isoparaffins such as isododecane.

[0052] For the purposes of the present invention, the volatile solvent is defined as a “volatile mixture of alkanes”.

[0053] Preferably, the volatile solvent is free of volatile silicones.

[0054] In one embodiment, the lipstick composition according to the invention is characterized in that the flash point of said volatile mixture of alkanes is less than or equal to 50°C.

[0055] Preferably, the lipstick composition according to the invention is characterized in that the flash point of said volatile mixture of alkanes is between 45 and 50°C.

[0056] Preferably, the lipstick composition according to the invention is characterized in that the flash point of said volatile mixture of alkanes is less than or equal to 45°C.

[0057] Even more preferably, the lipstick composition according to the invention is characterized in that the flash point of said volatile mixture of alkanes is between 40 and 45°C.

[0058] Advantageously, the lipstick composition according to the invention is characterized in that the flash point of said volatile mixture of alkanes is less than or equal to 40°C.

[0059] In one embodiment, the lipstick composition according to the invention is characterized in that the flash point of said volatile mixture of alkanes is between 35 and 40°C.

[0060] According to one embodiment, the “volatile mixture of alkanes” is a mixture of alkanes free of alkanes whose number of carbon atoms is greater than 16.

[0061] Preferably, the “volatile mixture of alkanes” is a mixture of alkanes free of alkanes having a carbon number greater than 15.

[0062] Preferably, the “volatile mixture of alkanes” is free of isododecane.

[0063] Preferably, the “volatile mixture of alkanes” is a mixture of alkanes free of alkanes whose number of carbon atoms is greater than 14.

[0064] In one embodiment, the lipstick composition according to the invention is characterized in that said volatile mixture of alkanes has a naturalness index greater than or equal to 60% carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0065] In one embodiment, the lipstick composition according to the invention is characterized in that said volatile mixture of alkanes has a naturalness index greater than or equal to 70% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0066] Preferably, the lipstick composition according to the invention is characterized in that said volatile mixture of alkanes has a naturalness index greater than or equal to 75% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0067] Preferably, the lipstick composition according to the invention is characterized in that said volatile mixture of alkanes has a naturalness index greater than or equal to 85% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0068] Preferably, the lipstick composition according to the invention is characterized in that said volatile mixture of alkanes has a naturalness index greater than or equal to 90% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0069] Advantageously, the volatile mixture of alkanes present in the composition according to the invention has a naturalness index of 100% carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0070] In one embodiment, the lipstick composition according to the invention is characterized in that said volatile mixture of alkanes is obtained from raw materials of plant, bacterial or animal origin.

[0071] In a preferred embodiment, the lipstick composition according to the invention is characterized in that said volatile mixture of alkanes is obtained from raw materials of plant origin.

[0072] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of at least 50% according to the OECD 301F method.

[0073] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of at least 60% according to the OECD 301F method.

[0074] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 50 and 80% according to the OECD 301F method.

[0075] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 50 and 70% according to the OECD 301F method.

[0076] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 50 and 60% according to the OECD 301F method.

[0077] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 60 and 70% according to the OECD 301F method.

[0078] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 70 and 80% according to the OECD 301F method.

[0079] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is at least 10% relative to the total mass of the composition.

[0080] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is at least 15% relative to the total mass of the composition.

[0081] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is at least 20% relative to the total mass of the composition.

[0082] The non-transfer lipstick composition according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is at least 25% relative to the total mass of the composition.

[0083] In one embodiment, the non-transfer lipstick composition according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is at least 50% relative to the total mass of the composition.

[0084] In one embodiment, the non-transfer lipstick composition according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 25 and 80% relative to the total mass of the composition.

[0085] In one embodiment, the non-transfer lipstick composition according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 40 and 80% relative to the total mass of the composition.

[0086] In one embodiment, the non-transfer lipstick composition according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 25 and 60% relative to the total mass of the composition.

[0087] In one embodiment, the non-transfer lipstick composition according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 30 and 50% relative to the total mass of the composition.

[0088] In one embodiment, the non-transfer lipstick composition according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 40 and 60% relative to the total mass of the composition.

[0089] In one embodiment, the non-transfer lipstick composition according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 60 and 80% relative to the total mass of the composition.

[0090] Fraction A of said volatile mixture of alkanes is selected from the group comprising branched C8, branched C9, branched C10 alkanes, and mixtures thereof.

[0091] Fraction A of said volatile mixture of alkanes comprises at least one branched C<10 alkane.

[0092] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is at least one branched Cs alkane.

[0093] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is chosen from the group comprising branched C9 alkanes, branched C10 alkanes, and mixtures thereof.

[0094] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is chosen from the group comprising branched Cio alkanes, and mixtures thereof.

[0095] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is chosen from the group comprising branched Cio alkanes, and mixtures thereof and is free of branched C8 alkanes.

[0096] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is chosen from the group comprising branched Cio alkanes, and mixtures thereof and is free of branched C8 and C9 alkanes.

[0097] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is a branched C9 alkane.

[0098] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is at least one branched C9 alkane chosen from the group consisting of trimethylhexanes such as, for example, 2,2,4-trimethylhexane (CAS 16747-26-5), 2,2,5-trimethylhexane (CAS 3522-94-9), 2,2,3-trimethylhexane (CAS 16747-25-4), 2,4,4-trimethylhexane (CAS 16747-30-1), 2,3,3-trimethylhexane (CAS 16747-28-1), 3,3,4-trimethylhexane (CAS 16747-31-2), 2,3,5-trimethylhexane (CAS 1069-53-0), 2,3,4-trimethylhexane (CAS 921-47-1).

