Compositions comprising glycolipids, taurine salt surfactants and amino acid surfactants

Abstract

The present invention relates to a composition comprising: (a) at least one glycolipid; (b) at least one taurine salt surfactant in an amount of at least 0.6 wt% relative to the total weight of the composition; (c) at least one amino acid surfactant; and (d) water. The composition according to the present invention can be used as a cosmetic composition having improved stability.

Description

Technical Field

[0001] The present invention relates to a composition comprising at least one glycolipid, at least one taurate surfactant and at least one amino acid surfactant, preferably a cosmetic composition comprising the above ingredients, more preferably a rinse-off cosmetic composition comprising the above ingredients. Background Art

[0002] Eco-friendly cosmetic formulations designed and developed with environmental concerns in mind are becoming a major goal in addressing global challenges.

[0003] Therefore, it is crucial to come up with more sustainable compositions, preparation methods, and ingredients to address these environmental issues.

[0004] In this context, it is particularly important to develop new cosmetic compositions with a better carbon footprint, in particular by promoting the use of renewable raw materials and / or materials with a good natural index and / or materials of natural origin, more particularly of plant origin, while reducing the use of compounds of petrochemical origin.

[0005] Biosurfactants, such as glycolipids (e.g., rhamnolipids), are naturally derived materials known to have unique biological activities, such as anti-inflammatory effects, anti-allergic effects, antibacterial effects, etc. For example, glycolipids are known to have anti-inflammatory effects and may be used on keratinous materials, such as skin.

[0006] For example, JP-T-2015-507626 discloses a composition comprising water, at least one biosurfactant and at least one fatty acid, wherein the fraction of the sum of all surfactants in the composition is 1 wt % to 30 wt %, and the fraction of the fatty acid is 0.1 wt % to 20 wt % based on the sum of the fatty acid and the surfactant.

[0007] However, although glycolipids have several unique biological activities, there is a problem that compositions containing glycolipids may be less stable when the temperature changes.

[0008] Therefore, there is a need to provide a composition comprising glycolipids which exhibits improved stability to temperature changes. Summary of the invention

[0009] It is an object of the present invention to provide a composition comprising at least one glycolipid which has an improved stability to temperature changes.

[0010] The above object of the present invention can be achieved by a composition comprising:

[0011] (a) at least one glycolipid;

[0012] (b) at least one taurate surfactant in an amount of at least 0.6% by weight relative to the total weight of the composition;

[0013] (c) at least one amino acid surfactant; and

[0014] (d) Water.

[0015] The (a) glycolipid may be selected from rhamnolipids.

[0016] The amount of (a) glycolipid may be 0.5 to 20 wt %, preferably 1 to 15 wt %, more preferably 2 to 10 wt %, relative to the total weight of the cosmetic composition.

[0017] The (b) taurate surfactant can be represented by formula (I):

[0018]

[0019] in

[0020] R 7 (C8-C 22 )alkyl;

[0021] R 8 is H or (C1-C4) alkyl;

[0022] R 9 and R 10 are each independently H or (C1-C4)alkyl; and

[0023] M + is the sodium, potassium or ammonium cation.

[0024] The amount of the (b) taurate surfactant may be 0.6 to 10 wt %, preferably 0.75 to 5 wt %, more preferably 0.9 to 3 wt %, relative to the total weight of the composition.

[0025] The (c) amino acid surfactant can be represented by formula (A):

[0026]

[0027] in:

[0028] Z represents a saturated or unsaturated, linear or branched hydrocarbon group having 8 to 22 carbon atoms,

[0029] X is hydrogen or methyl,

[0030] n is 0 or 1,

[0031] Y is selected from hydrogen, -CH3, -CH(CH3)2, -CH2CH(CH3)2, -CH(CH3)CH2CH3, -CH2C6H5, -CH2C2H4OH, -CH2OH, -CH(OH)CH3, -(CH2)4NH2, -(CH2)3NHC(NH)NH2, -CH2C(O)O - M + , -(CH2)2C(O)OH, -(CH2)2C(O)O - M + ,as well as

[0032] M is a salt-forming cation (where COO is the counter anion), such as sodium, potassium, ammonium or triethanolamine.

[0033] The amount of the (c) amino acid surfactant may be 0.5 to 20 wt %, preferably 1 to 15 wt %, more preferably 2 to 10 wt %, relative to the total weight of the composition.

[0034] The amount of (d) water may be 50 to 99 wt %, preferably 60 to 97 wt %, more preferably 70 to 95 wt %, relative to the total weight of the composition.

[0035] The weight ratio of (b) taurate surfactant to (c) amino acid surfactant contained in the composition may be 3:1 to 1:10, preferably 2:1 to 1:8, more preferably 1:1 to 1:5.

[0036] The total amount of (a) glycolipid, (b) taurate surfactant and (c) amino acid surfactant contained in the composition may be 1 wt % to 25 wt %, preferably 3 wt % to 20 wt %, more preferably 5 wt % to 15 wt % relative to the total weight of the composition.

[0037] The composition may also comprise at least one monobasic non-polymeric acid or a salt thereof, preferably a monobasic non-polymeric carboxylic acid, more preferably a monobasic hydroxy acid such as lactic acid and salicylic acid.

[0038] The pH of the composition may be 4 to 8, preferably 4.5 to 7.5, more preferably 5 to 7.

[0039] The composition may be a cleansing composition, preferably a cleansing composition for the skin, more preferably a cleansing composition for the face.

[0040] The composition may contain at least one higher fatty acid in an amount of 1 wt % or less, preferably 0.5 wt % or less, more preferably 0.3 wt % or less, relative to the total amount of the composition.

[0041] The invention also relates to a non-therapeutic cosmetic method for caring for and / or cleansing keratinous materials such as the skin, which comprises applying a composition according to the invention to the keratinous materials and optionally removing said composition from the keratinous materials. DETAILED DESCRIPTION

[0042] After in-depth research, the inventors surprisingly found that a composition comprising (a) at least one glycolipid, (b) a certain amount of at least one taurate surfactant, and (c) at least one amino acid surfactant can provide a composition that is stable to temperature changes, thereby achieving the purpose of the present invention.

[0043] Therefore, the composition according to the invention is a composition comprising:

[0044] (a) at least one glycolipid;

[0045] (b) at least one taurate surfactant in an amount of at least 0.6% by weight relative to the total weight of the composition;

[0046] (c) at least one amino acid surfactant; and

[0047] (d) Water.

[0048] The compositions, methods and uses according to the invention will be explained below in a more detailed manner.

[0049]

Composition

[0050] The composition is preferably a cosmetic composition, more preferably a non-therapeutic cosmetic composition for keratinous substances. Keratinous substances here refer to materials containing keratin as the main constituent element, examples of which include skin, scalp, lips, etc. In a preferred embodiment, the composition according to the present invention is a skin cosmetic composition. The composition according to the present invention can be intended for application to keratinous substances, preferably skin, especially facial skin.

[0051] In one embodiment of the present invention, the composition according to the invention is a rinse-off composition, more preferably a rinse-off composition for caring for and / or cleansing keratinous materials. The rinse-off composition can be removed from keratinous materials such as the skin, preferably with water.

[0052] The composition according to the invention may more preferably be a rinse-off cleansing composition. The rinse-off cleansing composition can remove keratin substances such as sebum and / or makeup from the skin, and the rinse-off cleansing composition can be removed from the keratin substances, preferably with water.

[0053] The form of the composition according to the present invention is not particularly limited. Generally, the composition according to the present invention is preferably at room temperature (25° C.) and atmospheric pressure (10 5 The composition may be in various forms, such as solution, aqueous solution, toner, micellar water, lotion, milky lotion, cream, gel, liquid gel, paste, serum, suspension, dispersion, fluid, milk, emulsion (O / W or W / O form), etc. Preferably, the composition according to the present invention is in the form of an aqueous solution or a gel.

[0054] Preferably, the form of the present invention is an aqueous preparation, such as an aqueous solution, a toner, a serum or micellar water.

[0055] The composition according to the present invention is stable under various temperature conditions, for example from very low temperatures (e.g. -5°C) to room temperature (25°C). In addition, the composition according to the present invention is stable under a wide range of temperature changes, for example from -20°C to 20°C. The term "stable" herein means that the composition retains its original uniformity or homogeneity over time without causing sedimentation.

