Composition comprising N-acyl amino acid esters, diols, and polyglyceryl fatty acid esters

A composition of N-acyl amino acid esters, diols, and polyglyceryl fatty acid esters addresses the challenges of providing moisturization, low tackiness, and glossy appearance in cosmetics, ensuring stability and environmental sustainability.

JP2026110190APending Publication Date: 2026-07-02LOREAL SA

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
LOREAL SA
Filing Date
2024-12-20
Publication Date
2026-07-02

AI Technical Summary

Technical Problem

Conventional cosmetics struggle to provide a stable moisturizing effect without tackiness and enhance skin radiance while being environmentally friendly.

Method used

A composition comprising N-acyl amino acid esters, diols with at least three carbon atoms, and polyglyceryl fatty acid esters with an HLB value between 5.0 and 14.0, with the diol content being at least 10% by mass, to achieve a sufficient moisturizing effect, low tackiness, and glossy appearance.

Benefits of technology

The composition maintains stability, provides effective hydration, reduces stickiness, and offers a glossy appearance, while being environmentally friendly due to the use of renewable materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a stable composition that offers sufficient moisturizing effect, low tackiness, and a glossy appearance. [Solution] The present invention relates to a composition comprising (a) at least one N-acyl amino acid ester, (b) at least one diol having at least one carbon chain containing three or more carbon atoms, and (c) at least one polyglyceryl fatty acid ester having an HLB value greater than 5.0 and less than 14.0, wherein the amount of (b) the diol having at least one carbon chain containing three or more carbon atoms in the composition is greater than 10% by mass, preferably 15% by mass or more, and more preferably 20% by mass or more, based on the total mass of the composition. The composition according to the present invention is stable and can provide sufficient moisturizing effect, non-stickiness, and a glossy appearance.
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Description

[Technical Field]

[0001] The present invention relates to compositions, preferably cosmetic compositions, and more preferably skin cosmetic compositions. [Background technology]

[0002] The skin of the body, and more specifically the skin of the face, is constantly exposed to environmental attacks such as wind, cold air, and dust, which lead to a significant loss of moisture from the skin and must be continuously replenished. Skin dehydration often manifests as wrinkles, roughness, and dryness, and the skin tends to peel and lose elasticity. In addition, dehydration is often synonymous with skin aging, except in cases of skin disease.

[0003] Therefore, conventional cosmetics exist that can provide a moisturizing effect. Some conventional products contain polyols that can enhance the moisturizing effect. However, polyols can also impart stickiness.

[0004] On the other hand, a radiant complexion is an important requirement among consumers in many countries, including China, Japan, and the United States.

[0005] Oil-based cosmetics have been used to enhance skin radiance. However, oil-based cosmetics present technical challenges, such as often providing an unpleasant feel during use, for example, a greasy texture. Water-based cosmetics, on the other hand, typically offer a refreshing texture, the opposite of a greasy one. However, water-based cosmetics do not readily enhance the radiant appearance of the skin.

[0006] In addition, the formulations of environmentally friendly cosmetics are designed and developed with environmental issues in mind, and this is an important goal in efforts to address global problems.

[0007] Therefore, in order to address these environmental challenges, it is essential to propose more sustainable compositions, preparation methods, and ingredients.

[0008] In this context, in particular, it is important to develop new cosmetic compositions having a better carbon footprint by promoting the use of renewable raw materials and / or materials having a good naturality index and / or materials of natural origin.

Summary of the Invention

Problems to be Solved by the Invention

[0009] There is a need for a composition that is stable and can provide a sufficient moisturizing effect, low tackiness, and a glossy appearance.

[0010] Therefore, an object of the present invention is to provide a stable composition that can provide a sufficient moisturizing effect, low tackiness, and a glossy appearance.

Means for Solving the Problems

[0011] The above object of the present invention is (a) at least one N-acyl amino acid ester, and (b) at least one diol having at least one carbon chain containing 3 or more carbon atoms, and (c) at least one polyglyceryl fatty acid ester having an HLB value greater than 5.0 and less than 14.0 comprising a composition, preferably a cosmetic composition, more preferably a skin cosmetic composition, where the amount of the diol having at least one carbon chain containing 3 or more carbon atoms in the composition (b) is more than 10% by mass, preferably 15% by mass or more, more preferably 20% by mass or more based on the total mass of the composition, which can be achieved by the composition.

[0012] (a) The N-acyl amino acid ester has the following general formula (1): R 2 -N(R 5 )-CH(R 6 )-(CH2) n -COO-R 3(1) [wherein R 2 represents a linear or branched acyl group having 4 to 30 carbon atoms, preferably 5 to 26 carbon atoms, more preferably 6 to 22 carbon atoms, R 3 represents a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8 carbon atoms, more preferably 3 to 6 carbon atoms, R 5 represents a hydrogen atom or a linear or branched alkyl group having 1 to 4 carbon atoms, R 6 represents a hydrogen atom or a linear or branched alkyl group having 1 to 4 carbon atoms, which may be substituted by a hydroxy group or a phenyl group, n represents an integer from 0 to 2] can be represented by

[0013] (a) N-acyl amino acid esters include N-capryloyl sarcosinate isopropyl ester, N-caproyl sarcosinate isopropyl ester, N-lauroyl sarcosinate isopropyl ester, N-cocoyl sarcosinate isopropyl ester, N-myristoyl sarcosinate isopropyl ester, N-palmitoyl sarcosinate isopropyl ester, N-stearoyl sarcosinate isopropyl ester, N-capryloyl sarcosinate isobutyl ester, N-caproyl sarcosinate isobutyl ester, N-lauroyl sarcosinate isobutyl ester, N-cocoyl sarcosinate isobutyl ester, N-myristoyl sarcosinate isobutyl ester, N-palmitoyl sarcosinate isobutyl ester, N-stearoyl sarcosinate isobutyl ester, N-capryloyl glycine isopropyl ester, N-caproyl glycine isopropyl ester The following may be selected from the group consisting of N-lauroyl glycin isopropyl ester, N-cocoyl glycin isopropyl ester, N-myristoyl glycin isopropyl ester, N-palmitoyl glycin isopropyl ester, N-stearoyl glycin isopropyl ester, N-capryloyl alanine isopropyl ester, N-caproyl alanine isopropyl ester, N-lauroyl alanine isopropyl ester, N-cocoyl alanine isopropyl ester, N-myristoyl alanine isopropyl ester, N-palmitoyl alanine isopropyl ester, N-stearoyl alanine isopropyl ester, N-lauroyl-β-alanine isopropyl ester, N-lauroyl-N-methyl-β-alanine isopropyl ester, N-cocoyl-N-methyl-β-alanine isopropyl ester, and mixtures thereof.

[0014] The amount of (a)N-acyl amino acid ester in the composition according to the present invention may be 0.01% to 20% by mass, preferably 0.05% to 15% by mass, and more preferably 0.1% to 10% by mass, based on the total mass of the composition.