[0099] For the purposes of the present invention, the term “trimethylhexanes” means all C 6 alkanes branched by three methyl groups. [000100] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is a trimethylhexane. [000101] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,2,4-trimethylhexane (CAS 16747-26-5). [000102] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,3,5-trimethylhexane (CAS 1069-53-0). [000103] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,3,4 trimethylhexane (CAS 921-47-1). [000104] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is a branched Cio alkane. [000105] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is a branched Cio alkane chosen from the group consisting of: 2-methylnonane (CAS 871-83-0), 4-methylnonane (CAS 17301-94-9), 3-methylnonane (CAS 5911-04-6), 3-ethyloctane (CAS 5881-17-4), 2,2-dimethyloctane (CAS 15869-87-1), 2,3-dimethyloctane (CAS 7146-60-3), 2,5-dimethyloctane (CAS 15869-89-3), 3,5-Dimethyloctane (CAS 15869-93-9), 4-propylheptane (CAS 3178-29-8), 3-ethyl-2-methylheptane (CAS 14676-29-0), 2,3,6-trimethylheptane (CAS 4032-93-3), 3,3,4-trimethylheptane (CAS 20278-87-9), 2,3,4-trimethylheptane (CAS 52896-95-4), 2,2,4-trimethylheptane (CAS: 14720-74-2), 3,3-diethylhexane (CAS 17302-02-2), 2,2,3,3-tetramethylhexane (CAS 13475-81-5), 3-ethyl-2,2,3-trimethylpentane (CAS 52897-17-3), 2,2,3-trimethylheptane (CAS 52896-92-1), 2,3,5-trimethylheptane (CAS 20278-85-7), 3,3-diethylhexane (CAS 17302-02-2), 2,2,3,3-tetramethylhexane (CAS 13475-81-5), 3-ethyl-2,2,3-trimethylpentane (CAS 52897-17-3), 3,3,5-trimethylheptane (CAS 7154-80-5), 2,5,5-trimethylheptane (CAS 1189-99-7), 2,4,6-trimethylheptane (CAS 2613-61-8), 3,4,5-trimethylheptane (CAS 20278-89-1), 2,2,6-trimethylheptane (CAS 1190-83-6), 2,4,5-trimethylheptane (CAS 20278-84-6), 2,4,4-trimethylheptane (CAS 4032-92-2), 2,3,3-trimethylheptane (CAS 52896-93-2), 3,4,4-trimethylheptane (CAS 20278-88-0), and mixtures thereof. [000106] For the purposes of the present invention, the term “trimethylheptanes” means all C? alkanes branched by three methyl groups. [000107] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is a branched Cio alkane chosen from the group consisting of trimethylheptanes such as, for example, 2,2,3-trimethylheptane (CAS 52896-92-1), 2,3,5-trimethylheptane (CAS 20278-85-7), 2,3,6-trimethylheptane (CAS 4032-93-3), 3,3,4-trimethylheptane (CAS 20278-87-9), 2.3.4-trimethylheptane (CAS 52896-95-4), 2,2,4-trimethylheptane (CAS 14720-74-2), 3,3,5-trimethylheptane (CAS 7154-80-5), 2,5,5-trimethylheptane (CAS 1189-99-7), 2,4,6-trimethylheptane (CAS 2613-61-8), 3,4,5-trimethylheptane (CAS 20278-89-1), 2,2,6-trimethylheptane (CAS 1190-83-6), 2,4,5-trimethylheptane (CAS 20278-84-6), 2,4,4-trimethylheptane (CAS 4032-92-2), 2,3,3-trimethylheptane (CAS 52896-93-2), 3,4,4-trimethylheptane (CAS 20278-88-0), and mixtures thereof. [000108] The invention also relates to a lipstick composition comprising a volatile mixture of alkanes as previously defined, characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is a trimethylheptane. [000109] The invention also relates to a lipstick composition comprising a volatile mixture of alkanes as previously defined, characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,3,6-trimethylheptane (CAS 4032-93-3). [000110] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,3,5-trimethylheptane (CAS 20278-85-7). [000111] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,2,3-trimethylheptane (CAS 52896-92-1). [000112] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 3,3,4-trimethylheptane (CAS 20278-87-9). [000113] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,3,4-trimethylheptane (CAS 52896-95-4). [000114] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,2,4-trimethylheptane (CAS: 14720-74-2). [000115] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,2,3-trimethylheptane (CAS 52896-92-1). [000116] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 3,3,5-trimethylheptane (CAS 7154-80-5). [000117] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,5,5-trimethylheptane (CAS 1189-99-7). [000118] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,4,6-trimethylheptane (CAS 2613-61-8). [000119] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 3,4,5-trimethylheptane (CAS 20278-89-1). [000120] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,2,6-trimethylheptane (CAS 1190-83-6). [000121] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,4,5-trimethylheptane (CAS 20278-84-6). [000122] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,4,4-trimethylheptane (CAS 4032-92-2). [000123] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is 2,3,3-trimethylheptane (CAS 52896-93-2). [000124] The invention also relates to a lipstick composition comprising a volatile mixture of alkanes as previously defined, characterized in that the at least one branched C<10 alkane of said volatile mixture of alkanes is a trimethylheptane and a trimethylhexane. [000125] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is at least 20% relative to the total mass of said volatile mixture of alkanes. [000126] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is greater than 50% relative to the total mass of said volatile mixture of alkanes. [000127] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 20% and 100% relative to the total mass of said volatile mixture of alkanes. [000128] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 20% and 70% relative to the total mass of said volatile mixture of alkanes. [000129] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 51% and 100% relative to the total mass of said volatile mixture of alkanes. [000130] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes. [000131] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 40% and 70% relative to the total mass of said volatile mixture of alkanes. [000132] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 70% and 100% relative to the total mass of said volatile mixture of alkanes. [000133] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes. [000134] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes. [000135] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes. [000136] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 70% and 90% relative to the total mass of said volatile mixture of alkanes. [000137] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 80% and 100% relative to the total mass of said volatile mixture of alkanes. [000138] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is at least 20% relative to the total mass of said volatile mixture of alkanes. [000139] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is greater than 50% relative to the total mass of said volatile mixture of alkanes. [000140] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 20% and 100% relative to the total mass of said volatile mixture of alkanes. [000141] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 20% and 70% relative to the total mass of said volatile mixture of alkanes. [000142] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 51% and 100% relative to the total mass of said volatile mixture of alkanes. [000143] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes. [000144] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 40% and 70% relative to the total mass of said volatile mixture of alkanes. [000145] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one alkane in C<10 branched of said volatile mixture of alkanes is between 70% and 100% relative to the total mass of said volatile mixture of alkanes. [000146] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes. [000147] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes. [000148] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes. [000149] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 70% and 90% relative to the total mass of said volatile mixture of alkanes. [000150] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 80% and 100% relative to the total mass of said volatile mixture of alkanes. [000151] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of fraction A of said volatile mixture of alkanes is 2,3,6-trimethylheptane (CAS 4032-93-3). [000152] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is at least 20% relative to the total mass of said volatile mixture of alkanes. [000153] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 20% and 100% relative to the total mass of said volatile mixture of alkanes. [000154] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of at least one branched C<10 alkane of said volatile mixture of alkanes is between 20% and 70% relative to the total mass of said volatile mixture of alkanes. [000155] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 51% and 100% relative to the total mass of said volatile mixture of alkanes. [000156] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes. [000157] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 40% and 70% relative to the total mass of said volatile mixture of alkanes. [000158] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 70% and 100% relative to the total mass of said volatile mixture of alkanes. [000159] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes. [000160] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes. [000161] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes. [000162] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 70% and 90% relative to the total mass of said volatile mixture of alkanes. [000163] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 80% and 100% relative to the total mass of said volatile mixture of alkanes. [000164] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one branched C<10 alkane of fraction A of said volatile mixture of alkanes is 2,2,4-trimethylhexane (CAS 16747-26-5) [000165] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C<10 alkane of said volatile mixture of alkanes is at least 5% relative to the total mass of said volatile mixture of alkanes. [000166] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C<10 alkane of said volatile mixture of alkanes is at least 10% relative to the total mass of said volatile mixture of alkanes. [000167] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 5% and 20% relative to the total mass of said volatile mixture of alkanes. [000168] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 5% and 15% relative to the total mass of said volatile mixture of alkanes. [000169] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 10% and 20% relative to the total mass of said volatile mixture of alkanes. [000170] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 10% and 15% relative to the total mass of said volatile mixture of alkanes. [000171] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C<10 alkane of said volatile mixture of alkanes is between 15% and 20% relative to the total mass of said volatile mixture of alkanes. [000172] Fraction B of said volatile mixture of alkanes comprises at least one linear or branched C>10 alkane. [000173] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is chosen from the group comprising Cn, C12, C13 alkanes and their mixtures. [000174] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is chosen from the group comprising C12, C alkanes, and mixtures thereof. [000175] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is chosen from the group comprising C12, C13, C, C15, C16 alkanes and mixtures thereof. [000176] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is chosen from the group comprising linear Cn, Ci2, C13, C14, C15 alkanes, and mixtures thereof. [000177] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is chosen from the group consisting of undecane (CAS 1120-21-4), n-dodecane (CAS 112-40-3), n-tridecane (CAS 629-50-5), n-tetradecane (CAS 629-59-4), n-pentadecane (CAS 629-62-9) and mixtures thereof. [000178] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is undecane (CAS 1120-21-4). [000179] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is n-dodecane (CAS 112-40-3). [000180] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is n-tridecane (CAS 629-50-5). [000181] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is the undecane / tridecane mixture marketed under the name CETIOL ULTIMATE by BASF. [000182] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is n-tetradecane (CAS 629-59-4). [000183] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is chosen from the group comprising branched C12, branched C13, branched C, branched C15, branched C16 alkanes, and mixtures thereof. [000184] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched Cn alkane. [000185] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C12 alkane. In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C12 alkane 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. [000186] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least one isododecane. [000187] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is 2,2,4,6,6-pentamethylheptane (CAS 13475-82-6). [000188] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C13 alkane. [000189] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C alkane. [000190] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C15 alkane. [000191] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least the hemisqualane marketed under the name NEOSSANCE by AMYRIS. [000192] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least one C13-C15 mixture marketed under the name EMOGREEN L15 by SEPPIC. [000193] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C16 alkane. [000194] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least one isohexadecane. [000195] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 0 and 80% relative to the total mass of said volatile mixture of alkanes. [000196] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 0 and 50% relative to the total mass of said volatile mixture of alkanes. [000197] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 0 and 30% relative to the total mass of said volatile mixture of alkanes. [000198] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is at least 30% relative to the total mass of said volatile mixture of alkanes. [000199] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 