[0056] The composition according to the present invention comprises (a) at least one glycolipid, (b) at least one taurate surfactant, (c) at least one amino acid surfactant, and (d) water. The ingredients in the composition will be described in detail below.

[0057] (Glycolipids)

[0058] The composition according to the present invention comprises (a) at least one glycolipid. A single type of glycolipid may be used, or two or more different types of glycolipids may be used in combination.

[0059] The term "glycolipid" is understood to mean a compound formed by a lipid to which one or more sugar compounds are attached.

[0060] (a) The glycolipid may be selected from rhamnolipids, sophorolipids, glucose lipids, trehalolipids, cellobiose lipids and mixtures thereof.

[0061] (a) The glycolipid is preferably selected from rhamnolipid, sophorolipid and a mixture thereof, more preferably rhamnolipid.

[0062] Glucose lipids:

[0063] (a) The glycolipid may be a glucose lipid, which contains a glucose moiety and may be represented by the general formula (I):

[0064] in:

[0065] -R 1 represents a hydrogen atom or a cation,

[0066] -p represents an integer from 1 to 4, and

[0067] -q represents an integer from 4 to 10, preferably equal to 6.

[0068] Glucose lipids can be produced by the bacterium Alcaligenes sp. MM1.

[0069] Suitable fermentation methods are reviewed by M. Schmidt in his doctoral thesis (1990, Technical University of Braunschweig) and by Schulz et al. (1991) Z. Naturforsch., 46C, 197-203. Glucose lipids are recovered from the fermentation broth by solvent extraction using ether or dichloromethane:methanol or chloroform:methanol mixtures.

[0070] Sophorolipids

[0071] (a) The glycolipid may be a sophorolipid, which contains a sophorose moiety and may be represented by the general formula (II):

[0072]

[0073] in:

[0074] -R 3 and R 4 each represents a hydrogen atom or an acetyl group,

[0075] -R 5 represents a saturated or unsaturated, hydroxylated or non-hydroxylated hydrocarbon group having 1 to 9 carbon atoms, preferably a methyl group,

[0076] -R 6 represents a saturated or unsaturated, hydroxylated or non-hydroxylated hydrocarbon group having 1 to 19 carbon atoms,

[0077] The condition is that the group R 5 and R 6 The total number of carbon atoms does not exceed 20, preferably 14 to 18.

[0078] Sophorolipids can be either 7 represents a hydrogen atom, R 8 represents the open-chain free acid form of a hydroxyl group OH, either 7 and R 8 A lactone ring is formed between the two, and its lactone form as shown in formula (III) is incorporated into the composition according to the present invention:

[0079]

[0080] in:

[0081] -R 3 , R 4 , R 5 and R 6 As defined above,

[0082] The condition is R 3 and R 4 At least one of them represents an acetyl group.

[0083] Sophorolipids can be produced by yeast cells, such as Torulopsis apicola and Torulopsis bombicola cells. The fermentation process typically uses sugars and alkanes as substrates.

[0084] Suitable fermentation methods are reviewed in AP Tulloch, JFT Spencer and PAJ Gorin, Can. J. Chem. (1962), 40, 1326 and U. Gobbert, S. Lang and F. Wagner, Biotechnology Letters (1984), 6 (4), 225. The resulting product is a mixture of various open-chain sophorolipids and sophorolipid lactones, which can be used as a mixture or can be isolated in the desired form.

[0085] As sophorolipids, use may be made of, for example, the products sold under the name Sopholiance S by Givaudan and the products sold under the name BioToLife by BASF.

[0086] Trehalose lipids

[0087] (a) The glycolipid may be a trehalose lipid, which contains a trehalose moiety and may be represented by the general formula (IV):

[0088] in:

[0089] -R 9 , R 10 and R 11 Each represents a saturated or unsaturated, hydroxylated or non-hydroxylated hydrocarbon group having 5 to 13 carbon atoms.

[0090] Trehalose lipids can be produced by bacterial fermentation using the marine bacterium Arthrobacter sp. Ek 1 or the freshwater bacterium Rhodococcus erythropolis. Suitable fermentation methods are provided by Ishigami et al. (1987), J. Jpn. Oil Chem. Soc., 36, 847-851, Schultz et al. (1991), Z. Naturforsch., 46C, 197-203 and Passeri et al. (1991), Z. Naturforsch., 46C, 204-209.

[0091] Cellobiose

[0092] (a) The glycolipid may be a cellobiose lipid, which contains a cellobiose fragment and may be represented by the general formula (V):

[0093]

[0094] in:

[0095] -R 1 represents a hydrogen atom or a cation,

[0096] -R 12 represents a saturated or unsaturated, hydroxylated or non-hydroxylated hydrocarbon group having 9 to 15 carbon atoms, preferably 13 carbon atoms,

[0097] -R 13 represents a hydrogen atom or an acetyl group; and

[0098] -R 14 represents a saturated or unsaturated, hydroxylated or non-hydroxylated hydrocarbon group having 4 to 16 carbon atoms.

[0099] Cellobiose lipids can be produced by fungal cells of the genus Ustilago. A suitable fermentation method is provided by Frautz, Lang and Wagner (1986), Biotech. Letts., 8, 757-762.

[0100] Rhamnolipids:

[0101] (a) The glycolipid may be a rhamnolipid.

[0102] The composition according to the invention preferably comprises one or more rhamnolipids.

[0103] Rhamnolipids are glycolipids produced by various bacterial species. They consist of one rhamnose fragment (monorhamnolipids) or two rhamnose fragments (disorhamnolipids) linked by glycosidic bonds to one, two or three β-hydroxylated fatty acid chains, which are linked to each other by ester bonds.

[0104] More specifically, these mono- and di-rhamnolipids correspond to the following formula (VI):

[0105]

[0106] in:

[0107] -m represents an integer equal to 2, 1, or 0,

[0108] -n represents an integer equal to 1 or 0, and

[0109] - R1 and R2 each independently represent identical or different hydrocarbon radicals having 2 to 24 carbon atoms, preferably 5 to 13 carbon atoms, which are branched or unbranched, substituted or unsubstituted, in particular hydroxy-substituted, and saturated or unsaturated, preferably mono-, di- or tri-unsaturated alkyl radicals.

[0110] Thus, when n is equal to 0, formula (VI) protects a monorhamnolipid, and when n is equal to 1, it protects a disrhamnolipid.

[0111] The composition according to the invention preferably comprises at least one dirhamnolipid.

[0112] The composition according to the invention preferably comprises at least one dirhamnolipid of formula (VI), wherein:

[0113] -m represents an integer equal to 2, 1 or 0;

[0114] -n represents an integer equal to 1; and

[0115] - R1 and R2 each independently represent the same or different hydrocarbon radicals having 2 to 24 carbon atoms, preferably 5 to 13 carbon atoms, which are branched or unbranched, substituted or unsubstituted, in particular hydroxy-substituted, and saturated or unsaturated, preferably mono-, di- or tri-unsaturated alkyl radicals, and salts thereof, solvates thereof and optical isomers thereof.

[0116] The glycosidic bond between two rhamnose moieties may be in the α or β configuration, preferably in the α configuration.

[0117] In the context of the present invention,

[0118] The salts of the disrhamnolipids of the formula (VI) are more particularly their carboxylates with organic or inorganic cations, in particular with cations selected from the group consisting of sodium, potassium, calcium and ammonium.

[0119] - a solvated form of the dirhamnolipid of formula (VI) is more particularly a form solvated by one or more water molecules or organic solvent molecules, for example a hydrate or solvate of a linear or branched alcohol such as ethanol or isopropanol, the optically active carbon atom of the fatty acid preferably being in the form of the R enantiomer, and

[0120] - The term "alkyl" group refers to a saturated, straight-chain or branched aliphatic group; for example, a C1-C2-alkyl group having a straight-chain or branched hydrocarbon chain of 1 to 20 carbon atoms. 20 Alkyl is more particularly methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl or eicosyl.