[0015] (b) The diol may have at least one carbon chain comprising 3 to 10 carbon atoms, preferably 4 to 8 carbon atoms, and more preferably 4 to 6 carbon atoms.

[0016] (b) Diols having at least one carbon chain containing three or more carbon atoms may be selected from the group consisting of propylene glycol, dipropylene glycol, polypropylene glycol, butylene glycol, dibutylene glycol, polybutylene glycol, pentylene glycol, dipentylene glycol, hexylene glycol, dihexylene glycol, and mixtures thereof.

[0017] The amount of (b) a diol having at least one carbon chain containing three or more carbon atoms in the composition according to the present invention may be 30% by mass or less, preferably 35% by mass or less, and more preferably 20% by mass or less, based on the total mass of the composition.

[0018] (c) The polyglyceryl fatty acid ester may be selected from polyglyceryl fatty acid monoesters.

[0019] (c) The polyglyceryl fatty acid ester may contain 2 to 8 glycerol units, preferably 2 to 6 glycerol units, more preferably 2 to 4 glycerol units, and even more preferably 2 glycerol units.

[0020] (c) The polyglyceryl fatty acid ester may have at least one fatty acid moiety derived from a linear or branched saturated or unsaturated fatty acid having 6 to 28 carbon atoms, preferably 8 to 24 carbon atoms, and more preferably 10 to 20 carbon atoms.

[0021] (c) The polyglyceryl fatty acid ester may be selected from the group consisting of PG2 oleate, PG2 laurate, PG2 caprate, PG2 stearate, and mixtures thereof.

[0022] The amount of (c) polyglyceryl fatty acid ester in the composition according to the present invention may be 0.1% to 15% by mass, preferably 0.5% to 10% by mass, and more preferably 1% to 5% by mass, based on the total mass of the composition.

[0023] The composition according to the present invention may further contain (d) water.

[0024] The amount of (d) water in the composition according to the present invention may be 45% to 95% by mass, more preferably 50% to 85% by mass, and even more preferably 55% to 75% by mass, based on the total mass of the composition.

[0025] The present invention also relates to a cosmetic method for keratinous substances such as skin, which includes the step of applying a composition according to the present invention. [Modes for carrying out the invention]

[0026] As a result of diligent research, the inventors have discovered that it is possible to provide a stable composition that offers sufficient moisturizing effect, low tackiness, and a glossy appearance.

[0027] Therefore, the object of the present invention is to provide a stable composition that can provide sufficient moisturizing effect, low tackiness, and a glossy appearance.

[0028] Therefore, the composition according to the present invention is (a) at least one N-acyl amino acid ester, (b) at least one diol having at least one carbon chain containing three or more carbon atoms, (c) at least one polyglyceryl fatty acid ester having an HLB value greater than 5.0 and less than 14.0 Includes, The amount of (b) a diol having at least one carbon chain containing three or more carbon atoms in the composition is more than 10% by mass, preferably 15% by mass or more, and more preferably 20% by mass or more, based on the total mass of the composition.

[0029] The compositions according to the present invention are stable. Even when the compositions according to the present invention contain water, the compositions can maintain good stability. For example, if the compositions according to the present invention are transparent, the compositions can maintain their transparency over time.

[0030] The composition according to the present invention can provide sufficient moisturizing effect, which can be recognized by a sufficient feeling of hydration. Therefore, the composition according to the present invention can have a good hydration effect.

[0031] The compositions according to the present invention have low tackiness despite containing diols. The term "tacky" here refers to the property that provides a sticky feeling to the skin. Therefore, the compositions according to the present invention can reduce the sticky feel. Thus, the compositions according to the present invention can provide an excellent texture during and / or after use.

[0032] The composition according to the present invention can provide a glossy appearance. Even if the composition according to the present invention contains water, the composition can provide a glossy appearance.

[0033] In addition, the composition according to the present invention can be uniform without any phase separation.

[0034] Furthermore, (a) N-acyl amino acid esters and / or (b) diols having at least one carbon chain containing three or more carbon atoms and / or (c) polyglyceryl fatty acid esters having an HLB value greater than 5.0 and less than 14.0 may be biodegradable and / or obtained from renewable natural materials, such as biomass (e.g., plants).

[0035] Therefore, the composition according to the present invention is environmentally friendly.

[0036] The present invention will be described in more detail below.

[0037] [Composition] The composition according to the present invention is (a) at least one N-acyl amino acid ester, (b) at least one diol having at least one carbon chain containing three or more carbon atoms, (c) at least one polyglyceryl fatty acid ester having an HLB value greater than 5.0 and less than 14.0 Includes, The amount of (b) a diol having at least one carbon chain containing three or more carbon atoms in the composition is more than 10% by mass, preferably 15% by mass or more, and more preferably 20% by mass or more, based on the total mass of the composition.

[0038] The compositions according to the present invention are described below.

[0039] (N-acyl amino acid ester) The composition according to the present invention comprises (a) at least one N-acyl amino acid ester. Two or more N-acyl amino acid esters may be used in combination. Therefore, a single type of N-acyl amino acid ester may be used, or a combination of different types of N-acyl amino acid esters may be used.

[0040] (a) N-acyl amino acid esters are given by the following general formula (1): R 2 -N(R 5 )-CH(R 6 )-(CH2) n -COO-R 3 (1) [In the formula, R 2 This represents a linear or branched acyl group having 4 to 30 carbon atoms, preferably 5 to 26, more preferably 6 to 22 carbon atoms. R 3 This represents a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8, more preferably 3 to 6 carbon atoms. R 5This represents a hydrogen atom or a linear or branched alkyl group having 1 to 4 carbon atoms. R 6 This represents a linear or branched alkyl group having 1 to 4 carbon atoms, which may be substituted with hydrogen atoms, or hydroxyl groups or phenyl groups. n represents an integer between 0 and 2. It can be represented by [this].

[0041] Examples of linear or branched acyl groups having 4 to 30 carbon atoms include those listed above.

[0042] Examples of branched alkyl groups having 3 to 10 carbon atoms include those listed above.

[0043] Examples of linear or branched alkyl groups having 1 to 4 carbon atoms include methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, sec-butyl, and tert-butyl groups.