30% and 80% relative to the total mass of said volatile mixture of alkanes. [000200] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes. [000201] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 50% and 80% relative to the total mass of said volatile mixture of alkanes. [000202] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes. [000203] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes. [000204] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes. [000205] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 60% and 80% relative to the total mass of said volatile mixture of alkanes. [000206] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 0% and 10% relative to the total mass of said volatile mixture of alkanes. [000207] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 10% and 20% relative to the total mass of said volatile mixture of alkanes. [000208] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 40% and 50% relative to the total mass of said volatile mixture of alkanes. [000209] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 60% and 70% relative to the total mass of said volatile mixture of alkanes. [000210] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 70% and 80% relative to the total mass of said volatile mixture of alkanes. [000211] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0 and 80% relative to the total mass of said volatile mixture of alkanes. [000212] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0 and 50% relative to the total mass of said volatile mixture of alkanes. [000213] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0 and 30% relative to the total mass of said volatile mixture of alkanes. [000214] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least 30% relative to the total mass of said volatile mixture of alkanes. [000215] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least 50% relative to the total mass of said volatile mixture of alkanes. [000216] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 30% and 80% relative to the total mass of said volatile mixture of alkanes. [000217] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes. [000218] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 50% and 80% relative to the total mass of said volatile mixture of alkanes. [000219] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0 and 20% relative to the total mass of said volatile mixture of alkanes. [000220] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 10 and 30% relative to the total mass of said volatile mixture of alkanes. [000221] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes. [000222] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes. [000223] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes. [000224] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one alkane in C>10 linear or branched of said volatile mixture of alkanes is between 60% and 80% relative to the total mass of said volatile mixture of alkanes. [000225] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0 and 10% relative to the total mass of said volatile mixture of alkanes. [000226] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 10 and 20% relative to the total mass of said volatile mixture of alkanes. [000227] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 20 and 30% relative to the total mass of said volatile mixture of alkanes. [000228] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 40% and 50% relative to the total mass of said volatile mixture of alkanes. [000229] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 60% and 70% relative to the total mass of said volatile mixture of alkanes. [000230] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 70% and 80% relative to the total mass of said volatile mixture of alkanes. [000231] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0 and 80% relative to the total mass of said volatile mixture of alkanes. [000232] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0 and 50% relative to the total mass of said volatile mixture of alkanes. [000233] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0 and 30% relative to the total mass of said volatile mixture of alkanes. [000234] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least 10% relative to the total mass of said volatile mixture of alkanes. [000235] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least 30% relative to the total mass of said volatile mixture of alkanes. [000236] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 10% and 80% relative to the total mass of said volatile mixture of alkanes. [000237] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 30% and 80% relative to the total mass of said volatile mixture of alkanes. [000238] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes. [000239] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 50% and 80% relative to the total mass of said volatile mixture of alkanes. [000240] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes. [000241] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes. [000242] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes. [000243] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 60% and 80% relative to the total mass of said volatile mixture of alkanes. [000244] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 0% and 10% relative to the total mass of said volatile mixture of alkanes. [000245] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 10% and 20% relative to the total mass of said volatile mixture of alkanes. [000246] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 20% and 30% relative to the total mass of said volatile mixture of alkanes. [000247] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 40% and 50% relative to the total mass of said volatile mixture of alkanes. [000248] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 50% and 60% relative to the total mass of said volatile mixture of alkanes. [000249] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 60% and 70% relative to the total mass of said volatile mixture of alkanes. [000250] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is between 70% and 80% relative to the total mass of said volatile mixture of alkanes. [000251] The invention also relates to a lipstick composition comprising a volatile mixture of alkanes as previously defined, characterized in that the volatile mixture of alkanes comprises: - 20 to 100% trimethylheptane (CAS 4032-93-3) - 0 to 80% n-dodecane (CAS 112-40-3). [000252] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: - 20 to 100% trimethylheptane (CAS 4032-93-3) - 0 to 80% n-dodecane (CAS 112-40-3). [000253] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes comprises: - 20 to 70% trimethylheptane (CAS 4032-93-3) - 30 to 80% n-dodecane (CAS 112-40-3). [000254] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: - 20 to 70% trimethylheptane (CAS 4032-93-3) - 30 to 80% n-dodecane (CAS 112-40-3). [000255] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes comprises: - 50 to 100% trimethylheptane (CAS 4032-93-3) - 0 to 50% n-dodecane (CAS 112-40-3). [000256] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: - 50 to 70% trimethylheptane (CAS 4032-93-3) - 0 to 50% n-dodecane (CAS 112-40-3). [000257] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes comprises: - 20 to 100% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 0 to 80% n-dodecane (CAS 112-40-3). [000258] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: - 20 to 100% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 0 to 80% n-dodecane (CAS 112-40-3). [000259] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes comprises: - 20 to 70% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 30 to 80% n-dodecane (CAS 112-40-3). [000260] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: - 20 to 70% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 30 to 80% n-dodecane (CAS 112-40-3). [000261] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -30% of 2,3,6-trimethylheptane (CAS 4032-93-3) -70% n-dodecane (CAS 112-40-3). [000262] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -35% of 2,3,6-trimethylheptane (CAS 4032-93-3) -65% n-dodecane (CAS 112-40-3). [000263] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -40% 2,3,6-trimethylheptane (CAS 4032-93-3) -60% n-dodecane (CAS 112-40-3). [000264] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -45% of 2,3,6-trimethylheptane (CAS 4032-93-3) -55% n-dodecane (CAS 112-40-3). [000265] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -60% of 2,3,6-trimethylheptane (CAS 4032-93-3) -40% n-dodecane (CAS 112-40-3). [000266] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -70% of 2,3,6-trimethylheptane (CAS 4032-93-3) -30% n-dodecane (CAS 112-40-3). [000267] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -90% of 2,3,6-trimethylheptane (CAS 4032-93-3) -10% n-dodecane (CAS 112-40-3). [000268] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -100% of 2,3,6-trimethylheptane (CAS 4032-93-3). [000269] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes comprises: - 5 to 15% trimethylhexane - 20 to 95% trimethylheptane - 0 to 75% n-dodecane (CAS 112-40-3). [000270] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: - 5 to 15% trimethylhexane - 20 to 95% trimethylheptane - 0 to 75% n-dodecane (CAS 112-40-3). [000271] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes comprises: - 5 to 10% of 2,2,4-trimethylhexane - 20 to 60% of 2,3,6-trimethylheptane - 0 to 75% n-dodecane (CAS 112-40-3). [000272] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: - 5 to 10% of 2,2,4-trimethylhexane - 20 to 60% of 2,3,6-trimethylheptane - 0 to 75% n-dodecane (CAS 112-40-3). [000273] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes comprises: - 5 to 15% of 2,2,4-trimethylhexane (CAS 16747-26-5) - 20 to 95% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 0 to 75% n-dodecane (CAS 112-40-3). [000274] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: - 5 to 15% of 2,2,4-trimethylhexane (CAS 16747-26-5) - 20 to 95% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 0 to 75% n-dodecane (CAS 112-40-3). [000275] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes comprises: - 5 to 10% of 2,2,4-trimethylhexane (CAS 16747-26-5) - 20 to 60% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 0 to 75% n-dodecane (CAS 112-40-3). [000276] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: - 5 to 10% of 2,2,4-trimethylhexane (CAS 16747-26-5) - 20 to 60% of 2,3,6-trimethylheptane (CAS 4032-93-3) - 0 to 75% n-dodecane (CAS 112-40-3). [000277] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -5% of 2,2,4-trimethylhexane (CAS 16747-26-5) -20% 2,3,6-trimethylheptane (CAS 4032-93-3) -75% n-dodecane (CAS 112-40-3). [000278] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -5% of 2,2,4-trimethylhexane (CAS 16747-26-5) -30% 2,3,6-trimethylheptane (CAS 4032-93-3) -65% n-dodecane (CAS 112-40-3). [000279] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -5% of 2,2,4-trimethylhexane (CAS 16747-26-5) -35% 2,3,6-trimethylheptane (CAS 4032-93-3) -60% n-dodecane (CAS 112-40-3). [000280] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -5% 2,2,4-trimethylhexane (CAS 16747-26-5) -45% 2,3,6-trimethylheptane (CAS 4032-93-3) -50% n-dodecane (CAS 112-40-3). [000281] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -10% of 2,2,4-trimethylhexane (CAS 16747-26-5) -20% 2,3,6-trimethylheptane (CAS 4032-93-3) -70% n-dodecane (CAS 112-40-3). [000282] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -10% of 2,2,4-trimethylhexane (CAS 16747-26-5) -30% 2,3,6-trimethylheptane (CAS 4032-93-3) -60% n-dodecane (CAS 112-40-3). [000283] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -10% of 2,2,4-trimethylhexane (CAS 16747-26-5) -35% 2,3,6-trimethylheptane (CAS 4032-93-3) -55% n-dodecane (CAS 112-40-3). [000284] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -15% of 2,2,4-trimethylhexane (CAS 16747-26-5) -20% 2,3,6-trimethylheptane (CAS 4032-93-3) -65% n-dodecane (CAS 112-40-3). [000285] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -15% of 2,2,4-trimethylhexane (CAS 16747-26-5) -25% 2,3,6-trimethylheptane (CAS 4032-93-3) -60% n-dodecane (CAS 112-40-3) [000286] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes consists of: -15% of 2,2,4-trimethylhexane (CAS 16747-26-5) -30% 2,3,6-trimethylheptane (CAS 4032-93-3) -55% n-dodecane (CAS 112-40-3). [000287] In one embodiment, the lipstick composition according to the invention as defined above is characterized in that the volatile mixture of alkanes comprises: a) from 70 to 99% by mass of the volatile mixture of alkanes composed of a fraction A and a fraction B as defined above a) 1 to 30% by mass of a fraction C containing at least one linear C<10 alkane. [000288] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes comprises at least one linear C<10 alkane chosen from the group consisting of n-octane, n-nonane and n-decane. [000289] In one embodiment, the lipstick composition according to the invention is characterized in that the at least one linear C<10 alkane present in the volatile mixture of alkanes is n-decane. [000290] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear C<10 alkane is at least 1% relative to the total mass of said volatile mixture of alkanes. [000291] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear C<10 alkane is between 1 and 20% relative to the total mass of said volatile mixture of alkanes. [000292] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear C<10 alkane is between 10 and 30% relative to the total mass of said volatile mixture of alkanes. [000293] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear C<10 alkane is between 5 and 15% relative to the total mass of said volatile mixture of alkanes. [000294] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear C<10 alkane is between 10 and 20% relative to the total mass of said volatile mixture of alkanes. [000295] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the at least one linear C<10 alkane is between 20 and 30% relative to the total mass of said volatile mixture of alkanes. [000296] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a flash point below 55°C according to the ASTM D93 