[0121] The composition according to the invention preferably comprises at least one dirhamnolipid of formula (VI), wherein:

[0122] -m represents an integer equal to 2, 1 or 0;

[0123] -n represents an integer equal to 1; and

[0124] -R1 and R2 are the same or different and are selected from the group consisting of pentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, undecenyl, dodecenyl and tridecenyl and the group consisting of -(CH2) o A CH3 radical, wherein o represents an integer from 1 to 23, in particular from 3 to 15, more particularly from 4 to 12.

[0125] According to one embodiment of the invention, the composition according to the invention comprises at least one dirhamnolipid of formula (VI) in which m is equal to 1.

[0126] According to one embodiment of the invention, the composition according to the invention comprises a mixture of at least two, preferably at least three, dirhamnolipids of the general formula (VI), wherein m is preferably equal to 1.

[0127] According to another embodiment of the invention, the composition according to the invention comprises a mixture comprising at least one monorhamnolipid.

[0128] More preferably, the composition according to the invention comprises at least one dirhamnolipid of the following formula (VII):

[0129]

[0130] in:

[0131] - m represents an integer equal to 2, 1 or 0; preferably, m is equal to 1,

[0132] -n represents an integer equal to 1,

[0133] -R1 is -(CH2) p -CH3 group, wherein p is an integer from 1 to 23, preferably from 4 to 12,

[0134] -R2 is -(CH2) q -CH3 group, wherein q is an integer from 1 to 23, preferably from 4 to 12,

[0135] and its salts, solvates and optical isomers.

[0136] By way of illustration but not limitation of the dirhamnolipids of formula (VII) that may be suitable for use in the present invention, mention may in particular be made of compounds of formula di-RL-CXCY, for example as defined in Table 1 below.

[0137] The formula di-RL-CXCY is an alternative way of writing in order to represent a di-rhamnolipid (di-RL) functionalized with two groups R1 and R2 represented by the symbols CX and CY respectively, with integers X and Y being equal to p+4 and q+4 ​​respectively.

[0138]

surface

[0139] Compound Di-RL-CXCY p q 1 diRL-C8C8 4 4 2 diRL-C8C10 4 6 3 diRL-C10C8 6 4 4 diRL-C10C10 6 6 5 diRL-C10C12 6 8 6 diRL-C12C10 8 6 7 diRL-C12C12 8 8 8 diRL-C12C14 8 10 9 diRL-C14C12 10 8 10 diRL-C14C14 10 10 11 diRL-C14C16 10 12 12 diRL-C16C14 12 10 13 diRL-C16C16 12 12

[0140] According to a preferred embodiment, the composition according to the invention comprises at least one dirhamnolipid of formula (VII) in which p and q are identical and equal to 6, m equal to 1, also called di-RL-C10C10, or one of its salts, solvates and optical isomers.

[0141] Preferably, the dirhamnolipid of formula (VII) wherein p and q are identical and equal to 6 and m equal to 1 is present in the composition according to the invention in a proportion of at least 50% by weight and preferably from 51% to 85% by weight relative to the total weight of the rhamnolipids.

[0142] According to another embodiment, the composition according to the invention comprises at least one dirhamnolipid of formula (VII) in which m is equal to 1, p is equal to 6 and q is equal to 8.

[0143] According to another embodiment, the composition according to the invention comprises at least one dirhamnolipid of formula (VI) in which n and m are equal to 1, R1 represents -(CH2) o A CH3 group, wherein o is an integer from 4 to 12, and R2 is selected from pentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, undecenyl, dodecenyl and tridecenyl; preferably, R1 represents a -(CH2)6CH3 group and R2 represents a nonenyl group.

[0144] According to another preferred embodiment, the composition according to the invention comprises a mixture of at least two, in particular at least three, dirhamnolipids of formula (VI) or formula (VII) selected from:

[0145] - a dirhamnolipid of formula (VII), wherein p and q are identical and equal to 6, and m is equal to 1;

[0146] - a disrhamnolipid of formula (VII) in which m is equal to 1, p is equal to 6, q is equal to 8; and - at least one disrhamnolipid of formula (VI) in which n and m are equal to 1, R1 represents -(CH2) o A CH3 group, wherein o is an integer from 4 to 12, and R2 is selected from pentenyl, hexenyl, heptenyl, octenyl, nonenyl, decenyl, undecenyl, dodecenyl and tridecenyl; preferably, R1 represents a -(CH2)6CH3 group and R2 represents a nonenyl group.

[0147] Preferably, the composition according to the invention comprises a mixture of at least two, in particular at least three, dirhamnolipids of formula (VI) or formula (VII), selected from:

[0148] at least 50% by weight and preferably from 51% to 85% by weight, relative to the total weight of the rhamnolipids, of a dirhamnolipid of formula (VII) in which p and q are identical and equal to 6 and m is equal to 1;

[0149] 0.5% to 25% by weight, preferably 5% to 15% by weight, relative to the total weight of rhamnolipids, of a dirhamnolipid of formula (VII) in which p is equal to 6, q is equal to 8 and m is equal to 1; and

[0150] - 0.5% to 15% by weight, preferably 3% to 12% by weight, preferably 5% to 10% by weight, relative to the total weight of the rhamnolipids, of a dirhamnolipid of formula (VI) in which n and m are equal to 1, R1 represents a -(CH2)6CH3 group and R2 represents a nonenyl group.

[0151] As mentioned above, rhamnolipids are usually prepared by methods known to those skilled in the art starting from bacterial producers such as Pseudomonas.

[0152] Suitable fermentation methods are reviewed by D. Haferburg, R. Hommel, R. Claus and HP Kleber in Adv. Biochem. Ing. / Biotechnol. (1986), 33, 53-90, and by F. Wagner, H. Bock and A. Kretschmar in Fermentation (ed. RM Lafferty) (1981), 181-192, Springer Verlag, Vienna.

[0153] As rhamnolipid, use may be made of the product sold under the name Rheance One by Evonik (INCI name: Glycolipid).

[0154] The amount of (a) glycolipid in the composition according to the present invention may be 0.5 wt % or more, preferably 1 wt % or more, more preferably 2 wt % or more, and / or may be 20 wt % or less, preferably 15 wt % or less, more preferably 10 wt % or less, relative to the total weight of the composition. Any combination of the upper and lower limit values ​​is applicable.

[0155] The amount of (a) glycolipid in the composition according to the present invention may be 0.5 to 20 wt %, preferably 1 to 15 wt %, more preferably 2 to 10 wt %, relative to the total weight of the cosmetic composition.

[0156] In the context of this specification, any combination of the above-mentioned upper and lower limits can be used to express a preferred range of the amount.

[0157] (Taurate surfactant)

[0158] The composition according to the present invention comprises (b) at least one taurate surfactant.A single type of taurate surfactant may be used, but two or more different types of taurate surfactants may also be used in combination.

[0159] The term "taurate surfactant" herein refers to an anionic surfactant comprising at least one taurate salt moiety. Taurate surfactants may also be referred to as taurate-based surfactants.

[0160] (b) The taurate surfactant is preferably an acyl taurate, more preferably an N-acyl taurate, and even more preferably an N-acyl methyl taurate (ie, N-acyl-N-methyl taurate).

[0161] (b) Taurate surfactants include those of the following Formula I:

[0162]

[0163] in,

[0164] R 7 (C8-C 22 )alkyl;

[0165] R 8 is H or (C1-C4) alkyl;

[0166] R 9 and R 10 are each independently H or (C1-C4)alkyl; and

[0167] M + It is sodium, potassium or ammonium cation.

[0168] (b) Taurate surfactants may be selected from taurates, capryl taurate, lauroyl taurate, myristoyl taurate, palmitoyl taurate, stearoyl taurate, oleoyl taurate, cocoyl taurate, methyl taurate, coconut fatty acid methyl taurate, palm kernel fatty acid methyl taurate, hydrogenated palm kernel fatty acid methyl taurate, tallow fatty acid methyl taurate, hydrogenated tallow fatty acid methyl taurate, capryl methyl taurate, lauroyl methyl taurate, myristoyl methyl taurate, palmitoyl methyl taurate, stearoyl methyl taurate, oleoyl methyl taurate, cocoyl methyl taurate, methyltaurine cocoyl methyl taurate, and salts thereof.