[0044] Examples of (a)N-acyl amino acid esters represented by formula (1) include N-capryloyl sarcosinate isopropyl ester, N-caproyl sarcosinate isopropyl ester, N-lauroyl sarcosinate isopropyl ester, N-coconut oil fatty acid acyl sarcosinate isopropyl ester (N-cocoyl sarcosinate isopropyl ester), N-myristoyl sarcosinate isopropyl ester, N-palmitoyl sarcosinate isopropyl ester, N-stearoyl sarcosinate isopropyl ester, N - Capryloyl sarcosine isobutyl ester, N-caproyl sarcosine isobutyl ester, N-lauroyl sarcosine isobutyl ester, N-coconut oil fatty acid acyl sarcosine isobutyl ester (N-cocoyl sarcosine isobutyl ester), N-myristoyl sarcosine isobutyl ester, N-palmitoyl sarcosine isobutyl ester, N-stearoyl sarcosine isobutyl ester, N-capryloyl glycinate isopropyl ester, N-caproyl glycinate isopropyl ester, N Examples include lauroyl glycin isopropyl ester, N-coconut oil fatty acid acyl glycin isopropyl ester (N-cocoyl glycin isopropyl ester), N-myristoyl glycin isopropyl ester, N-palmitoyl glycin isopropyl ester, N-stearoyl glycin isopropyl ester, N-capryloyl alanine isopropyl ester, N-caproyl alanine isopropyl ester, N-lauroyl alanine isopropyl ester, N-coconut oil fatty acid acyl alanine isopropyl ester (N-cocoyl alanine isopropyl ester), N-myristoyl alanine isopropyl ester, N-palmitoyl alanine isopropyl ester, N-stearoyl alanine isopropyl ester, N-lauroyl-β-alanine isopropyl ester, N-lauroyl-N-methyl-β-alanine isopropyl ester, and N-coconut oil fatty acid acyl-N-methyl-β-alanine isopropyl ester (N-cocoyl-N-methyl-β-alanine isopropyl ester).

[0045] (a) The N-acyl amino acid ester is preferably isopropyl lauroyl sarcosinate. Commercial products such as Eldew® SL-205 manufactured by Ajinomoto Co., Inc. can be used as isopropyl lauroyl sarcosinate.

[0046] The amount of (a)N-acyl amino acid ester in the composition according to the present invention may be 0.01% by mass or more, preferably 0.05% by mass or more, and more preferably 0.1% by mass or more, based on the total mass of the composition.

[0047] The amount of (a)N-acyl amino acid ester in the composition according to the present invention may be 20% by mass or less, preferably 15% by mass or less, and more preferably 10% by mass or less, based on the total mass of the composition.

[0048] The amount of (a)N-acyl amino acid ester in the composition according to the present invention may be 0.01% to 20% by mass, preferably 0.05% to 15% by mass, and more preferably 0.1% to 10% by mass, based on the total mass of the composition.

[0049] (Diol) The compositions according to the present invention include (b) at least one diol having at least one carbon chain containing three or more carbon atoms. Two or more such (b) diols may be used in combination. Thus, a single type of such (b) diol may be used, or a combination of different types of such (b) diols may be used.

[0050] In the following, (b) diols having at least one carbon chain containing three or more carbon atoms may be simply referred to as "(b) diols".

[0051] The term "diol" here refers to a compound having two alcohol functional groups. In other words, a diol is an alcohol having two hydroxyl groups.

[0052] (b) The number of carbon atoms in the carbon chain of the diol is 3 or more, preferably 4 or more. On the other hand, the number of carbon atoms in the carbon chain of the diol may be 10 or less, preferably 8 or less, and more preferably 6 or less. Therefore, the diol may have at least one carbon chain containing 3 to 10 carbon atoms, preferably 4 to 8 carbon atoms, and more preferably 4 to 6 carbon atoms. It may be even more preferable that the number of carbon atoms in the carbon chain of the diol be 4 or 5.

[0053] (b) The carbon chain containing three or more carbon atoms in the diol may be linear or branched. The carbon chain may not be interrupted by heteroatoms, such as oxygen, sulfur, and nitrogen atoms. Therefore, the carbon chain may contain continuous carbon atoms.

[0054] (b) The number of carbon chains containing three or more carbon atoms in the diol is not limited. (b) The number of carbon chains containing three or more carbon atoms in the diol may be 1 to 3, more preferably 1 or 2.

[0055] (b) The total number of carbon atoms in the diol may be 3 or more, preferably 4 or more. On the other hand, the total number of carbon atoms in the diol may be 10 or less, preferably 8 or less, more preferably 6 or less. Therefore, the total number of carbon atoms in the diol may be 3 to 10, preferably 4 to 8, more preferably 4 to 6. It may be even more preferable for the total number of carbon atoms in the diol to be 4 or 5.

[0056] (b) Diols having at least one carbon chain containing three or more carbon atoms may have divalent linear or branched hydrocarbon groups. (b) Divalent linear or branched hydrocarbon groups that may be present in the diol may be saturated or unsaturated. (b) The diol preferably contains divalent linear or branched saturated hydrocarbon groups, more preferably linear or branched alkylene groups, such as propylene, butylene, pentylene, and hexylene groups.

[0057] (b) A diol having at least one carbon chain containing three or more carbon atoms may have a linear, branched, or cyclic molecular structure, as long as it has a carbon chain containing three or more carbon atoms.

[0058] (b) A diol having at least one carbon chain containing three or more carbon atoms, containing two hydroxyl groups, C 3~10 Diol, preferably C 4~8 Diol, more C 4~6 Diol is also acceptable.

[0059] (b) The diol having at least one carbon chain containing three or more carbon atoms is preferably selected from the group consisting of propylene glycol, dipropylene glycol, polypropylene glycol, butylene glycol, dibutylene glycol, polybutylene glycol, pentylene glycol, dipentylene glycol, hexylene glycol, dihexylene glycol, and mixtures thereof.

[0060] (b) The diol having at least one carbon chain containing three or more carbon atoms is more preferably selected from the group consisting of propylene glycol, dipropylene glycol, butylene glycol, pentylene glycol, hexylene glycol, and mixtures thereof.

[0061] (b) The diol having at least one carbon chain containing three or more carbon atoms is more preferably selected from the group consisting of butylene glycol, pentylene glycol, and mixtures thereof.

[0062] (b) Pentylene glycol is most preferred as a diol having at least one carbon chain containing three or more carbon atoms.

[0063] The amount of (b) diol in the composition according to the present invention is more than 10% by mass, preferably 15% by mass or more, and more preferably 20% by mass or more, based on the total mass of the composition.

[0064] The amount of (b)diol in the composition according to the present invention may be 50% by mass or less, preferably 45% by mass or less, and more preferably 40% by mass or less, based on the total mass of the composition.

[0065] The amount of (b) diol in the composition according to the present invention may be more than 10% by mass and 50% by mass or less, preferably 15% to 45% by mass, and more preferably 20% to 40% by mass, based on the total mass of the composition.

[0066] (Polyglyceryl fatty acid ester) The composition according to the present invention comprises (c) at least one polyglyceryl fatty acid ester having an HLB value greater than 5.0 and less than 14.5. Two or more such (c) polyglyceryl fatty acid esters may be used in combination. Therefore, a single type of such (c) polyglyceryl fatty acid ester may be used, or a combination of different types of such (c) polyglyceryl fatty acid esters may be used.