standard. [000297] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a flash point of between 45 and 54°C. [000298] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined above has a flash point between 45 and 50°C. [000299] In one embodiment, the lipstick composition according to the invention is characterized in that the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a flash point of between 50 and 54°C. [000300] In one embodiment, the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a percentage greater than or equal to 50% of carbon 14 ( 14 C) according to one of the following methods ASTM D6866, EM 16640 or EN 16785-1. [000301] In one embodiment, the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a percentage greater than or equal to 60% in carbon 14 ( 14 C) according to one of the following methods ASTM D6866, EM 16640 or EN 16785-1. [000302] In one embodiment, the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a percentage greater than or equal to 75% in carbon 14 ( 14 C) according to one of the following methods ASTM D6866, EM 16640 or EN 16785-1. [000303] In one embodiment, the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a percentage greater than or equal to 85% of carbon 14 ( 14 C) according to one of the following methods ASTM D6866, EM 16640 or EN 16785-1. In one embodiment, the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined previously has a percentage greater than or equal to 90% of carbon 14 ( 14 C) according to one of the following methods ASTM D6866, EM 16640 or EN 16785-1. [000304] In the context of the present application, the lipstick composition is characterized in that it comprises at least one non-volatile oil. [000305] For the purposes of the present invention, the term “non-volatile oil” means an oil having a flash point above 110°C measured according to the ATSM D93 standard. [000306] These oils can be of vegetable, mineral or synthetic origin. [000307] These non-volatile oils can be hydrocarbon, silicone, fluorinated or fluorosilicone oils. [000308] For the purposes of the present invention, the term “hydrocarbon oil” means an oil essentially consisting of carbon atoms, hydrogen atoms and possibly oxygen and / or nitrogen atoms. [000309] Among these hydrocarbon oils, we can cite linear or branched alkanes of mineral or synthetic origin such as linear or branched alkanes of 17 to 40 carbon atoms, (poly)esters and (poly)ethers, and in particular (poly)esters of C2-C24 (preferably C6-C20) acids, triglycerides of C6-C20 fatty acids, vegetable oils, di-alkyl carbonates, branched and / or unsaturated fatty acids, branched and / or unsaturated fatty alcohols. [000310] Concerning non-volatile silicone oils, they are notably chosen from the group comprising phenylated silicone oils, non-volatile polydimethylsiloxanes, or derivatives of non-volatile polydimethylsiloxanes and their mixtures. [000311] In a particularly preferred embodiment of the invention, the lipstick composition according to the invention is characterized in that the non-volatile oil is chosen from the group consisting of non-volatile linear or branched alkanes. [000312] Preferably, the lipstick composition according to the invention is characterized in that the non-volatile oil is chosen from the group consisting of non-volatile linear or branched alkanes. [000313] Preferably, the lipstick composition according to the invention is characterized in that the non-volatile linear or branched alkanes are chosen from the group consisting of linear or branched alkanes of 17 to 40 carbon atoms. [000314] The non-volatile oils used in the context of this invention are of plant origin. [000315] In a preferred embodiment, the lipstick composition according to the invention is characterized in that the non-volatile oil is a vegetable hydrocarbon oil. [000316] The vegetable hydrocarbon oils are in particular chosen from the group comprising wheat germ, sunflower, grape seed, sesame, coconut, apricot, castor, corn, avocado, soybean, shea, olive, sweet almond, cotton, palm, macadamia, rapeseed, jojoba, hazelnut, poppy, alfalfa, pumpkin, blackcurrant, squash, evening primrose, barley oils, and mixtures thereof. [000317] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the non-volatile oil is at least 5% relative to the total mass of the composition. [000318] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the non-volatile oil is at least 10% relative to the total mass of the composition. [000319] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the non-volatile oil is between 5 and 25% relative to the total mass of the composition. [000320] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the non-volatile oil is between 5 and 15% relative to the total mass of the composition. [000321] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the non-volatile oil is between 10 and 25% relative to the total mass of the composition. [000322] For the purposes of the present invention, the term "shiny oil" means an oil having intrinsic shine properties. "Shiny oils" are frequently used in cosmetics to ensure a "shiny effect" when applying cosmetic compositions to keratin materials, for example. [000323] In the context of the present application, the lipstick composition is characterized in that it comprises at least one shiny oil. [000324] In one embodiment, the lipstick composition according to the invention is characterized in that the glossy oil is a non-volatile oil. [000325] In one embodiment, the lipstick composition according to the invention is characterized in that the shiny oil is chosen from the group comprising: - polymers such as: polybutylenes, in particular POLYBUTENE® marketed or manufactured by the company ATAMAN, hydrogenated polyisobutylenes, polydecenes and hydrogenated polydecenes, polyfarnesenes, vinylpyrrolidone copolymers, in particular the vinylpyrrolidone / eicosene copolymer, ANTARON V 220 ® marketed or manufactured by the company ISP. - esters such as esters of linear fatty acids having a total number of carbons greater than 30, aromatic esters, esters of fatty alcohols or branched fatty acids having from 20 to 30 carbon atoms. - ester copolymers such as: dimer dilinoleyl dimer dilinoleate (LUSPLAN DD-DA5 ® and LUSPLAN DD-DA7 ®), dilinoleic acid / butanediol copolymer (VISCOPLAST 14436H®), dilinoleic acid / propanediol copolymer and their mixtures. [000326] Preferably, the glossy oil used in the context of the present invention is of plant origin. [000327] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the glossy oil is at least 2% relative to the total mass of the composition. [000328] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the shiny oil is at least 5% relative to the total mass of the composition. [000329] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the shiny oil is between 2 and 20% relative to the total mass of the composition. [000330] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the shiny oil is between 5 and 15% relative to the total mass of the composition. [000331] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the shiny oil is between 10 and 20% relative to the total mass of the composition. [000332] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the shiny oil is between 2 and 10% relative to the total mass of the composition. [000333] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the shiny oil is between 5 and 10% relative to the total mass of the composition. [000334] These ingredients play an important role in the formulation of lipsticks because they allow the formulation to be balanced in terms of creaminess in use. [000335] For the purposes of the present invention, the term "pasty fatty substance" means a lipophilic fatty compound with a reversible solid / liquid state change, having at room temperature (25°C) a liquid fraction and a solid fraction. [000336] In other words, the melting temperature of the pasty fatty substance is less than or equal to 25°C. [000337] In the context of the present application, the lipstick composition is characterized in that it further comprises at least one pasty fatty substance. [000338] In one embodiment, the lipstick composition according to the invention is characterized in that the pasty fatty substance is chosen from the group comprising synthetic pasty fatty substances, animal pasty fatty substances, vegetable pasty fatty substances and mixtures thereof. [000339] In one embodiment, the lipstick composition according to the invention is characterized in that the synthetic pasty fatty substance is chosen from the group comprising: polyol ethers, petroleum jelly, vinyl polymers, pentaerythritol esters, polyesters and mixtures thereof. [000340] In one embodiment, the lipstick composition according to the invention is characterized in that the animal pasty fatty substance is lanolin. [000341] Preferably, the lipstick composition according to the invention is characterized in that the pasty fatty substance is a vegetable pasty fatty substance. [000342] In one embodiment, the lipstick composition according to the invention is characterized in that the vegetable pasty fatty substance is chosen from the group including: vegetable butters (avocado butter, shea butter), fatty acid triglycerides and their derivatives, and their mixtures. [000343] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the pasty fatty substance is between 0 and 20% relative to the total mass of the composition. [000344] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the pasty fatty substance is between 0 and 15% relative to the total mass of the composition. [000345] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the pasty fatty substance is between 0 and 10% relative to the total mass of the composition. [000346] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the pasty fatty substance is between 0 and 5% relative to the total mass of the composition. [000347] For the purposes of the present invention, the term gelling agent means compounds which constitute excellent texturizing agents for balancing formulations in terms of smoothness and stickiness. [000348] Furthermore, certain glossy oils such as VISCOPLAST 14436H®, and the compounds marketed under the names LUSPLAN DD-DA5® and LUSPLAN DD-DA7® can also be used as gelling agents. [000349] In one embodiment, the lipstick composition according to the invention is characterized in that it comprises at least one gelling agent. [000350] In one embodiment, the lipstick composition according to the invention is characterized in that the gelling agent is chosen from the group comprising: organic gelling agents, mineral gelling agents, polymeric gelling agents, and mixtures thereof. [000351] Preferably, the lipstick composition according to the invention is characterized in that the gelling agent is of plant origin. [000352] In one embodiment, the lipstick composition according to the invention is characterized in that the organic gelling agent is chosen from the group comprising: ethylcellulose and its derivatives, resins derived from rosin, dextrin esters, fatty acid esters, and mixtures thereof. [000353] In one embodiment, the lipstick composition according to the invention is characterized in that the mineral gelling agent is chosen from the group comprising: hectorite and its derivatives, pyrogenic silica and its derivatives, and mixtures thereof. [000354] In one embodiment, the lipstick composition according to the invention is characterized in that the polymeric gelling agent is chosen from the group including: organopolysiloxanes and their derivatives, dimethicone copolymers and their derivatives, polystyrene / polyisoprene copolymers, polystyrene / polybutadiene copolymers, polystyrene / copoly(ethylene-propylene) copolymers, polystyrene / copoly(ethylene-butylene) copolymers, blends of copolymers in isododecane such as ethylene / propylene copolymer or butylene / ethylene / styrene copolymer, polyesters and their derivatives, polyamide resins, and blends thereof. [000355] In one embodiment, the lipstick composition according to the invention is characterized in that the gelling agent is dextrin palmitate or one of its derivatives. [000356] In one embodiment, the lipstick composition according to the invention is characterized in that the gelling agent is a modified hectorite of the BENTONE GEL ISD V® type or one of its equivalents. [000357] In one embodiment, the lipstick composition according to the invention is characterized in that the gelling agent is a modified hectorite of the VEGELIGHT BENTONE SILK SB® type or one of its equivalents. [000358] In one embodiment, the lipstick composition according to the invention is characterized in that the gelling agent is a modified hectorite of the disteardimonium hectorite type associated with triethyl citrate and a volatile mixture of alkanes defined according to the present invention. [000359] In one embodiment, the lipstick composition according to the invention is characterized in that the gelling agent is a mixture of copolymer in isododecane such as ethylene / propylene copolymer. [000360] In one embodiment, the lipstick composition according to the invention is characterized in that the gelling agent is the combination of a dimethicone polymer and a mixture of alkanes marketed under the name VEGELIGHT SILK SI 118 ® by BIOSYNTHIS, or one of its equivalents. [000361] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the gelling agent is at least 5% relative to the total mass of the composition. [000362] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the gelling agent is at least 15% relative to the total mass of the composition. [000363] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the gelling agent is between 5 and 30% relative to the total mass of the composition. [000364] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the gelling agent is between 5 and 20% relative to the total mass of the composition. [000365] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the gelling agent is between 15 and 30% relative to the total mass of the composition. [000366] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the gelling agent is between 5 and 15% relative to the total mass of the composition. [000367] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the gelling agent