[0169] For example, (b) taurate surfactants include sodium methyl lauroyl taurate, sodium methyl myristoyl taurate, potassium methyl myristoyl taurate, sodium methyl cocoyl taurate, sodium methyl oleoyl taurate, calcium methyl lauroyl taurate, potassium methyl lauroyl taurate, and ammonium methyl lauroyl taurate. Likewise, in some cases, the taurate surfactant is sodium methyl cocoyl taurate.

[0170] (b) Examples of taurate surfactants include, but are not limited to:

[0171] - Palm kernel oil methyl taurate sodium salt, marketed by Clariant under the name Hostapon CT Sale;

[0172] -Sodium N-cocoyl-N-methyltaurate, marketed by Clariant under the name Hostapon LT- Sold or by Nikkol under the name Nikkol Sale;

[0173] - Sodium methyl stearoyl taurate, known by the name Nikkol Sale;

[0174] - Sodium palmitoyl methyl taurate, manufactured by Nikkol under the name Nikkol Sales; and

[0175] - Sodium methyl cocoyl taurate, sold under the name PUREACT WSCONC LO by Innospec Active Chemicals.

[0176] The amount of (b) taurate surfactant in the composition according to the present invention is at least 0.6 wt % relative to the total weight of the composition. The amount of taurate surfactant in the composition can be 0.75 wt % or more, preferably 0.9 wt % or more, relative to the total weight of the composition. The amount of taurate surfactant in the composition according to the present invention can be 10 wt % or less, preferably 5 wt % or less, more preferably 3 wt % or less, relative to the total weight of the composition. Any combination of the upper and lower limit values ​​is applicable.

[0177] The amount of (b) taurate surfactant in the composition according to the invention may range from 0.6% to 10% by weight, preferably from 0.75% to 5% by weight, more preferably from 0.9% to 3% by weight relative to the total weight of the composition.

[0178] (Amino Acid Surfactant)

[0179] The composition according to the present invention comprises (c) at least one amino acid surfactant. A single type of amino acid surfactant may be used, but two or more different types of amino acid surfactants may also be used in combination.

[0180] The term "amino acid surfactant" herein refers to an anionic surfactant based on an amino acid or a derivative thereof. Typically, an amino acid surfactant is an anionic surfactant comprising at least one amino moiety and at least one carboxylic acid moiety in the form of a carboxylate. An amino acid surfactant may have two or more amino moieties and / or two or more carboxylic acid moieties in the form of a carboxylate. An amino acid surfactant may also be referred to as an amino acid-based surfactant.

[0181] Here, (c) the amino acid surfactant is different from (b) the taurate surfactant.

[0182] The (c) amino acid surfactant may preferably be selected from amino acid derivatives. The amino acid derivative may more preferably be selected from salts of amino acids and N-acylated amino acids, such as alkali metal salts and alkaline earth metal salts of amino acids and N-acylated amino acids (such as sodium salts, potassium salts, magnesium salts and calcium salts of amino acids and N-acylated amino acids). Therefore, the (c) amino acid surfactant is preferably an N-acyl amino acid surfactant.

[0183] The acyl group forming the N-acyl portion of the amino acid derivative may be C1-C 30 Acyl, preferably C6-C 28 Acyl, more preferably C 12 -C 24 Acyl.

[0184] (c) The amino acid surfactant may even more preferably be selected from glutamics, N-acylated glutamics, aspartics, N-acylated aspartics, and salts thereof.

[0185] The carboxylates of these amino acids can be formed in a conventional manner, for example, by neutralizing the corresponding amino acid with a base. In the presence of a base, the amine group located on the α-carbon or β-carbon of the neutralized amino acid is acylated with a fatty acid halide (acyl halide) to generate an amide, thereby forming the desired surfactant reaction product, i.e., an amino acid surfactant. Suitable acyl halides for acylated amino acid carboxylates include acyl chlorides, acyl bromides, acyl fluorides, and acyl iodides. Acyl halides can be prepared by reacting saturated or unsaturated, straight or branched C8 to C 22 Fatty acid is prepared by reacting with thionyl halide (thionyl bromide, thionyl chloride, thionyl fluoride and thionyl iodide). Representative acyl halides include but are not limited to acyl chlorides selected from the following: decanoyl chloride, dodecanoyl chloride (lauroyl chloride), cocoyl chloride (fatty acyl chloride derived from coconut oil), tetradecanoyl chloride (myristoyl chloride), hexadecanoyl chloride (palmitoyl chloride), octadecanoyl chloride (stearoyl chloride), 9-octadecenoyl chloride (oleoyl chloride), eicosanoyl chloride (arachidyl chloride), behenoyl chloride (behenoyl chloride) and any mixture thereof. Other acyl halides include bromide, fluoride and iodide of the above-mentioned fatty acid. The method for preparing acyl halides and the alternative method of acylated amino acids are described in U.S. Patent Application Publication No. 2008 / 0200704, disclosed on August 21, 2008, which is incorporated herein by reference.

[0186] In one embodiment, the amino acid-based anionic surfactant is represented by formula (A):

[0187]

[0188] in:

[0189] Z represents a saturated or unsaturated, linear or branched hydrocarbon group having 8 to 22 carbon atoms,

[0190] X is hydrogen or methyl,

[0191] n is 0 or 1,

[0192] Y is selected from hydrogen, -CH3, -CH(CH3)2, -CH2CH(CH3)2, -CH(CH3)CH2CH3, -CH2C6H5, -CH2C2H4OH, -CH2OH, -CH(OH)CH3, -(CH2)4NH2, -(CH2)3NHC(NH)NH2, -CH2C(O)O - M + , -(CH2)2C(O)OH, -(CH2)2C(O)O - M + ,as well as

[0193] M is a salt-forming cation (where COO is the counter anion), such as sodium, potassium, ammonium or triethanolamine.

[0194] According to a preferred embodiment of the present invention, in the amino fatty acid of formula (A):

[0195] Z represents a saturated or unsaturated straight chain C8 to C 18 Alkyl, especially coconut oil,

[0196] X is hydrogen,

[0197] n is 0,

[0198] Y is hydrogen, and

[0199] M is a salt-forming cation (where COO is the counter anion), such as sodium, potassium, ammonium or triethanolamine.

[0200] Examples of amino acid surfactants are salts of alanine, arginine, aspartic acid, glutamic acid, glycine, isoleucine, leucine, lysine, phenylalanine, serine, tyrosine, valine, sarcosine, and any mixture thereof. More specifically, there can be mentioned amino acid surfactants such as dipotassium octanoyl glutamate, dipotassium undecylenoyl glutamate, disodium octanoyl glutamate, disodium cocoyl glutamate, disodium lauroyl glutamate, disodium stearoyl glutamate, disodium undecylenoyl glutamate, potassium octanoyl glutamate, potassium cocoyl glutamate, potassium lauroyl glutamate, potassium myristoyl glutamate, potassium stearoyl glutamate, potassium undecylenoyl glutamate, octanoyl glutamate, disodium ... Sodium Glutamate, Sodium Cocoyl Glutamate, Sodium Lauroyl Glutamate, Sodium Myristoyl Glutamate, Sodium Olive Oil Glutamate, Sodium Palmitoyl Glutamate, Sodium Stearoyl Glutamate, Sodium Undecylenoyl Glutamate, Cocoyl Methyl β-Alaninate, Lauroyl β-Alaninate, Lauroyl Methyl β-Alaninate, Myristoyl β-Alaninate, Potassium Lauroyl Methyl β-Alaninate, Sodium Cocoyl Alaninate, Sodium Cocoyl Methyl β-Alaninate and Myristoyl β-Alaninate Sodium Myristoyl Methyl Beta-Alanine, Palmitoyl Glycinate, Sodium Lauroyl Glycinate, Sodium Cocoyl Glycinate, Sodium Myristoyl Glycinate, Potassium Lauroyl Glycinate, Potassium Cocoyl Glycinate, Potassium Lauroyl Sarcosinate, Potassium Cocoyl Sarcosinate, Sodium Cocoyl Sarcosinate, Sodium Lauroyl Sarcosinate, Sodium Myristoyl Sarcosinate, Sodium Oleoyl Sarcosinate, Sodium Palmitoyl Sarcosinate, Ammonium Lauroyl Sarcosinate, Sodium Lauroyl Aspartate, Myristoyl Aspartate Aspartate, sodium cocoyl aspartate, sodium capryloyl aspartate, disodium lauroyl aspartate, disodium myristoyl aspartate, disodium cocoyl aspartate, disodium capryloyl aspartate, potassium lauroyl aspartate, potassium myristoyl aspartate, potassium cocoyl aspartate, potassium capryloyl aspartate, dipotassium lauroyl aspartate, dipotassium myristoyl aspartate, dipotassium cocoyl aspartate, dipotassium capryloyl aspartate, and mixtures thereof.