[0067] (c) Polyglyceryl fatty acid esters can function as surfactants, particularly nonionic surfactants.

[0068] (c) Polyglyceryl fatty acid esters may have an HLB value greater than 5.0 and less than 14.0, preferably 5.5 to 13.0, more preferably 6.0 to 12.0, even more preferably 6.5 to 11.0, and particularly preferably 7.0 to 10.0.

[0069] The term HLB ("hydrophilic-lipophilic balance") is well known to those skilled in the art and corresponds to the ratio of hydrophilic to lipophilic parts in a molecule.

[0070] When two or more (c) polyglyceryl fatty acid esters are used, the HLB value is determined by the weighted average of the HLB values ​​of all (c) polyglyceryl fatty acid esters.

[0071] (c) Polyglyceryl fatty acid esters may be selected from mono, di, tri and more than mono esters of saturated or unsaturated fatty acids. (c) It is preferable that the polyglyceryl fatty acid ester be selected from polyglyceryl fatty acid monoesters.

[0072] (c) The polyglyceryl fatty acid ester has at least one polyglycerol moiety derived from multiple glycerols. (c) It is preferable that the polyglyceryl fatty acid ester has one polyglycerol moiety.

[0073] (c) The polyglyceryl fatty acid ester may have a polyglycerol portion derived from 2 to 8 glycerol units, preferably 2 to 6 glycerol units, more preferably 2 to 4 glycerol units, and even more preferably 2 glycerol units. Therefore, (c) the polyglyceryl fatty acid ester may contain 2 to 8 glycerol units, preferably 2 to 6 glycerol units, more preferably 2 to 4 glycerol units, and even more preferably 2 glycerol units.

[0074] (c) The polyglyceryl fatty acid monoester has at least one fatty acid moiety derived from a fatty acid. (c) It is preferable that the polyglyceryl fatty acid ester has one fatty acid moiety.

[0075] (c) The fatty acid for the fatty acid portion of the polyglyceryl fatty acid ester may contain 6 or more carbon atoms, preferably 8 or more carbon atoms, more preferably 10 or more carbon atoms. (c) The fatty acid for the fatty acid portion of the polyglyceryl fatty acid ester, or the fatty acid portion, may contain 28 or fewer carbon atoms, preferably 24 or fewer carbon atoms, more preferably 20 or fewer carbon atoms. (c) The fatty acid for the fatty acid portion of the polyglyceryl fatty acid ester, or the fatty acid portion, may have 6 to 28 carbon atoms, preferably 8 to 24, more preferably 10 to 20 carbon atoms.

[0076] (c) The fatty acids for the fatty acid portion of the polyglyceryl fatty acid ester may be linear or branched, and / or saturated or unsaturated.

[0077] (c) The fatty acid for the fatty acid portion of the polyglyceryl fatty acid ester may be selected from caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, linoleic acid, and arachidic acid.

[0078] In one embodiment, (c) the polyglyceryl fatty acid ester has at least one, preferably one fatty acid moiety derived from a linear or branched saturated or unsaturated fatty acid having 6 to 28 carbon atoms, preferably 8 to 24 carbon atoms, and more preferably 10 to 20 carbon atoms.

[0079] (c) Polyglyceryl fatty acid esters are For example, capric acid PG2 (HLB: 9.5), which is commercially available as Sunsoft Q-10D-C by Taiyo Kagaku Co., Ltd. in Japan, For example, PG2 laurate (HLB: 8.5), which is commercially available as Sunsoft Q-12D-C by Taiyo Kagaku Co., Ltd. in Japan, For example, PG2 stearate (HLB: 7.0), which is commercially available as Sunsoft W-18D-C by Taiyo Kagaku Co., Ltd. in Japan, For example, oleic acid PG2 (HLB: 7.0), which is commercially available as Sunsoft Q-17D-C by Taiyo Kagaku Co., Ltd. in Japan, For example, PG4 capric acid (HLB: 11.9), which is marketed as Glysurf 4MC by Aoki Oil & Fat Industry Co., Ltd. in Japan, For example, PG4 laurate (HLB: 10.3), which is commercially available as Glysurf 4ML by Aoki Oil & Fat Industry Co., Ltd. in Japan, For example, PG4 stearate (HLB: 8.4), which is marketed as MS-3S by Sakamoto Pharmaceutical Co., Ltd. in Japan, For example, PG4 isostearate (HLB: 8.2), which is marketed as IS-401P by Sakamoto Pharmaceutical Co., Ltd. in Japan. For example, PG4 oleate (HLB: 8.8), which is marketed as MO-3S by Sakamoto Pharmaceutical Co., Ltd. in Japan, For example, myristic acid PG5 (HLB: 12.2), which is commercially available as Sunsoft A-141E-C by Taiyo Kagaku Co., Ltd. in Japan, For example, PG5 stearate (HLB: 12.9), which is commercially available as Sunsoft A-181E-C by Taiyo Kagaku Co., Ltd. in Japan, For example, PG5 oleate (HLB: 12.7), which is commercially available as Sunsoft A-171E-C by Taiyo Kagaku Co., Ltd. in Japan, For example, PG6 caprylate (HLB: 13.0), which is commercially available as Sunsoft Q-81F-C by Taiyo Kagaku Co., Ltd. in Japan, For example, PG6 capric acid (HLB: 13.7), which is commercially available as Glysurf 6MC by Aoki Oil & Fat Industry Co., Ltd. in Japan, For example, PG6 laurate (HLB: 13.4), which is marketed as ML-500 by Sakamoto Pharmaceutical Co., Ltd. in Japan, For example, PG6 stearate (HLB: 11.6), which is marketed as MS-5S by Sakamoto Pharmaceutical Co., Ltd. in Japan, For example, PG6 isostearate (HLB: 10.8), which is marketed as IS-601P by Sakamoto Pharmaceutical Co., Ltd. in Japan. For example, PG6 oleate (HLB: 11.6), which is marketed as MO-5S by Sakamoto Pharmaceutical Co., Ltd. in Japan, and For example, PG10 oleate (HLB: 12.9), which is marketed as MO-7S by Sakamoto Pharmaceutical Co., Ltd. in Japan, and These mixtures You may choose from the group consisting of the following:

[0080] (c) The polyglyceryl fatty acid ester is preferably selected from the group consisting of PG2 oleate (HLB: 7), PG2 laurate (HLB: 8.5), PG2 caprate (HLB: 9.5), PG2 stearate (HLB: 7.0), and mixtures thereof.

[0081] (c) The polyglyceryl fatty acid ester is more preferably selected from the group consisting of PG2 oleate (HLB: 7.0), PG2 laurate (HLB: 8.5), PG2 caprate (HLB: 9.5), and mixtures thereof.