is between 15 and 25% relative to the total mass of the composition. [000368] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the gelling agent is between 20 and 30% relative to the total mass of the composition. [000369] For the purposes of the present invention, the term film-forming polymer means a polymer capable of forming a macroscopically continuous film, in particular on the lips within the scope of our invention. [000370] In one embodiment, the lipstick composition according to the invention is characterized in that it comprises at least one film-forming polymer. [000371] In one embodiment, the lipstick composition according to the invention is characterized in that the film-forming polymer is chosen from the group comprising: acrylic polymers, polyurethanes, polyesters, polyamides, silicone polymers. [000372] In one embodiment, the lipstick composition according to the invention is characterized in that the film-forming polymer is trimethylsilloxysilicate marketed under the name TMS 803. [000373] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the film-forming polymer is at least 1% relative to the total mass of the composition. [000374] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the film-forming polymer is at least 10% relative to the total mass of the composition. [000375] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the film-forming polymer is between 1 and 25% relative to the total mass of the composition. [000376] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the film-forming polymer is between 10 and 25% relative to the total mass of the composition. [000377] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the film-forming polymer is between 1 and 10% relative to the total mass of the composition. [000378] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the film-forming polymer is between 10 and 20% relative to the total mass of the composition. [000379] Waxes play an important role in the design of lipstick because they influence certain essential criteria such as the texture, appearance and / or solidity of the product. [000380] In the context of the present invention, the term "wax" means a lipophilic compound having a reversible solid / liquid state change. In other words, the compound is solid at room temperature (at 25°C) and has a melting point greater than or equal to 30°C. [000381] Preferably, within the meaning of the present invention, the waxes used have a melting point greater than or equal to 50°C. [000382] In one embodiment, the lipstick composition according to the invention is characterized in that it comprises at least one wax. [000383] In one embodiment, the lipstick composition according to the invention is characterized in that it comprises at least one wax chosen from the group consisting of synthetic waxes, mineral waxes, vegetable waxes and animal waxes. [000384] In one embodiment, the lipstick composition according to the invention is characterized in that the wax is a mineral wax or a synthetic wax chosen from the group comprising: microcrystalline waxes, paraffins, ozokerite, polyethylene waxes, silicone waxes, fluorinated waxes. [000385] By "vegetable wax" is meant a composition comprising at least one partially or completely hydrogenated oil. These vegetable waxes may comprise esters of fatty acids and fatty alcohols, and may further comprise fatty acids, free fatty alcohols, long chain linear alkanes and / or unsaponifiables. [000386] Preferably, within the meaning of the present invention, the waxes used are vegetable waxes. [000387] In one embodiment, the lipstick composition according to the invention is characterized in that the wax is a vegetable or animal wax chosen from the group comprising: lanolin wax, rice bran wax, Carnauba wax, Candellila wax, Berry wax, Beeswax, Sunflower wax, Mimosa wax, Jojoba wax, Castor wax, Olive wax. [000388] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the wax is at least 2% relative to the total mass of the composition. [000389] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the wax is at least 5% relative to the total mass of the composition. [000390] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the wax is between 2 and 20% relative to the total mass of the composition. [000391] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the wax is between 5 and 15% relative to the total mass of the composition. [000392] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the wax is between 2 and 10% relative to the total mass of the composition. [000393] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the wax is between 5 and 10% relative to the total mass of the composition. [000394] In one embodiment, the lipstick composition according to the invention is characterized in that it further comprises at least one antioxidant. [000395] In one embodiment, the lipstick composition according to the invention is characterized in that the antioxidant is chosen from the group comprising: phenolic antioxidants of the BHA, BHT, DBPC, gallate type, so-called natural antioxidants such as dl-alpha-tocopherol or its derivatives, plant extracts, dibasic lipopeptides such as lysine or arginine, and mixtures thereof. [000396] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the antioxidant is at least 0.01% relative to the total mass of the composition. [000397] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the antioxidant is at least 0.1% relative to the total mass of the composition. [000398] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the antioxidant is between 0.01% and 2% relative to the total mass of the composition. [000399] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the antioxidant is between 0.01% and 1% relative to the total mass of the composition. [000400] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the antioxidant is between 0.1% and 1% relative to the total mass of the composition. [000401] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the antioxidant is between 0.01% and 0.1% relative to the total mass of the composition. [000402] This part is essential to obtain the coloring. The pigments used are of synthetic, mineral or vegetable origin. Their dosage is also subtle. [000403] In one embodiment, the lipstick composition according to the invention is characterized in that it comprises at least one pigmentary part. [000404] In one embodiment, the lipstick composition according to the invention is characterized in that the pigmentary part is chosen from the group comprising: water-soluble dyes, liposoluble dyes, pigments, pearlescent agents, glitter and mixtures thereof. [000405] In one embodiment, the lipstick composition according to the invention is characterized in that the pigmentary part comprises a pigment chosen from the group comprising: organic pigments such as fixed pigments or precipitated pigments, mineral pigments such as titanium dioxide or iron oxides, sodium aluminosilicate thiosulfates, chromium oxides, bismuth oxychloride, copper phthalocyanine, metal-free phthalocyanine, chlorinated copper phthalocyanine. [000406] Thus, the titanium oxide level determines the coverage and opacity of the film. [000407] The use of lakes or precipitated pigments determines the color and chrominance. [000408] By way of illustration, other types of pigments can be used such as titanium mica, borosilicates and their derivatives, mica, silica. [000409] Mineral pigments are used to nuance the shades while compounds such as bismuth oxychloride can be used to confer particular effects (metallic, shimmering effects, etc.). [000410] In one embodiment, the lipstick composition according to the invention is characterized in that the pigmentary part comprises a synthetic colorant chosen from the group comprising: CI100006, CI12010, CI12085, CI12120, CI12370, CI12420, CI12490, CI14270, CI14700, CI14720, CI14815, CI15525, CI15580, CI15620, CI15630, CI15850, CI15865, CI15880, CI15980, CI15985, CI1035, CI16255, CI16290, CI17200, CI18050, CI45100, CI45220, CI45380, CI45430. [000411] In one embodiment, the lipstick composition according to the invention is characterized in that the pigmentary part comprises a colorant of plant origin chosen from fruit and / or plant extracts containing colorants. [000412] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the pigmentary part is at least 0.01% relative to the total mass of the composition. [000413] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the pigmentary part is at least 1% relative to the total mass of the composition. [000414] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of the pigmentary part is at least 5% relative to the total mass of the composition. [000415] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of pigmentary part is between 0.01% and 20% relative to the total mass of the composition. [000416] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of pigmentary part is between 1% and 20% relative to the total mass of the composition. [000417] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of pigmentary part is between 5% and 20% relative to the total mass of the composition. [000418] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of pigmentary part is between 1% and 15% relative to the total mass of the composition. [000419] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of pigmentary part is between 5% and 15% relative to the total mass of the composition. [000420] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of pigmentary part is between 0.01% and 5% relative to the total mass of the composition. [000421] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of pigmentary part is between 5% and 10% relative to the total mass of the composition. [000422] In one embodiment, the lipstick composition according to the invention is characterized in that the mass percentage of pigmentary part is between 10% and 15% relative to the total mass of the composition. [000423] In one embodiment, the lipstick composition according to the invention is characterized in that it has a naturalness index greater than or equal to 80% carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000424] In one embodiment, the lipstick composition according to the invention is characterized in that it has a naturalness index greater than or equal to 85% carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000425] In one embodiment, the lipstick composition according to the invention is characterized in that it has a naturalness index greater than or equal to 90% of carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000426] In one embodiment, the lipstick composition according to the invention is characterized in that it has a naturalness index greater than or equal to 95% of carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000427] In one embodiment, the lipstick composition according to the invention is characterized in that at least 50% by mass of its ingredients is of natural origin relative to the total mass of the composition. [000428] An ingredient of “natural origin” means an ingredient that is obtained directly from the earth, soil, water, atmosphere or from plants, via, where appropriate, one or more physical processes, such as, for example, grinding, refining, distillation, purification or filtration. [000429] An ingredient of “natural origin” means an ingredient that has undergone one or more chemical or industrial treatments, resulting in modifications that do not affect the essential qualities of this ingredient and / or an ingredient comprising mainly natural constituents that have or have not undergone transformations, as indicated above. [000430] As a non-limiting example of additional chemical or industrial treatments resulting in modifications which do not affect the essential qualities of a natural compound, we can mention those authorized by control organizations such as Ecocert or COSMOS. [000431] For the purposes of the invention, the term "synthetic or artificial ingredient" means an ingredient which does not meet the definitions of natural or naturally derived ingredients indicated above. [000432] In one embodiment, the lipstick composition according to the invention is characterized in that at least 75% by mass of its ingredients is of natural origin relative to the total mass of the composition. [000433] In one embodiment, the lipstick composition according to the invention is characterized in that at least 90% by mass of its ingredients is of natural origin relative to the total mass of the composition. [000434] In one embodiment, the lipstick composition according to the invention is characterized in that 50% by mass of its ingredients is of natural origin relative to the total mass of the composition. [000435] In one embodiment, the lipstick composition according to the invention is characterized in that 75% by mass of its ingredients is of natural origin relative to the total mass of the composition. [000436] In one embodiment, the lipstick composition according to the invention is characterized in that 90% by mass of its ingredients is of natural origin relative to the total mass of the composition. [000437] In one embodiment, the lipstick composition according to the invention is characterized in that the drying time at 20°C after application of the composition to the lips is less than or equal to 7 minutes. [000438] In one embodiment, the lipstick composition according to the invention is characterized in that the drying time of the composition on the lips is less than or equal to 6 minutes. [000439] In one embodiment, the lipstick composition according to the invention is characterized in that the drying time at 20°C after application of the composition to the lips is less than or equal to 5 min 30 sec. [000440] In one embodiment, the lipstick composition according to the invention is characterized in that the drying time at 20°C after application of the composition to the lips is equal to 6 minutes. [000441] In one embodiment, the lipstick composition according to the invention is characterized in that the drying time at 20°C after application of the composition to the lips is equal to 5 min 30 sec. [000442] In one embodiment, the lipstick composition according to the invention is characterized in that the drying time at 20°C