[0201] Commercially available amino acid surfactants may be mentioned, for example:

[0202] - Sarcosinates, for example sodium lauroyl sarcosinate, marketed by Ciba under the name Sarkosyl NL Sold or marketed by Seppic under the name Oramix L Sodium myristoyl sarcosinate, sold by Nikkol under the name NikkolSarcosinate or sodium palmitoyl sarcosinate, sold by Nikkol under the name Nikkol Sarcosinate Sale;

[0203] - Alaninates, for example sodium N-lauroyl-N-methylaminopropionate, available from Nikkol under the name Sodium Nikkol Alaninate LN Sold or sold by Kawaken under the name Alanone or triethanolamine N-lauroyl-N-methylalaninate, sold by Kawaken under the name Alanone Sale;

[0204] - Glutamate, for example triethanolamine monococoyl glutamate, marketed by Ajinomoto under the name Acylglutamate Sold; Triethanolamine lauroyl glutamate, marketed by Ajinomoto under the name Acylglutamate Disodium glutamate, disodium stearoyl glutamate, sold by Ajinomoto under the name HS-21P, and mixtures thereof; sodium cocoyl glutamate, sold by BASF Japan under the name Amino SF-N; Disodium cocoyl glutamate, sold by BASF Japan under the name Amino SCG-L; and Disodium Cocoyl Glutamate / Sodium Cocoyl Glutamate, sold by Ajinomoto under the name CS-22 sales;

[0205] - Aspartates, for example the mixture of triethanolamine N-lauroyl aspartate and triethanolamine N-myristoyl aspartate, marketed by Mitsubishi under the name Sales; and

[0206] - Glycine derivatives (glycinates), for example sodium N-cocoyl glycinate, marketed by Ajinomoto under the name Amilite and Amilite GCK 12 sales.

[0207] The amount of (c) amino acid surfactant in the composition can be 0.5 wt % or more, preferably 1 wt % or more, preferably 2 wt % or more relative to the total weight of the composition. The amount of (c) amino acid surfactant in the composition according to the present invention can be 20 wt % or less, preferably 15 wt % or less, more preferably 10 wt % or less relative to the total weight of the composition. Any combination of the upper and lower limits is available.

[0208] The amount of (c) amino acid surfactant in the composition according to the present invention may be 0.5 to 20 wt %, preferably 1 to 15 wt %, more preferably 2 to 10 wt %, relative to the total weight of the composition.

[0209] In one embodiment of the present invention, the weight ratio of (b) taurate surfactant to (c) amino acid surfactant contained in the composition may be 3:1 to 1:10, preferably 2:1 to 1:8, more preferably 1:1 to 1:5.

[0210] In another embodiment of the present invention, the total amount of (b) taurate surfactant and (c) amino acid surfactant contained in the composition may be 1 wt % to 20 wt %, preferably 2 wt % to 15 wt %, more preferably 3 wt % to 10 wt %, relative to the total weight of the composition.

[0211] In another embodiment of the present invention, the weight ratio of (a) glycolipid to the total amount of (b) taurate surfactant and (c) amino acid surfactant contained in the composition can be 10:1 to 1:10, preferably 5:1 to 1:5, more preferably 3:1 to 1:3, especially 2:1 to 1:2.

[0212] In another embodiment of the present invention, the total weight amount of (a) glycolipid, (b) taurate surfactant and (c) amino acid surfactant contained in the composition may be 1 wt % to 25 wt %, preferably 3 wt % to 20 wt %, more preferably 5 wt % to 15 wt % relative to the total weight of the composition.

[0213] (water)

[0214] The composition according to the invention comprises water.

[0215] The amount of water in the composition according to the invention may be 50% by weight or more, preferably 60% by weight or more, more preferably 70% by weight or more, relative to the total weight of the composition.

[0216] The amount of water in the composition according to the invention may be 99% by weight or less, preferably 97% by weight or less, more preferably 95% by weight or less, relative to the total weight of the composition.

[0217] The amount of water in the composition according to the invention may range from 50% to 99% by weight, preferably from 60% to 97% by weight, more preferably from 70% to 95% by weight relative to the total weight of the composition.

[0218] (Other optional ingredients)

[0219] -Polyol

[0220] The composition according to the invention may or may not contain at least one polyol. Two or more polyols may be used in combination. Thus, a single type of polyol or a combination of different types of polyols may be used.

[0221] For the purposes of the present invention, the term "polyol" is understood to mean any organic molecule comprising at least two free hydroxyl groups.

[0222] The polyols suitable for use in the present invention may be linear, branched or cyclic, saturated or unsaturated alkyl type compounds carrying at least two -OH functional groups on the alkyl chain.

[0223] Preferably, the polyols that can be used in the composition according to the invention are linear or branched compounds, preferably linear alkyl type compounds carrying at least 2 -OH functions, preferably 2 to 5 -OH functions, more preferably 2 to 4 -OH functions, even more preferably 2 or 3 -OH functions, on the alkyl chain.

[0224] Advantageously, the polyols suitable for formulating the cosmetic compositions according to the invention are especially polyols having from 2 to 12 carbon atoms, or for example from 3 to 8 carbon atoms.

[0225] The polyols that can be used according to the invention are chosen from linear or branched, preferably linear, polyols having 3 to 8 carbon atoms; mention may be made in particular of:

[0226] - glycols, such as hexylene glycol, dipropylene glycol, pentylene glycol, propylene glycol, butylene glycol and caprylyl glycol; and

[0227] - triols, such as glycerol (propylene glycol),

[0228] and mixtures thereof.

[0229] The amount of polyol in the composition according to the invention may be 1 wt % or more, preferably 2 wt % or more, more preferably 3 wt % or more, relative to the total weight of the composition, and / or may be 30 wt % or less, preferably 25 wt % or less, more preferably 20 wt % or less.

[0230] The amount of polyol in the composition according to the invention may range from 1% to 30% by weight, preferably from 2% to 25% by weight, more preferably from 3% to 20% by weight relative to the total weight of the composition.

[0231] - Monobasic non-polymeric acid or its salt

[0232] The composition according to the present invention may or may not contain at least one monobasic non-polymeric acid or salt thereof.A single type of monobasic non-polymeric acid or salt thereof may be used, or two or more different types of monobasic non-polymeric acids or salts thereof may be used in combination.

[0233] The monobasic non-polymeric acid or its salt is different from the amino acid surfactant and the taurate surfactant.

[0234] The term "non-polymeric" means here that the acid is not obtained by polymerization of two or more monomers. Thus, a non-polymeric acid does not correspond to an acid obtained by polymerization of two or more monomers (such as polyacrylic acid).

[0235] The term "salt" refers here to a salt formed by adding a suitable base to a monobasic non-polymeric acid, which can be obtained by reacting a monobasic non-polymeric acid with a base according to methods known to those skilled in the art. As salts, metal salts, for example salts with alkali metals such as Na and K, salts with alkaline earth metals such as Mg and Ca, and ammonium salts can be mentioned.

[0236] It is preferred that the molecular weight of the monobasic non-polymeric acid or its salt is less than 1,000, preferably 500 or less, more preferably 200 or less.

[0237] The monobasic non-polymeric acid or its salt may be contained in the aqueous phase formed by (d) water.

[0238] The monobasic non-polymeric acid has a single acid group which can be selected from the group consisting of carboxylic acid, sulfate, sulfonic acid, phosphoric acid, phosphonic acid, and mixtures thereof.