[0082] (c) The polyglyceryl fatty acid ester is more preferably selected from the group consisting of PG2 oleate (HLB: 7.0), PG2 laurate (HLB: 8.5), and mixtures thereof.

[0083] The amount of (c) polyglyceryl fatty acid ester in the composition according to the present invention is 0.1% by mass or more, preferably 0.5% by mass or more, and more preferably 1% by mass or more, based on the total mass of the composition.

[0084] The amount of (c) polyglyceryl fatty acid ester in the composition according to the present invention may be 15% by mass or less, preferably 10% by mass or less, and more preferably 5% by mass or less, based on the total mass of the composition.

[0085] The amount of (c) polyglyceryl fatty acid ester in the composition according to the present invention may be 0.1% to 15% by mass, preferably 0.5% to 10% by mass, and more preferably 1% to 5% by mass, based on the total mass of the composition.

[0086] (water) The composition according to the present invention may contain (d) water.

[0087] In one embodiment, (d) water can constitute, for example, an aqueous phase which may be a continuous phase in the composition according to the present invention.

[0088] (d) The amount of water may be 45% by mass or more, preferably 50% by mass or more, and more preferably 55% by mass or more, based on the total mass of the composition.

[0089] (d) The amount of water may be 95% by mass or less, preferably 85% by mass or less, and more preferably 75% by mass or less, based on the total mass of the composition.

[0090] (d) The amount of water may be 45% to 95% by mass, preferably 50% to 85% by mass, and more preferably 55% to 75% by mass, based on the total mass of the composition.

[0091] (oil) The composition according to the present invention may (e) contain at least one oil. Two or more oils may be used in combination. Therefore, a single type of oil may be used, or a combination of different types of oils may be used.

[0092] Here, "oil" refers to fatty compounds or fatty substances that are in liquid or paste (non-solid) form at atmospheric pressure (760 mmHg) and room temperature (25°C). Oils commonly used in cosmetics can be used alone or in combination. These oils may be volatile or non-volatile.

[0093] (e) Oil is different from (a) N-acyl amino acid esters.

[0094] In one embodiment, (e) oil can constitute a fatty phase, which may be a discontinuous or dispersed phase in the composition according to the present invention.

[0095] (e) The oil may be a non-polar oil such as hydrocarbon oil; a vegetable oil or animal oil and a polar oil such as ester oil or ether oil; or a mixture thereof.

[0096] (e) The oil may be selected from the group consisting of plant or animal oils, synthetic oils, hydrocarbon oils, and aliphatic alcohols.

[0097] Examples of vegetable oils include, for instance, linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, sasanqua oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof.

[0098] (e) Oil is different from essential oil. The term "essential oil" here refers to a volatile, fragrant oil extracted from plants, such as from the flowers, leaves, or fruits of plants.

[0099] Examples of animal oils include, for instance, squalene and squalane.

[0100] Examples of synthetic oils include alkane oils, such as isododecane and isohexadecane, ester oils, ether oils, and artificial triglycerides.

[0101] The ester oil is preferably saturated or unsaturated, linear or branched C1-C12. 26 Aliphatic monoacid or polyacid and saturated or unsaturated linear or branched C1-C123 26 It is a liquid ester of an aliphatic monohydric alcohol or a polyhydric alcohol, and the total number of carbon atoms in the ester is 10 or more.

[0102] Preferably, in the case of a monoalcohol ester, at least one of the alcohols and acids from which the ester of the present invention is derived is branched.

[0103] Among monoesters of monoacids and monoalcohols, examples include ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristate, for example isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate, and isostearyl neopentanoate.

[0104] C4~C 22 Dicarboxylic acid or tricarboxylic acid and C1-C 22 Esters with alcohols, as well as monocarboxylic acids, dicarboxylic acids or tricarboxylic acids, and nonsugars C4-C 26 Esters with dihydroxy, trihydroxy, tetrahydroxy, or pentahydroxy alcohols may also be used.

[0105] In particular, diethyl sebacate, diisopropyl sebacate, bis(2-ethylhexyl) sebacate, diisopropyl adipate, di-n-propyl adipate, dioctyl adipate, bis(2-ethylhexyl) adipate, diisostearyl adipate, bis(2-ethylhexyl) maleate, triisopropyl citrate, triisocetyl citrate, triisostearyl citrate, glyceryl trilactic acid, glyceryl trioctanoate, trioctyldodecyl citrate, trioleyl citrate, neopentyl glycol diheptanoate, and diethylene glycol diisononanoate can be mentioned.

[0106] As ester oils, C6~C 30 Preferably C 12 ~C 22Fatty acid sugar esters and diesters can be used. The term "sugar" is meant to refer to oxygen-sparing hydrocarbon compounds that have or do not have aldehyde or ketone functional groups, contain several alcohol functional groups, and have at least four carbon atoms. These sugars may be monosaccharides, oligosaccharides, or polysaccharides.

[0107] Suitable examples of sugars that can be listed include sucrose (or sucrose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, and lactose, as well as their derivatives, particularly alkyl derivatives such as methyl derivatives, for example, methyl glucose.

[0108] Fatty acid sugar esters, in particular, consist of the aforementioned sugars and linear or branched, saturated or unsaturated C6-C6 fatty acids. 30 Preferably C 12 ~C 22 The group may consist of esters or ester mixtures with fatty acids. When these compounds are unsaturated, they may have one to three conjugated or unconjugated carbon-carbon double bonds.

[0109] Esters in this modified form may also be selected from monoesters, diesters, triesters, tetraesters, and polyesters, as well as mixtures thereof.

[0110] These esters may be, for example, oleic acid esters, lauric acid esters, palmitic acid esters, myristic acid esters, behenic acid esters, coconut fatty acid esters, stearic acid esters, linoleic acid esters, linolenic acid esters, capric acid esters and arachidonic acid esters, or mixtures thereof, for example, particularly mixed esters of oleopalmitic acid, oleostearic acid and palmitostearic acid, and pentaerythrityl tetraethylhexanoate.

[0111] More specifically, monoesters and diesters, particularly monooleates or dioleates, stearates, behenates, oleopalmitates, linoleates, linolenicates, and oleostearates of sucrose, glucose, or methyl glucose, are used.

[0112] One example that can be cited is the product sold by Amerchol under the name Glucate(registered trademark)DO, which is methyl glucose dioleate.

[0113] Examples of preferred ester oils include, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, 2-ethylhexyl caprylic / capric acid, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylyl carbonate, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, glyceryl tri(2-ethylhexanoate), pentaerythrityl tetra(2-ethylhexanoate), 2-ethylhexyl succinate, diethyl sebacate, and mixtures thereof.

[0114] Examples of artificial triglycerides include caprylcaprylyl glyceride, glyceryl trimyristicate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, tri(caprate / caprylic acid)glyceryl, and tri(caprate / caprylic acid / linolenic acid)glyceryl.