after application of the composition to the lips is equal to 4 min 30 sec. [000443] The lipstick composition according to the invention is characterized in that its color is luminous and very intense. [000444] The satisfactory properties in terms of color and intensity reflect a good distribution of pigments on the lips. [000445] In addition to its color properties, the lipstick composition according to the invention has a satisfactory smoothing effect as well as satisfactory coverage and hold. [000446] In one embodiment, the lipstick composition according to the invention is characterized in that it is in the form of a solid, compacted, cast, pasty or liquid composition. [000447] In a preferred embodiment, the lipstick composition according to the invention is characterized in that it is in the form of a solid, compacted or cast composition. [000448] In one embodiment, the lipstick composition according to the invention is characterized in that it is in the form of a solid composition, for example in stick form. [000449] In one embodiment, the lipstick composition according to the invention is characterized in that it is in the form of a “non-transfer” lipstick or also called “long-lasting” lipstick. [000450] In one embodiment, the lipstick composition according to the invention is characterized in that it is in the form of a lip gloss or also called a lip “gloss”. [000451] Furthermore, the lipstick composition according to the invention can be manufactured by known methods, generally used in the cosmetic field. [000452] The invention also relates to a process for preparing a lipstick composition according to the present invention comprising the following steps: a) The production of a C10 Guerbet alcohol, 2-isopropyl-5 methylhexan-1-ol (CAS 2051-33-4) by a Guerbet synthesis from isoamyl alcohol (CAS 123-51-3). b) Mixing the product formed in step 1) with at least one C>10 biosourced alcohol to form a mixture of biosourced alcohols. c) Obtaining a volatile mixture of alkanes consisting of 2,3,6-trimethylheptane (CAS 4032-93-3) and a C>10 alkane, by a dehydration reaction followed by a hydrogenation reaction of the mixture of bio-sourced alcohols formed in step 2). d) Adding none, one or more alkanes to this volatile mixture of alkanes.e) The combination of the volatile mixture of alkanes obtained with at least one compound chosen from non-volatile oils, glossy oils, pasty fatty substances, gelling agents, film-forming polymers, waxes, pigments, dyes, and mixtures thereof. [000453] Even more specifically, the invention also relates to a process for preparing a lipstick composition according to the present invention comprising the following steps: a) The production of a Guerbet alcohol in CIO, 2-isopropyl-5-methylhexan-1-ol (CAS 2051-33-4) by a Guerbet synthesis from isoamyl alcohol (CAS 123-51-3). b) Mixing the product formed in step 1) with bio-sourced n-dodecanol to form a mixture of bio-sourced alcohols. c) Obtaining a volatile mixture of alkanes consisting of 2,3,6-trimethylheptane (CAS 4032-93-3) and n-dodecane (CAS 112-40-3) by a dehydration reaction followed by a hydrogenation reaction of the mixture of bio-sourced alcohols formed in step 2). d) Adding none, one or more alkanes to this volatile mixture of alkanes.e) The combination of the volatile mixture of alkanes obtained with at least one compound chosen from non-volatile oils, glossy oils, pasty fatty substances, gelling agents, film-forming polymers, waxes, pigments, dyes, and mixtures thereof. [000454] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that step 1 of the process, namely the synthesis of Guerbet, is carried out from raw materials of plant, bacterial or animal origin. [000455] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, is carried out using a base chosen from the group consisting of: KOH, NaOH, NaOCHs, KOCH3. [000456] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, is carried out using a catalyst chosen from the group comprising: copper derivatives such as PriCat Ou 50 / 8, at least one metal from group VIII, such as nickel, palladium, platinum, their derivatives and their mixtures. [000457] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, is carried out at temperatures between 150 and 300°C. [000458] In one embodiment, the method for preparing a lipstick composition defined according to the present invention is characterized in that the step 1 of the process, namely the Guerbet synthesis, is carried out at pressures between 1 and 15 bars. [000459] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that step 1 of the process, namely the synthesis of Guerbet, is carried out for a period of between 10 and 24 hours. [000460] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, makes it possible to obtain a mass percentage of branched CIO alcohol greater than or equal to 75%. [000461] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, makes it possible to obtain a mass percentage of branched CIO alcohol greater than or equal to 90%. [000462] In one embodiment, the method for preparing a lipstick composition defined according to the present invention is characterized in that step 1 of the method further comprises a step of purification by distillation to remove impurities. [000463] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, makes it possible to obtain a branched CIO alcohol whose percentage of carbon 14 ( 14C) is greater than or equal to 75% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000464] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, makes it possible to obtain a branched CIO alcohol whose percentage of carbon 14 ( 14 C) is greater than or equal to 90% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000465] In one embodiment, the method for preparing a lipstick composition defined according to the present invention is characterized in that the step 1 of the process, namely the Guerbet synthesis, makes it possible to obtain a branched CIO alcohol whose percentage of carbon 14 ( 14 C) is 100% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000466] In one embodiment, the method for preparing a lipstick composition defined according to the present invention is characterized in that in step 2 of the process at least one bio-sourced alcohol in C>12 chosen from the group consisting of: n-dodecanol, n-tetradecanol, and their mixtures is added. [000467] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that step 3 of the process is composed of a dehydration step then a hydrogenation step. [000468] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that the dehydration step of step 3 of the process is carried out using a catalyst chosen from the group consisting of alumina and its derivatives. [000469] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that the dehydration step of step 3 of the process is carried out using a catalytic support chosen from the group consisting of silica wool and its derivatives. [000470] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that the dehydration step of step 3 of the process is carried out at temperatures between 200 and 380°C. [000471] In one embodiment, the process for preparing a lipstick 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. [000472] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that the dehydration step of step 3 of the process makes it possible to obtain a conversion into alkene in branched CIO greater than or equal to 95%. [000473] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that the dehydration step of step 3 of the process makes it possible to obtain a conversion into alkene in branched CIO greater than or equal to 99%. [000474] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that the trimethylheptane obtained in the hydrogenation step of step 3 of the process is 2,3,6-trimethylheptane. [000475] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out using a catalyst comprising at least one metal from group VIII such as palladium, nickel, platinum, their derivatives and their mixtures. [000476] In one embodiment, the method for preparing a lipstick composition defined according to the present invention is characterized in that the step hydrogenation of step 3 of the process is carried out using a catalytic support chosen from the group consisting of silica wool and its derivatives. [000477] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out at temperatures between 100 and 250°C. [000478] In one embodiment, the process for preparing a lipstick 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. [000479] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is preceded by inerting with 15 bars of nitrogen in the reactor. [000480] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is preceded by inerting with 5 bars of nitrogen three times in the reactor. [000481] In one embodiment, the process for preparing a lipstick 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 from 2 to 15 bars of hydrogen to the reactor. [000482] In one embodiment, the process for preparing a lipstick 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 bars of hydrogen to the reactor. [000483] In one embodiment, the process for preparing a lipstick 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 bars of hydrogen to the reactor. [000484] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out for a period of 3 to 12 hours. [000485] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process is carried out for a period of 5 hours. [000486] In one embodiment, the method for preparing a lipstick composition defined according to the present invention is characterized in that the step hydrogenation of step 3 of the process makes it possible to obtain a conversion to 2,3,6-trimethylheptane greater than or equal to 95%. [000487] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that the hydrogenation step of step 3 of the process makes it possible to obtain a conversion to 2,3,6-trimethylheptane greater than or equal to 99%. [000488] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that step 3 of the process makes it possible to obtain a volatile alkane mixture defined according to the present invention. [000489] Surprisingly, the process for preparing a lipstick composition defined according to the present invention is characterized in that the process allows the production of a deodorized or odorless volatile alkane mixture. [000490] This organoleptic characteristic is conducive to its use in cosmetic compositions. [000491] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that step 4 of the process makes it possible to obtain a volatile alkane mixture defined according to the present invention. [000492] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that step 4 of the process makes it possible to obtain a volatile mixture of alkanes whose percentage of carbon 14 ( 14 C) is greater than or equal to 75% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000493] In one embodiment, the process for preparing a lipstick composition defined according to the present invention is characterized in that step 4 of the process makes it possible to obtain a volatile mixture of alkanes whose percentage of carbon 14 ( 14C) is greater than or equal to 90% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000494] In one embodiment, the method for preparing a lipstick composition defined according to the present invention is characterized in that the step 4 of the process makes it possible to obtain a volatile mixture of alkanes whose percentage of carbon 14 ( 14 C) is 100% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1. [000495] In one embodiment, the method for preparing a lipstick composition defined according to the present invention is characterized in that the step 5 of the process allows the obtaining of a lipstick composition comprising a volatile mixture of alkanes defined according to the present invention. EXAMPLES: [000496] The following examples are given to illustrate the invention. These examples being presented for illustration purposes only, the invention can in no way be limited to their subject matter. [000497] The percentages indicated in the tables below are mass percentages. Example 1: Protocol for preparing lipstick formulations: [000498] In order to prepare the reference lipstick (example 2), a lipstick according to the prior art (example 4) and lipsticks according to the invention (examples 6 and 7), the AEROSIL is dispersed in the volatile mixture of alkanes to form phase 1 of the lipstick formulation. [000499] Once phase 1 has dispersed, phase 2 is weighed in parallel in another container. The same operation is carried out for phase 3 and then phases 2 and 3 are mixed under magnetic stirring. [000500] The mixture of phases 2 and 3 is then placed on a heating plate until the RHEOPEARL KL2 is completely dispersed. The dispersed phase 1 is then added to the mixture of phases 2 and 3. [000501] Finally, phase 4 is heated alone on a hot plate until the wax has completely melted, then phase 4 is cooled in a cold water bath to 40°C and added to the mixture of dispersed phases 1, 2 and 3. [000502] The formulation of the lipsticks of examples 2, 4, 6 and 7 is obtained. Example 2: Composition and properties of the reference lipstick: Drying time of the reference rouae à lèyres formulation: [000503] The drying time at 20°C is measured after application to the lips of a panel of users, by carrying out tests to verify drying using a non-woven tissue from t0 to tx, a non-woven tissue marking test being carried out every 30 seconds. The formulation is considered dry when there is no more transfer. [000504] The reference lipstick obtained according to the protocol of example 1 has a drying time on the lips of 6 minutes. [000505] This drying time is satisfactory for a lipstick or lip gloss formulation. Application characteristics of the reference wheel formulation: To establish this study, the lipstick formulation was tested by a panel of users. [000506] In the context of a meal, the reference lipstick has good staying power even if it is sometimes erased in the center (but the outline is still present). [000507] Regarding the other application characteristics, the study via the user panel showed that the reference lipstick is transfer-free, has good adhesion and good coverage. [000508] However, it