[0239] The monobasic non-polymeric acid or its salt may be selected from monobasic organic or inorganic acids and their salts.

[0240] Preferably, the monobasic non-polymeric acid is a monobasic organic acid, more preferably a monobasic non-polymeric carboxylic acid.

[0241] The monovalent non-polymeric carboxylic acid may be selected from hydroxy acids, preferably α-hydroxy acids and β-hydroxy acids. As α-hydroxy acids, for example, lactic acid and glycolic acid may be mentioned. As β-hydroxy acids, for example, salicylic acid may be mentioned.

[0242] Thus, the monobasic non-polymeric acid may be a monobasic non-polymeric organic acid, preferably a monobasic non-polymeric carboxylic acid, more preferably a monobasic hydroxy acid such as lactic acid and salicylic acid.

[0243] The amount of the monobasic non-polymeric acid or its salt in the composition according to the present invention may be 0.01 wt% or more, preferably 0.05 wt% or more, more preferably 0.1 wt% or more, relative to the total weight of the composition.

[0244] The amount of the monobasic non-polymeric acid or its salt in the composition according to the present invention may be 10 wt% or less, preferably 5 wt% or less, more preferably 3 wt% or less, relative to the total weight of the composition.

[0245] The amount of the monobasic non-polymeric acid or its salt in the composition according to the present invention may be 0.01 to 10% by weight, preferably 0.05 to 5% by weight, more preferably 0.1 to 3% by weight, relative to the total weight of the composition.

[0246] - Non-polymeric acids with two or more acid dissociation constants

[0247] The composition according to the present invention may or may not contain at least one non-polymeric acid or salt thereof having two or more pKa values. A single type of non-polymeric acid or salt thereof having two or more pKa values ​​may be used, or two or more different types of non-polymeric acids or salts thereof having two or more pKa values ​​may be used in combination.

[0248] A non-polymeric acid or salt thereof having two or more pKa values ​​has two or more acid dissociation constants or its salt. The pKa values ​​(acid dissociation constants) are well known to those skilled in the art and should be determined at a constant temperature, such as 25°C.

[0249] The composition according to the invention may comprise a combination of two or more non-polymeric acids or their salts having two or more pKa values.

[0250] The term "non-polymeric" means here that the acid is not obtained by polymerization of two or more monomers. Thus, a non-polymeric acid does not correspond to an acid obtained by polymerization of two or more monomers, such as a polycarboxylic acid.

[0251] It is preferred that the molecular weight of the non-polymeric acid or salt thereof having two or more pKa values ​​is 1,000 or less, preferably 800 or less, more preferably 700 or less.

[0252] There is no restriction on the type of non-polymeric acid or its salt with two or more pKa values. Two or more different types of non-polymeric acid or its salt with two or more pKa values ​​can be used in combination. Therefore, a single type of non-polymeric acid or its salt with two or more pKa values, or a combination of non-polymeric acid or its salt with two or more pKa values ​​of different types can be used.

[0253] The term "salt" herein refers to a salt formed by adding a suitable base to a non-polymeric acid having two or more pKa values, which can be obtained by reacting a non-polymeric acid having two or more pKa values ​​with a base according to methods known to those skilled in the art. As salts, metal salts, for example salts with alkali metals such as Na and K, salts with alkaline earth metals such as Mg and Ca, and ammonium salts can be mentioned.

[0254] The non-polymeric acid or its salt having two or more pKa values ​​may be an organic acid or its salt, preferably a hydrophilic or water-soluble organic acid or its salt.

[0255] The non-polymeric acid having two or more pKa values ​​may have at least two acidic groups selected from carboxylic acid groups, sulfate groups, sulfonic acid groups, phosphoric acid groups, phosphonic acid groups, phenolic hydroxyl groups, and mixtures thereof.

[0256] The non-polymeric acid having two or more pKa values ​​may be a non-polymeric multivalent acid.

[0257] The non-polymeric acid having two or more pKa values ​​may be selected from dicarboxylic acids, disulfonic acids and diphosphoric acids and mixtures thereof.

[0258] The non-polymeric acid or its salt having two or more pKa values ​​may be selected from: oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, fumaric acid, maleic acid, malic acid, citric acid, lactic acid, phosphoric acid, aconitic acid, oxaloacetic acid, tartaric acid, and salts thereof; aspartic acid, glutamic acid, and salts thereof; terephthalylidene dicamphorsulfonic acid or salts thereof (Mexoryl SX), benzophenone-9; phytic acid, and salts thereof; and salts thereof;Red 2 (Amaranth), Red 102 (New Coccine), Yellow 5 (Tartrazine), Yellow 6 (Sunset Yellow FCF), Green 3 (Fast Green FCF), Blue 1 (Brilliant Blue FCF), Blue 2 (Indigo Carmine), Red 201 (Lithol Rubine B), Red 202 (Lithol Rubine BCA), Red 204 (LakeRed CBA), Red 206 (Lithol Red CA), Red 207 (Lithol Red BA), Red 208 (Lithol Red SR), Red 219 (Brilliant Lake R), Red 220 (Lithol Rubine BCA), Red 221 (Lithol Rubine BCA), Red 222 (Lithol Rubine BCA), Red 223 (Lithol Rubine BCA), Red 224 (Lithol Rubine CBA), Red 225 (Lithol Rubine CBA), Red 226 (Lithol Red CA), Red 227 (Lithol Red BA), Red 228 (Lithol Red SR), Red 229 (Lithol Red SR), Red 230 (Lithol Red SR), Red 231 (Lithol Red SR), Red 232 (Lithol Red SR), Red 233 (Lithol Red SR), Red 234 (Lithol Red SR), Red 235 (Lithol Red SR), Red 236 (Lithol Red SR), Red 237 (Lithol Red SR), Red 238 (Lithol Red SR), Red 239 (Lithol Red SR), Red 240 (Lithol Red SR), Red 241 (Lithol Red SR), Red 242 (Lithol Red SR), Red 243 (Lithol Red SR), Red 244 (Lithol Red SR), Red 245 (Lithol Red SR), Red 246 (Lithol ), Red 220 (Deep Maroon), Red 227 (Fast Acid Magenta), Yellow 203 (Quinoline Yellow WS), Green 201 (Alizanine Cyanine Green F), Green 204 (Pyranine Conc), Green 205 (Light Green SF Yellow), Blue 203 (Patent Blue CA), Blue 205 (Alfazurine FG), Red 401 (Violamine R), Red 405 (Permanent Red F5R), Red 502 (Ponceau 3R), Red 503 (Ponceau R), Red 504 (Ponceau SX), Green 401 (Naphthol Green B), Green 402 (Guinea Green B) and Black 401 (Naphthol Blue Black); folic acid, ascorbic acid, isoascorbic acid, and salts thereof; cystine and salts thereof; EDTA and salts thereof; glycyrrhizic acid and salts thereof; and mixtures thereof. ;

[0259] It may be preferred that the non-polymeric acid having two or more pKa values ​​or its salt is selected from lactic acid, phosphoric acid, phytic acid and salts thereof.

[0260] The amount of the non-polymeric acid having two or more pKa values ​​or its salt in the composition according to the present invention may be 0.01 wt % or more, preferably 0.05 wt % or more, more preferably 0.1 wt % or more, relative to the total weight of the composition.

[0261] The amount of the non-polymeric acid having two or more pKa values ​​or its salt in the composition according to the present invention may be 10 wt% or less, preferably 5 wt% or less, more preferably 3 wt% or less, relative to the total weight of the composition.

[0262] The amount of non-polymeric acid having two or more pKa values ​​or its salt in the composition according to the invention may be 0.01 to 10% by weight, preferably 0.05 to 5% by weight, more preferably 0.1 to 3% by weight relative to the total weight of the composition.

[0263] -Higher fatty acids

[0264] The composition according to the present invention may or may not contain at least one higher fatty acid.A single type of higher fatty acid may be used, or two or more different types of higher fatty acids may be used in combination.

[0265] The term "fatty acid" herein refers to a monofunctional carboxylic acid having an aliphatic chain.

[0266] The higher fatty acid may be straight chain or branched. The higher fatty acid is preferably selected from straight chain higher fatty acids.