[0115] Hydrocarbon oils may be selected from the following: - Linear or branched, optionally cyclic C6-C 16 Lower alkanes. Examples include hexane, undecane, dodecane, tridecane, and isoparaffins, such as isohexadecane, isododecane, and isodecane. - Linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petroleum jelly, polydecene and hydrogenated polyisobutene, such as Parleam®, and squalane.

[0116] Preferred examples of hydrocarbon oils include, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oil (e.g., liquid paraffin), paraffin, petrolatum or petrolatum, and naphthalene; hydrogenated polyisobutene, isoeicosane, and decene / butene copolymers; and mixtures thereof.

[0117] In the context of aliphatic alcohols, the term "aliphatic" means containing a relatively large number of carbon atoms. Therefore, alcohols having 6 or more, preferably 8 or more, and more preferably 10 or more carbon atoms are included within the range of aliphatic alcohols. Aliphatic alcohols may be saturated or unsaturated. Aliphatic alcohols may be linear or branched.

[0118] Aliphatic alcohols may have the structure R-OH [wherein R is selected from saturated and unsaturated linear and branched groups containing 6 to 30 carbon atoms, preferably 8 to 28 carbon atoms, more preferably 10 to 26 carbon atoms]. In at least one embodiment, R is C 12 ~C 24 Alkyl alkyl groups, and C 12 ~C 24 The group may be selected from alkenyl groups. R may be substituted with or unsubstituted with at least one hydroxyl group.

[0119] Examples of aliphatic alcohols include lauryl alcohol, hexyldecanol, oleyl alcohol, isostearyl alcohol, octyldodecanol, decyltetradecanol, and mixtures thereof.

[0120] The aliphatic alcohol may preferably be selected from the group consisting of isostearyl alcohol, oleyl alcohol, and mixtures thereof.

[0121] (e) The oil may be selected from oils having a molecular weight of less than 600 g / mol.

[0122] Preferably, (e) the oil has a low molecular weight, for example, less than 600 g / mol, and contains short-chain hydrocarbons (C1-C1). 12 Ester oils having (e.g., isopropyl myristate, isopropyl palmitate, isononyl isononanoate, and ethylhexyl palmitate), hydrocarbon oils (e.g., isododecane, isohexadecane, and squalane), branched and / or unsaturated aliphatic alcohols (C 12 ~C 30 A type of oil, such as octyldodecanol and oleyl alcohol, and an ether oil, such as dicaprylyl ether, are selected.

[0123] (e) The oil is preferably selected from polar oils, more preferably from ester oils.

[0124] The amount of (e) oil in the composition according to the present invention may be 1% by mass or more, preferably 2% by mass or more, and more preferably 3% by mass or more, based on the total mass of the composition.

[0125] The amount of (e) oil in the composition according to the present invention may be 30% by mass or less, preferably 20% by mass or less, and more preferably 10% by mass or less, based on the total mass of the composition.

[0126] The amount of (e) oil in the composition according to the present invention may be 1% to 30% by mass, preferably 2% to 20% by mass, and more preferably 3% to 10% by mass, based on the total mass of the composition.

[0127] In preferred embodiments of the present invention, the amount of (e) oil is limited. For example, the amount of (e) oil in the composition according to the present invention may be 1% by mass or less, preferably 0.5% by mass or less, and more preferably 0.1% by mass or less, based on the total mass of the composition. In this embodiment, the composition according to the present invention may not contain (e) oil.

[0128] (pH) The pH of the composition according to the present invention may be 3 to 8, preferably 3.5 to 7.5, and more preferably 4 to 7.

[0129] The pH of the composition according to the present invention can be adjusted by adding at least one alkaline agent and / or at least one acid. The pH of the composition according to the present invention can also be adjusted by adding at least one buffering agent.

[0130] (Optional components) In addition to the components described above, the compositions according to the present invention may also contain, to the extent that they do not impair the effects of the present invention, one or more optional components typically used in cosmetics, specifically, one or more optional components selected from cationic, anionic, and amphoteric surfactants; (c) nonionic surfactants other than polyglyceryl fatty acid esters; hydrophilic or lipophilic thickeners, for example, derived from synthetic polymers; volatile or nonvolatile organic solvents; cationic, anionic, amphoteric, and nonionic polymers; (e) natural extracts derived from animals or plants other than oils; and waxes, etc.

[0131] The composition according to the present invention may contain the above-mentioned optional components in an amount of 0.01% to 30% by mass, preferably 0.05% to 20% by mass, and more preferably 0.1% to 10% by mass, based on the total mass of the composition.

[0132] (Embodiment) According to a preferred embodiment, the composition used in the method according to the present invention is, with respect to the total mass of the composition, (a) at least one N-acyl amino acid ester in an amount of 0.01% to 20% by mass, (b) at least one diol having at least one carbon chain containing three or more carbon atoms, in an amount greater than 10% by mass and less than or equal to 50% by mass, (c) at least one polyglyceryl fatty acid ester having an HLB value greater than 5.0 and less than 14.0, in an amount of 0.1% to 15% by mass. Includes.

[0133] According to another preferred embodiment, the composition according to the present invention, with respect to the total mass of the composition, For concentrations from 0.05% by mass to 15% by mass, the following general formula (1): R 2 -N(R 5 )-CH(R 6 )-(CH2) n -COO-R 3 (1) [In the formula, R 2 This represents a linear or branched acyl group having 4 to 30 carbon atoms, preferably 5 to 26, more preferably 6 to 22 carbon atoms. R 3 This represents a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8, more preferably 3 to 6 carbon atoms. R 5 This represents a hydrogen atom or a linear or branched alkyl group having 1 to 4 carbon atoms. R 6 This represents a linear or branched alkyl group having 1 to 4 carbon atoms, which may be substituted with hydrogen atoms, or hydroxyl groups or phenyl groups. n represents an integer between 0 and 2. (a') at least one N-acyl amino acid ester, represented by (b') at least one diol having at least one carbon chain containing 3 to 10 carbon atoms, in an amount of more than 15% by mass to 45% by mass, and (c') At least one polyglyceryl fatty acid monoester having an HLB value greater than 5.5 and less than 13.0, in an amount of 0.5% to 10% by mass. Includes.

[0134] According to another preferred embodiment, the composition according to the present invention, with respect to the total mass of the composition, 0.1% to 10% by mass of (a) lauroyl sarcosin isopropyl, 20% to 40% by mass of (b) butylene glycol and / or pentylene glycol, and 1% to 5% by mass of polyglyceryl fatty acid esters having an HLB value greater than 6.0 and less than 12.0, selected from the group consisting of propylene glycol, dipropylene glycol, polypropylene glycol, butylene glycol, dibutylene glycol, polybutylene glycol, pentylene glycol, dipentylene glycol, hexylene glycol, dihexylene glycol, and mixtures thereof, (c) at least one such ester. Includes.