remains slightly sticky. Finally, the reference lipstick has a satisfactory hold for 5 hours. Example 3: Stability of the composition of the reference lipstick from Example 2: [000509] The table in Example 3a above shows the stability of the reference lipstick formulation as a function of temperature. This stability of the tests is evaluated at different times by visual observation by the operator. [000510] It is noted that the reference formulation is stable at low temperature and shows slight instability at 50°C from 72 hours. [000511] However, it is noted that this slight instability at 50°C does not increase during the 1-week and 2-week observations. [000512] The table in Example 3b above describes the stability of the reference lipstick formulation to centrifugation by visual observation by the operator. [000513] In view of the results shown in Table 3b, it can be deduced that this lipstick formulation is stable to centrifugation for the speeds and times of the tests carried out. [000514] From the stability results of examples 3a and 3b, it can be deduced that the reference lipstick formulation exhibits satisfactory stability even if a slight instability is noted during storage at high temperature (50°C). Example 4: Composition and properties of a lipstick comprising a volatile mixture of alkanes according to the prior art: [000515] In the composition of Example 4 of a lipstick comprising a volatile mixture of alkanes according to the prior art, patent application EP3773432A1, the isododecane (CAS 13475-82-6) present in phase 1 of the reference formula of Example 2 was substituted by a volatile mixture of alkanes consisting of 30% n-decane (CAS 124-18-5) and 70% n-dodecane (CAS 112-40-3). Drying time of the formula in example 4: [000516] The lipstick of example 4 obtained according to the protocol of example 1 has a drying time on the lips of 14 minutes. [000517] The drying time on the lips is not satisfactory for a lipstick formulation according to the present invention. Application characteristics of the formula of example 4: [000518] To establish this study, the lipstick formulation according to the prior art was tested by a panel of users. [000519] Thus, in the context of a meal, the lipstick according to the prior art has good hold even if it is sometimes erased in the center. However, the contours are always present. [000520] Concerning the other application characteristics of the lipstick according to the prior art, the study via the user panel showed that it is transfer-free, has average adhesion and correct coverage. [000521] A comparison between the lipstick formula according to the prior art and the reference formula, carried out on samples and evaluated via this same panel of users, shows that the lipstick according to the prior art has a lower hold than that of the reference lipstick. However, this study also showed that the lipstick according to the prior art is more difficult to apply due to its high fluidity. In addition, its properties such as its drying time, its grip and its coverage are less satisfactory than those of the reference lipstick formulation. Example 5: Stability of the lipstick composition according to the prior art of Example 4 [000522] The table in Example 5a above shows the stability of the lipstick formulation according to the prior art as a function of temperature. This stability of the tests is evaluated at different times by visual observation by the operator. [000523] It is noted that the formulation according to the prior art is stable at low temperature and exhibits slight instability at 50°C from 72 hours. However, it is noted that this slight instability at 50°C does not increase during the observations carried out at 1 week and 2 weeks. [000524] The table of Example 5b above describes the stability of the prior art lipstick formulation to centrifugation by visual observation of the operator. [000525] In view of the results shown in Table 5b, it can be deduced that this lipstick formulation is stable to centrifugation for the speeds and times of the tests carried out. [000526] From the stability results of examples 5a and 5b, it can be deduced that the lipstick formulation according to the prior art exhibits satisfactory stability even if a slight instability is noted during storage at high temperature (50°C). Example 6: Composition and properties of a lipstick according to the present invention: [000527] In the composition of Example 6 of a lipstick according to the invention, the isododecane (CAS 13475-82-6) present in phase 1 of the reference formula (Example 2) has been substituted by a volatile mixture of alkanes as defined in the present invention. It consists of 30% of 2,3,6-trimethylheptane (CAS 4032-93-3) and 70% of n-dodecane (CAS 112-40-3). [000528] Drying time of the formula of example 6: [000529] The lipstick of example 6 obtained according to the protocol of example 1 has a drying time on the lips of 7 minutes. [000530] The drying time on the lips is satisfactory for a lipstick or lip gloss formulation. [000531] Characteristics of application of the formula of example 6: [000532] To establish this study, the lipstick formulation was tested by a panel of users. [000533] The lipstick of example 6 has a satisfactory hold of 5 hours. [000534] Furthermore, in the context of a meal, the lipstick of example 6 has good staying power even if it is sometimes erased in the center. However, the contours are still present. [000535] Regarding the other application characteristics, the study via the user panel showed that it is transfer-free, has good adhesion and good coverage. [000536] A comparison between the lipstick formula according to the invention and the reference formula, carried out on samples and evaluated via this same panel of users, shows that the lipstick formula according to the invention has a more intense color development. In particular, it is brighter and therefore less dull than the reference formula. [000537] Comparative photographs taken during this study confirm this difference in light intensity. In terms of application, the study via the user panel showed that the lipstick according to the invention has a smoothing effect, coverage and hold similar to the reference lipstick. Example 7: Stability of the lipstick composition (according to the present invention) of Example 6 [000538] In the table of example 7a above are grouped data on the stability of the lipstick formulation according to the present invention as a function of temperature. This stability is evaluated at different times by visual observation by the operator. [000539] It is noted that the formulation according to the present invention is stable both when stored at 4°C and 50°C, unlike the reference formula of example 2. [000540] In the table of example 7b above are grouped data on the stability of the lipstick formulation according to the invention during centrifugation evaluated by visual observation by the operator. [000541] In view of the results shown in Table 7b, it can be deduced that this lipstick formulation is stable to centrifugation for the speeds and times of the tests carried out. From the stability results of Examples 7a and 7b, it can be deduced that this lipstick formulation according to the present invention has satisfactory stability, or even better stability at high temperature than the reference lipstick formulation of Example 2. Example 8: Composition and properties of a lipstick according to the present invention: [000542] In the composition of Example 8 of a lipstick according to the invention, the isododecane (CAS 13475-82-6) present in phases 1 and 2 of the reference formula (Example 2) has been substituted by the volatile mixture of alkanes as defined in the present invention. [000543] In this example, the volatile alkane mixture of phase 1 consists of 35% 2,3,6-trimethylheptane (CAS 4032-93-3) and 65% n-dodecane (CAS 112-40-3). [000544] In this example, a volatile mixture of alkanes according to the invention is used instead of isododecane to prepare a bentone gel containing disteardimonium hectorite and triethyl citrate in phase 2. [000545] For the purposes of this example, this bentone gel comprises a volatile mixture of alkanes consisting of 15% 2,3,6-trimethylheptane (CAS 4032-93-3) and 85% n-dodecane (CAS 112-40-3). Drying time of the formula in example 8: [000546] The lipstick of example 8 obtained according to the protocol of example 1 has a drying time on the lips of 5 minutes. [000547] The drying time on the lips is satisfactory for a lipstick or lip gloss formulation. Application characteristics of the formula of example 8: [000548] To establish this study, the lipstick formulation was tested by a panel of users. [000549] The lipstick of example 8 has a satisfactory hold of 6 hours. [000550] Furthermore, in the context of a meal, the lipstick of example 8 has good staying power. [000551] Regarding the other application characteristics, the study via the user panel showed that it is transfer-free, has good adhesion and good coverage. [000552] A comparison between the lipstick formula according to the invention and the reference formula, carried out on samples and evaluated via this same panel of users, shows that the lipstick formula according to the invention has a more intense color development. In particular, it is brighter and therefore less dull than the reference formula. [000553] Comparative photographs taken during this study confirm this difference in light intensity. [000554] In terms of application, the study via a panel of users showed that the lipstick according to the invention has a smoothing effect, coverage and hold similar to the reference lipstick. Example 9: Composition of a lip gloss according to the present invention [000555] In order to formulate the composition of the lip gloss according to the present invention, the procedure is set out below: [000556] The pigments of phase 1 are mixed with octyldodecanol to obtain a paste. Then, the bentone gel obtained by combining a volatile mixture of alkanes according to the present invention, a stearalkonium bentonite and triethyl citrate is added. Finally, all of phase 1 is dispersed. [000557] In the context of this example, the volatile mixture of alkanes as defined in the present invention constitutes more than 80% by mass relative to the total mass of the bentone gel composition. [000558] In a second step, phase 2 of the composition of example 10 is placed in a water bath at a temperature of 80°C until the waxes are in a liquid state. [000559] Phase 2 is allowed to cool to 40°C and then mixed with phase 1. [000560] In this example, the volatile alkane mixture consists of 20% 2,3,6-trimethylheptane (CAS 4032-93-3) and 80% n-dodecane (CAS 112-40-3). [000561] The lip gloss composition of Example 9 has a viscosity at 40°C of 2293 cSt. [000562] The lip gloss composition of Example 9 has a satisfactory gloss effect. Example 10: Composition of a lipstick with a high naturalness index according to the invention [000563] In order to prepare the lipstick according to the invention of examples 10 and 11, phase 1 is dispersed with a Turax. [000564] Once phase 1 is dispersed, phase 2 is weighed into another container and then also stirred separately with a Turax. This phase 2 is then added to the dispersed phase 1 and mixed with a Turax. Phase 3 is added after weighing it. Phases 1, 2 and 3 are mixed with a Turax. [000565] Phases 4 and 5 are weighed into a closed glass container and then heated with moderate stirring until the wax has completely melted. Phases 4 and 5 are cooled to 40°C and then mixed with the other phases 1, 2 and 3. [000566] Finally, phase 6 is weighed and added to the other phases (1, 2, 3, 4 and 5). The mixture is stirred with a Turax. The formulation is then cooled to room temperature. [000567] The composition of the formulation of the lipstick with a high naturalness index according to the invention is: [000568] In the composition of Example 10, the lipstick according to the invention comprises a volatile mixture of alkanes consisting of 35% 2,3,6-trimethylheptane (CAS 4032-93-3), 15% isododecane (CAS 13475-82-6) and 50% n-dodecane (CAS 112-40-3). [000569] It is interesting to note that with a mass percentage of 15% of isododecane (CAS 13475-82-6) relative to the total mass of the volatile mixture of alkanes according to the present invention, the lipstick according to the invention of example 10 has a naturalness index of 85% according to the ASTM D6866 standard. Example 11: Composition of a lipstick with a high naturalness index according to the invention [000570] As a reminder, this formulation is prepared according to a protocol similar to that set out in the previous example. [000571] The composition of the lipstick with a high naturalness index according to the invention is: [000572] In the composition of Example 11, the lipstick according to the invention comprises a volatile mixture of alkanes consisting of 35% 2,3,6-trimethylheptane (CAS 4032-93-3), 15% isododecane (CAS 13475-82-6) and 50% n-dodecane (CAS 112-40-3). [000573] In the context of this example, the trimethylsiloxicilicate constituent present in phase 1 of example 11 was substituted by making an adjustment of the biosourced constituents of the formulation. [000574] It is interesting to note that with a mass percentage of 15% of isododecane (CAS 13475-82-6) relative to the total mass of the volatile mixture of alkanes according to the present invention, the lipstick according to the invention has a naturalness index of 90% according to the ASTM D6866 standard. Example 12: Biodegradability of volatile mixtures of alkanes used in the lipstick compositions according to the invention. [000575] The biodegradability of a volatile mixture of alkanes used in the lipstick compositions according to the invention was measured according to the OECD 301F method. For comparison, the degradation of isododecane (CAS 13475-82-6) was also measured with this method. [000576] The OECD 301F method allows the ease of biodegradation of a substance to be characterized by a manometric respirometry test. [000577] The volatile mixture of alkanes tested has a biodegradability of 58% according to the OECD 301F method, whereas isododecane (CAS 13475-82-6) is not biodegradable according to this method.