[0267] The higher fatty acids can be saturated or unsaturated. In a preferred embodiment of the present invention, the fatty acids are selected from saturated fatty acids. In another preferred embodiment of the present invention, the fatty acids are selected from unsaturated fatty acids having 1 to 3 carbon-carbon double bonds, preferably 1 or 2 carbon-carbon double bonds.

[0268] Nonlimiting examples of the higher fatty acid include fatty acids having 6 to 24 carbon atoms, preferably 8 to 20 carbon atoms.

[0269] In a preferred embodiment of the present invention, the higher fatty acid is a mixture of higher fatty acids selected from straight-chain fatty acids having 6 to 24 carbon atoms, preferably 8 to 20 carbon atoms, wherein the fatty acid is a saturated or unsaturated fatty acid having 1 or 2 carbon-carbon double bonds.

[0270] Higher fatty acids can be represented by the following formula:

[0271] RCOOH

[0272] in:

[0273] R is a linear or branched (preferably linear) C6-C 24 Alkyl or alkenyl, preferably C8-C 20 Alkyl or alkenyl. R may contain 1 or 2 carbon-carbon double bonds.

[0274] As non-limiting examples of higher fatty acids, mention may be made of capric acid, caprylic acid, lauric acid, linoleic acid, myristic acid, oleic acid, palmitic acid, stearic acid, and mixtures thereof.

[0275] The higher fatty acid may be present in an amount of 0.01 wt % or more, preferably 0.05 wt % or more, more preferably 0.08 wt % or more, relative to the total weight of the composition, and / or may be present in an amount of 5 wt % or less, preferably 3 wt % or less, more preferably 1 wt % or less, relative to the total weight of the composition.

[0276] The amount of active agent for chemical peeling in the composition according to the invention may range from 0.01% to 5% by weight, preferably from 0.05% to 3% by weight, more preferably from 0.08% to 1% by weight relative to the total weight of the composition.

[0277] In another embodiment of the invention, the composition according to the invention comprises fatty acids or higher fatty acids in an amount of 1 wt% or less, preferably 0.5 wt% or less, more preferably 0.3 wt% or less relative to the total weight of the composition.

[0278] -pH adjuster

[0279] The pH of the composition according to the invention may or may not be adjusted to the desired value using at least one pH adjusting agent commonly used in cosmetics, such as an acidifying agent or an alkalizing agent.

[0280] The pH of the composition according to the invention may be 4 to 8, preferably 4.5 to 7.5, more preferably 5 to 7.

[0281] Among the acidifying agents, mention may be made, by way of example, of inorganic or organic acids, such as hydrochloric acid, orthophosphoric acid, sulfuric acid, carboxylic acids, such as acetic acid, tartaric acid, citric acid and lactic acid, and sulfonic acids.

[0282] Among the alkalizing agents, mention may be made, by way of example, of alkali metal or alkaline earth metal hydroxides, for example sodium hydroxide or potassium hydroxide; quaternary ammonium hydroxides and guanidine hydroxide; alkali metal silicates, such as sodium metasilicate; amino acids, preferably basic amino acids, such as arginine, lysine, ornithine, citrulline and histidine; carbonates and bicarbonates, in particular of primary, secondary or tertiary amines, of alkali metal or alkaline earth metals or of ammonium; and compounds of the formula:

[0283]

[0284] in

[0285] W is a C1-C6 alkylene residue, which is optionally substituted by hydroxyl or C1-C6 alkyl;

[0286] Rx, Ry, Rz and Rt may be the same or different and represent a hydrogen atom or a C1-C6 alkyl group, a C1-C6 hydroxyalkyl group or a C1-C6 aminoalkyl group. In particular, 1,3-diaminopropane, 1,3-diamino-2-propanol, spermine and spermidine may be mentioned.

[0287] The pH adjuster may be used in an amount ranging from 0.001 wt % to 10 wt %, preferably 0.01 wt % to 5 wt %, more preferably 0.1 wt % to 3 wt %, relative to the total weight of the composition.

[0288] The pH value of the composition according to the present invention is not particularly limited, but is usually 3 to 8, preferably 3.5 to 7, and more preferably 4 to 6.

[0289] -additive

[0290] The composition according to the present invention may or may not contain any optional additives commonly used in the cosmetic field, for example selected from anionic polymers, cationic polymers, nonionic polymers or amphoteric polymers such as polylysine, anionic surfactants, cationic surfactants, nonionic surfactants or amphoteric surfactants other than ingredients (a) to (c), oils, hydrophobic organic solvents, gums, resins, thickeners, dispersants, antioxidants, film formers, buffers, preservatives such as sodium benzoate, fragrances, neutralizers, antibacterial agents, chelating agents, UV shielding agents, cosmetic active agents such as vitamins, moisturizers, emollients or collagen protectants, and mixtures thereof.

[0291] Polylysine is a cationic polymer corresponding to the condensation of several amino acids of lysine. Polylysine can be a natural homopolymer of L-lysine, which can be produced by bacterial fermentation. Polylysine is commonly used as a natural preservative in food. Polylysine is a polyelectrolyte soluble in polar solvents such as water.

[0292] Polylysine can be, for example, ε-polylysine (or "ε-polylysine"), which is a condensation product of the ε-amino group of lysine and a carboxyl group; or α-polylysine (or "α-polylysine"), which is a condensation product of the α-amino group of lysine and a carboxyl group. Polylysine is commercially available in various forms, such as poly-D-lysine and poly-L-lysine. Polylysine is generally a condensate of L-lysine, i.e., poly-L-lysine.

[0293] The molecular weight (Da) of polylysine may be greater than 1,000 and less than 20,000, preferably greater than 1,500 and less than 15,000, and more preferably greater than 2,000 and less than 10,000.

[0294] The composition according to the present invention may contain the above optional ingredients in an amount of 0.01 to 30 wt %, preferably 0.05 to 20 wt %, more preferably 0.1 to 10 wt % relative to the total weight of the composition.

[0295]

preparation

[0296] The composition according to the present invention can be prepared by mixing the essential ingredients as described above and, if desired, the optional ingredients as described above.

[0297] The method and apparatus for mixing the above-mentioned essential ingredients and optional ingredients are not limited. Any conventional method and apparatus can be used to mix the above-mentioned essential ingredients and optional ingredients to prepare the composition according to the present invention.

[0298] Compositions according to the present invention can be prepared by simple or easy mixing using conventional mixing devices such as agitators and homogenizers. In addition, heating may not be necessary. Therefore, the method for preparing compositions according to the present invention can be environmentally friendly.

[0299]

Application of cosmetics

[0300] The composition according to the present invention may be intended for use as a cosmetic composition. Thus, the cosmetic composition according to the present invention may be intended for application to keratin substances. Keratin substances herein refer to materials containing keratin as a main constituent element, examples of which include skin, scalp, nails, lips, hair, etc. Therefore, the cosmetic composition according to the present invention is preferably used in a cosmetic method for keratin substances, in particular skin.

[0301] Thus, the cosmetic composition according to the present invention may be a skin cosmetic composition, preferably a skin care composition, more preferably a face care composition.

[0302] In particular, the composition according to the invention can be used for cleansing. Thus, preferably the composition according to the invention is a cleansing composition, more preferably a cleansing composition for the skin, even more preferably a cleansing composition for the face.

[0303]

Beauty methods and uses

[0304] The present invention also relates to a non-therapeutic method or procedure, preferably a cosmetic method or procedure, more preferably a cosmetic method or procedure for caring for and / or cleaning keratinous materials such as the skin, scalp and lips, in particular the facial skin, comprising:

[0305] A composition is applied to the keratinous material, the composition comprising:

[0306] (a) at least one glycolipid;

[0307] (b) at least one taurate surfactant in an amount of at least 0.6% by weight relative to the total weight of the composition;

[0308] (c) at least one amino acid surfactant; and

[0309] (d) Water.

[0310] The present invention also relates to:

[0311] a cosmetic method for keratinous materials such as the skin, comprising applying a composition according to the invention to the keratinous material; and optionally removing said composition from the keratinous material,

[0312] or

[0313] - Use of a composition according to the invention for caring for and / or cleansing keratin substances such as the skin.