[0135] (preparation) The compositions according to the present invention can be prepared by mixing the essential components described above and, if necessary, the optional components described above.

[0136] The methods and means for mixing the above-mentioned essential components and optional components are not limited. Any conventional methods and means may be used to mix the above-mentioned essential components and optional components to prepare the compositions according to the present invention.

[0137] The compositions according to the present invention can be prepared by simple or easy mixing using conventional mixing means such as a stirrer and a homogenizer. Furthermore, heating may not be necessary. Therefore, the method for preparing the compositions according to the present invention can be environmentally friendly.

[0138] (form) The composition according to the present invention may exist in any form.

[0139] If the composition according to the present invention contains (d) water, the composition according to the present invention may be in the form of an aqueous solution, gel, suspension, or dispersion.

[0140] (a) Since N-acyl amino acid esters function as oils, if the composition according to the present invention contains (d) water, the composition according to the present invention may be in the form of a dispersion or emulsion, for example, an O / W type dispersion or emulsion. For example, (d) water may form an aqueous phase, and (a) N-acyl amino acid esters may form a fatty phase, and the fatty phase may be dispersed in the aqueous phase.

[0141] If the composition according to the present invention contains (d) water and (e) oil, (d) water can form an aqueous phase, and (e) oil can form a fatty phase, and the fatty phase can be dispersed in the aqueous phase. Thus, the aqueous phase can function as a continuous phase, and the fatty phase can function as a dispersed phase. In other words, the composition according to the present invention can be an O / W type composition, such as an O / W dispersion and an O / W emulsion. If the composition according to the present invention is an O / W type composition, it can provide a cooling sensation due to the (d) water that forms its outer phase.

[0142] The composition according to the present invention can be thermodynamically stable and may be considered as a single-phase composition.

[0143] The composition according to the present invention can have a transparent or slightly translucent appearance, preferably a transparent appearance.

[0144] Transparency can be evaluated by measuring turbidity (for example, turbidity can be measured using a 2100Q (commercially available from HACH) equipped with a round cell (25 mm in diameter x 60 mm in height) and a tungsten filament bulb capable of emitting visible light (between 400 nm and 800 nm, preferably 400 to 500 nm)). Measurement can be performed on an undiluted composition. A blank can be determined using distilled water.

[0145] The compositions according to the present invention preferably have a turbidity of less than 50 NTU, more preferably less than 40 NTU, more preferably less than 30 NTU, and even more preferably less than 20 NTU.

[0146] (For cosmetic use) The composition according to the present invention may be intended for use as a cosmetic composition. Therefore, the cosmetic composition according to the present invention may be intended for application to keratinous substances. Here, keratinous substances refer to substances that contain keratin as their main component, and examples include skin, scalp, nails, lips, hair, etc. Therefore, the cosmetic composition according to the present invention is preferably used for cosmetic methods for keratinous substances, particularly skin.

[0147] Therefore, the cosmetic composition according to the present invention may be a skin cosmetic composition, preferably a skin care composition or a skin makeup composition, more preferably a skin care composition.

[0148] [Beauty methods and usage] The following describes the beauty method and use according to the present invention.

[0149] The present invention also relates to a cosmetic method for keratinous substances such as skin, comprising the step of applying a composition according to the present invention to the keratinous substance.

[0150] In this context, "beauty treatments" refers to non-therapeutic beauty methods aimed at caring for keratin in the skin and other tissues.

[0151] The present invention also relates to a composition, (a) at least one N-acyl amino acid ester, (b) at least one diol having at least one carbon chain containing three or more carbon atoms, and (c) At least one polyglyceryl fatty acid ester having an HLB value greater than 5.0 and less than 14.0 The use of a combination of, (b) The amount of diols having at least one carbon chain containing three or more carbon atoms in the composition is greater than 10% by mass, preferably 15% by mass or more, and more preferably 20% by mass or more, based on the total mass of the composition. It may also relate to use to stabilize the composition and enable the composition to provide sufficient moisturizing effect, low tackiness, and gloss.

[0152] The above composition may contain (d) water and (e) at least one type of oil.

[0153] The above descriptions relating to (a) N-acyl amino acid esters, (b) diols having at least one carbon chain containing three or more carbon atoms, and (c) polyglyceryl fatty acid esters having an HLB value greater than 5.0 and less than 14.0, as well as optional components, such as (d) water and (e) oil, may also be applied to the above descriptions relating to use. [Examples]

[0154] The present invention will be described in more detail by reference to examples. However, these should not be construed as limiting the scope of the present invention.

[0155] (Examples 1-6 and Comparative Examples 1-6) [Preparation] Each of the compositions from Examples 1-6 and Comparative Examples 1-6 was prepared by mixing the components shown in Table 1 at room temperature (25°C). All numerical values ​​for the amounts of components in Table 1 are based on the "mass%" of the active material.

[0156] [Table 1]

[0157] [evaluation] (exterior) The appearance of each composition prepared in Examples 1-6 and Comparative Examples 1-6 was evaluated by visual inspection of the composition one day after preparation, based on the following criteria. Good: Uniform Defective: Not uniform (phase separation observed)

[0158] The results are shown in the row labeled "Appearance" in Table 1.

[0159] (Turbidity) The turbidity of each composition prepared in Examples 1-6 and Comparative Examples 1-6 was evaluated at room temperature (25°C) using a 2100Q (Hach Company) after one day of preparation, according to the following criteria. Good: Less than 50 Defective: 50 or more

[0160] The results are shown in the row labeled "Turbidity" in Table 1.

[0161] (stability) Each of the compositions from Examples 1-6 and Comparative Examples 1-6 was filled into a glass bottle and kept at room temperature (25°C) for one day. Then, each sample was examined for transparency and evaluated according to the following criteria. Good condition: transparent Defective: Not transparent

[0162] The results are shown in the row labeled "Stability" in Table 1.

[0163] Next, the moisturizing properties, tackiness, and gloss of the compositions from Examples 1-6 and Comparative Example 3 were evaluated as follows.

[0164] The compositions from Comparative Examples 1, 2, and 4-6 were not stable and therefore could not be used for the texture evaluation described above.

[0165] (Moisturizing feeling) Sensory testers evaluated the "moisturizing sensation" after applying the compositions from Examples 1-6 and Comparative Example 3. Each sensory tester took a sample of each composition in their hand, then applied it to their face and evaluated the moisturizing sensation during application, scoring it on a scale from 1 (no moisturizing sensation) to 5 (strong moisturizing sensation).

[0166] A score of 3 or higher corresponds to a sufficient feeling of hydration or moisturizing effect.

[0167] The results are shown in the row labeled "Moisture Sensation" in Table 1.

[0168] (sticky) The "tackiness" of the compositions from Examples 1-6 and Comparative Example 3 after application was evaluated by sensory testers. Each sensory tester took a sample of each composition in their hand, then applied it to their face and evaluated the tackiness during application, scoring it on a scale from 1 (no tackiness) to 5 (very tacky).