Claims

DEMANDS 1. Lipstick composition characterized in that it comprises a volatile mixture of alkanes, said volatile mixture of alkanes comprising: a) From 20 to 100% by mass of a fraction A which comprises at least one branched alkane in C< 10; b) From 0 to 80% by mass of a fraction B which comprises at least one linear or branched alkane in C>10; and in that said volatile mixture of alkanes has a flash point below 55°C measured according to ASTM D93 and represents a mass percentage greater than or equal to 2% relative to the total mass of the composition.

2. Lipstick composition according to claim 1 characterized in that it is a non-transfer or low-transfer lipstick.

3. Non-transfer lipstick composition according to claim 1 or 2 characterized in that it comprises a volatile mixture of alkanes, said volatile mixture of alkanes comprising: a) From 20 to 100% by mass of a fraction A which comprises at least one branched C<10 alkane; b) From 0 to 80% by mass of a fraction B which comprises at least one linear or branched C>10 alkane; and in that said volatile mixture of alkanes has a flash point below 55°C measured according to ASTM D93 and represents a mass percentage greater than or equal to 25% relative to the total mass of the composition.

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

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

6. Lipstick composition according to any one of the preceding claims characterized in that the volatile mixture of alkanes exhibits a biodegradability of at least 50% according to OECD method 301F.

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

8. Lipstick composition according to any one of the preceding claims characterized in that at least one branched C< 10 alkane of said volatile mixture of alkanes is a branched Cio alkane.

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

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

11. Lipstick composition according to any one of the preceding claims characterized in that at least one linear or branched C>10 alkane of said volatile mixture of alkanes is selected from the group comprising Cn, Ci2, Ci3, C, Cis, Ci6 alkanes and mixtures thereof.

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

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

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

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

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

17. Lipstick composition according to any one of the preceding claims characterized in that the drying time after application at 20°C to the lips of the composition is less than or equal to 5 minutes 30 seconds.

18. A process for preparing a lipstick composition according to any one of the preceding claims comprising the following steps: a. The production of a Guerbet alcohol in C10, 1-Hexanol, 2-isopropyl-5-methyl (CAS 2051-33-4) by a Guerbet synthesis from isoamyl alcohol (CAS 123-51-3). b. Mixing the product formed in step 1) with at least one bio-based alcohol of C>10 to form a bio-based alcohol mixture. c. Obtaining a volatile alkane mixture consisting of 2,3,6-trimethylheptane (CAS 4032-93-3) and a C>10 alkane, by a dehydration reaction followed by a hydrogenation reaction of the bio-based alcohol mixture formed in step 2). d. Adding none, one, or more volatile alkanes to this volatile alkane mixture. e. Combining this volatile alkane mixture with at least one compound selected from non-volatile oils, gloss oils, paste-like fats, gelling agents, film-forming polymers, waxes, pigments, colorants, and mixtures thereof.

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