[0314] A cosmetic method is understood here to mean a non-therapeutic cosmetic method, for example a cosmetic method which is used for caring for or cleansing the surface of keratinous materials such as the skin.

[0315] The removal step in the cosmetic method according to the invention can be carried out by rinsing the composition according to the invention off a keratinous substance such as the skin, for example with water.

[0316] If no removal step is performed, the cosmetic method according to the invention can be used to care for keratinous materials such as the skin, since (a) the glycolipids can provide anti-inflammatory, anti-allergic or antibacterial properties to the keratinous materials, which is particularly suitable for the care of acne-prone and sensitive skin.

[0317] If a removal step is performed, the cosmetic method according to the invention can be used to cleanse keratinous materials such as the skin, since (a) the glycolipid can act as a surfactant, as well as (b) the taurate surfactant and (c) the amino acid surfactant.

[0318] The composition is usually applied to a keratinous material such as the skin by hand or with an applicator. The present invention may comprise the optional step of rinsing the composition from the keratinous material after application of the composition.

[0319] The same explanations as above for the composition according to the invention for the composition, (a) glycolipid, (b) taurate surfactant, (c) amino acid surfactant and (d) water can be applied to the method, process and use inventions. The composition used in the method and use according to the invention may contain any optional ingredients explained above for the composition according to the invention.

[0320] Example

[0321] The present invention will be described in more detail by way of examples, however these examples should not be construed as limiting the scope of the present invention.

[0322] [Examples 1 to 5 and Comparative Examples 1 to 3]

[0323] The homogeneous solution compositions according to Examples 1 to 5 and Comparative Examples 1 to 3 were prepared by mixing the ingredients listed in Table 1 and Table 2 with a magnetic stirrer. The numerical values ​​of the ingredient contents shown in the table are all based on "weight %" of the active raw materials. As the glycolipid, a rhamnolipid-based surfactant (product name: One).

[0324]

evaluate

[0325] The stability of each composition according to Examples 1 to 5 and Comparative Examples 1 to 3 was evaluated as follows.

[0326] (+20℃ / -20℃ cycle)

[0327] Each composition was individually put into a cylindrical transparent sample bottle (SV-30) and stored in a circulating incubator controlling the temperature in a cycle of +20°C and -20°C for 5 days. The appearance of the composition was evaluated by visual observation and evaluated based on the following criteria.

[0328] Good: No precipitation was observed and its original appearance was maintained.

[0329] Poor: White precipitate particles were observed at the bottom of the sample bottle.

[0330] Very Poor: White sediment was observed at the bottom of the vial.

[0331] Temperature cycling includes the following steps:

[0332] (a) Keep the sample at +20°C for 6 hours,

[0333] (b) Cool the sample to -20°C for 6 hours,

[0334] (c) keeping the sample at -20°C for 6 hours,

[0335] (d) heating the sample to +20°C for 6 hours, and

[0336] (e) Repeat step (a) above.

[0337] (-5℃, 4℃ or room temperature)

[0338] Each composition was individually placed in a cylindrical transparent sample bottle (SV-30) immediately after preparation and stored in an incubator at -5°C, 4°C or room temperature for 7 days. The appearance of the composition was evaluated by visual observation and evaluated based on the following criteria.

[0339] Good: No precipitation was observed and its original appearance was maintained.

[0340] Poor: White precipitate particles were observed at the bottom of the sample bottle.

[0341] Very Poor: White sediment was observed at the bottom of the vial.

[0342] The results are summarized in Tables 1 and 2 below.

[0343] Table 1

[0344]

[0345] Table 2

[0346]

[0347] As can be seen from Tables 1 and 2, the compositions according to Examples 1 to 5, which comprise a specific combination of ingredients of (a) glycolipids and (b) a certain amount of taurate surfactant and (c) an amino acid surfactant, show improved stability against temperature changes and at low temperatures to room temperature.

[0348] On the other hand, the compositions according to Comparative Examples 1 to 3 not including a sufficient amount of the (b) taurate surfactant failed to show improved stability.

[0349] It can therefore be said that the composition according to the invention is very suitable as a cosmetic composition for the care and / or cleansing of keratin substances, since it can provide the bioactive benefits arising from the glycolipids with keratin substances, while it exhibits improved stability.

Claims

1. A cosmetic composition comprising: (a) at least one glycolipid; (b) at least one taurate surfactant in an amount of at least 0.6% by weight relative to the total weight of the composition; (c) at least one amino acid surfactant; and (d) Water.

2. The composition according to claim 1, wherein the (a) glycolipid is selected from rhamnolipid.

3. The composition according to claim 1 or 2, wherein the amount of the (a) glycolipid is 0.5 to 20 wt %, preferably 1 to 15 wt %, more preferably 2 to 10 wt %, relative to the total weight of the cosmetic composition.

4. A composition according to any one of the preceding claims, wherein the (b) taurate surfactant is represented by formula (I): in R 7 (C8-C 22 )alkyl; R 8 is H or (C1-C4) alkyl; R 9 and R 10 are each independently H or (C1-C4)alkyl; and M + It is sodium, potassium or ammonium cation.

5. A composition according to any one of the preceding claims, wherein the amount of (b) taurate surfactant is from 0.6% to 10% by weight, preferably from 0.75% to 5% by weight, more preferably from 0.9% to 3% by weight relative to the total weight of the composition.

6. A composition according to any one of the preceding claims, wherein the (c) amino acid surfactant is represented by formula (A): in: Z represents a saturated or unsaturated, linear or branched hydrocarbon group having 8 to 22 carbon atoms, X is hydrogen or methyl, n is 0 or 1, Y is selected from hydrogen, -CH3, -CH(CH3)2, -CH2CH(CH3)2, -CH(CH3)CH2CH3, -CH2C6H5, -CH2C2H4OH, -CH2OH, -CH(OH)CH3, -(CH2)4NH2, -(CH2)3NHC(NH)NH2, -CH2C(O)O - M + , -(CH2)2C(O)OH, -(CH2)2C(O)O - M + ,as well as M is a salt-forming cation wherein COO is a counter anion, such as sodium, potassium, ammonium or triethanolamine.

7. A composition according to any one of the preceding claims, wherein the amount of the (c) amino acid surfactant is 0.5 wt % to 20 wt %, preferably 1 wt % to 15 wt %, more preferably 2 wt % to 10 wt %, relative to the total weight of the composition.

8. The composition according to any one of the preceding claims, wherein the amount of (d) water is 50% to 99% by weight, preferably 60% to 97% by weight, more preferably 70% to 95% by weight relative to the total weight of the composition.

9. A composition according to any one of the preceding claims, wherein the weight ratio of (b) taurate surfactant to (c) amino acid surfactant contained in the composition is from 3:1 to 1:10, preferably from 2:1 to 1:8, more preferably from 1:1 to 1:

5.

10. A composition according to any one of the preceding claims, wherein the total amount of (a) glycolipid, (b) taurate surfactant and (c) amino acid surfactant contained in the composition is 1 wt % to 25 wt %, preferably 3 wt % to 20 wt %, more preferably 5 wt % to 15 wt %, relative to the total weight of the composition.

11. A composition according to any one of the preceding claims, wherein the composition further comprises at least one monobasic non-polymeric acid or a salt thereof, preferably a monobasic non-polymeric carboxylic acid, more preferably a monobasic hydroxy acid, such as lactic acid and salicylic acid.

12. A composition according to any one of the preceding claims, wherein the composition has a pH of 4 to 8, preferably 4.5 to 7.5, more preferably 5 to 7.

13. A composition according to any one of the preceding claims which is a cleansing composition, preferably a cleansing composition for the skin, more preferably a cleansing composition for the face.

14. A composition according to any one of the preceding claims, wherein the composition comprises at least one higher fatty acid in an amount of 1 wt% or less, preferably 0.5 wt% or less, more preferably 0.3 wt% or less, relative to the total amount of the composition.

15. A non-therapeutic cosmetic method for the care and / or cleansing of keratinous materials such as the skin, comprising: applying a composition according to any one of claims 1 to 14 to a keratinous substance; as well as The composition is optionally removed from the keratinous material.

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