[0169] The results are shown in the row labeled "Adhesion" in Table 1.

[0170] (gloss) Sensory testers evaluated the gloss of the compositions from Examples 1-6 and Comparative Example 3 after application. Each sensory tester took a sample of each composition in their hand, then applied it to their face and evaluated the gloss after application, scoring it on a scale from 1 (no gloss) to 5 (very glossy).

[0171] The results are shown in the row labeled "Gloss" in Table 1.

[0172] (summary) The compositions from Examples 1-6 were stable and provided sufficient moisturizing properties, low tackiness, and gloss. The compositions from Examples 1-6 were in the form of fine O / W emulsions.

[0173] The composition according to Comparative Example 1 was unstable because it contained an aliphatic alcohol (octyldodecanol) instead of an N-acyl amino acid ester (lauroyl sarcosin isopropyl).

[0174] The composition according to Comparative Example 2 was unstable because it contained a triglyceride (caprylic / capric triglyceride) instead of an N-acyl amino acid ester (lauroyl sarcosinate isopropyl).

[0175] Although the composition according to Comparative Example 3 was stable, it did not contain N-acyl amino acid ester (lauroyl sarcosin isopropyl), and therefore could not provide sufficient moisturizing effect, low tackiness, and gloss.

[0176] The composition according to Comparative Example 4 was unstable because it contained only a limited amount of diol (pentylene glycol) having at least one carbon chain containing three or more carbon atoms.

[0177] The composition according to Comparative Example 5 was unstable because it contained a polyglyceryl fatty acid ester with an HLB value of 5 (polyglyceryl-2 isostearate) instead of a polyglyceryl fatty acid ester with an HLB value greater than 5 and less than 14 (polyglyceryl-2 oleate or polyglyceryl-2 laurate).

[0178] The composition according to Comparative Example 6 was unstable because it contained a polyglyceryl fatty acid ester with an HLB value of 14.6 (polyglyceryl-6 caprylate) instead of a polyglyceryl fatty acid ester with an HLB value greater than 5 and less than 14 (polyglyceryl-2 oleate or polyglyceryl-2 laurate).

Claims

1. (a) at least one N-acyl amino acid ester, (b) at least one diol having at least one carbon chain containing three or more carbon atoms, (c) at least one polyglyceryl fatty acid ester having an HLB value greater than 5.0 and less than 14.0 A composition comprising, preferably a cosmetic composition, more preferably a skin cosmetic composition, A composition in which (b) the amount of a diol having at least one carbon chain containing three or more carbon atoms is greater than 10% by mass, preferably 15% by mass or more, and more preferably 20% by mass or more, based on the total mass of the composition.

2. (a) N-acyl amino acid esters have the following general formula (1): R 2 -N(R 5 )-CH(R 6 )-(CH 2 ) n -COO-R 3 (1) [In the formula, R 2 This represents a linear or branched acyl group having 4 to 30 carbon atoms, preferably 5 to 26, more preferably 6 to 22 carbon atoms. R 3 This represents a branched alkyl group having 3 to 10 carbon atoms, preferably 3 to 8, more preferably 3 to 6 carbon atoms. R 5 represents a hydrogen atom or a linear or branched alkyl group having 1 to 4 carbon atoms, R 6 This represents a linear or branched alkyl group having 1 to 4 carbon atoms, which may be substituted with hydrogen atoms, or hydroxyl groups or phenyl groups. n represents an integer between 0 and 2. The composition according to claim 1, as represented by [the specified figure].

3. (a) N-acyl amino acid esters include N-capryloyl sarcosinate isopropyl ester, N-caproyl sarcosinate isopropyl ester, N-lauroyl sarcosinate isopropyl ester, N-cocoyl sarcosinate isopropyl ester, N-myristoyl sarcosinate isopropyl ester, N-palmitoyl sarcosinate isopropyl ester, N-stearoyl sarcosinate isopropyl ester, N-capryloyl sarcosinate isobutyl ester, N-caproyl sarcosinate isobutyl ester, N-lauroyl sarcosinate isobutyl ester, N-cocoyl sarcosinate isobutyl ester, N-myristoyl sarcosinate isobutyl ester, N-palmitoyl sarcosinate isobutyl ester, N-stearoyl sarcosinate isobutyl ester, N-capryloyl glycine isopropyl ester, N-caproyl glycine isopropyl ester, N-lau The composition according to claim 1 or 2, selected from the group consisting of isopropyl glycinate, N-cocoyl glycinate, N-myristoyl glycinate, N-palmitoyl glycinate, N-stearoyl glycinate, N-capryloyl alanine isopropyl, N-caproyl alanine isopropyl, N-lauroyl alanine isopropyl, N-cocoyl alanine isopropyl, N-myristoyl alanine isopropyl, N-palmitoyl alanine isopropyl, N-stearoyl alanine isopropyl, N-lauroyl-β-alanine isopropyl, N-lauroyl-N-methyl-β-alanine isopropyl, N-cocoyl-N-methyl-β-alanine isopropyl, and mixtures thereof.

4. The composition according to any one of claims 1 to 3, wherein the amount of (a)N-acyl amino acid ester in the composition is 0.01% to 20% by mass, preferably 0.05% to 15% by mass, and more preferably 0.1% to 10% by mass, based on the total mass of the composition.

5. (b) The composition according to any one of claims 1 to 4, wherein the diol has at least one carbon chain comprising 3 to 10 carbon atoms, preferably 4 to 8 carbon atoms, more preferably 4 to 6 carbon atoms.

6. (b) The composition according to any one of claims 1 to 5, wherein the diol having at least one carbon chain containing three or more carbon atoms is selected from the group consisting of propylene glycol, dipropylene glycol, polypropylene glycol, butylene glycol, dibutylene glycol, polybutylene glycol, pentylene glycol, dipentylene glycol, hexylene glycol, dihexylene glycol, and mixtures thereof.

7. The composition according to any one of claims 1 to 6, wherein the amount of (b) a diol having at least one carbon chain containing three or more carbon atoms in the composition is 30% by mass or less, preferably 35% by mass or less, and more preferably 20% by mass or less, based on the total mass of the composition.

8. (c) The composition according to any one of claims 1 to 7, wherein the polyglyceryl fatty acid ester is selected from polyglyceryl fatty acid monoesters.

9. (c) The composition according to any one of claims 1 to 8, wherein the polyglyceryl fatty acid ester comprises 2 to 8 glycerol units, preferably 2 to 6 glycerol units, more preferably 2 to 4 glycerol units, and even more preferably 2 glycerol units.

10. (c) The composition according to any one of claims 1 to 9, wherein the polyglyceryl fatty acid ester has at least one fatty acid moiety derived from a linear or branched saturated or unsaturated fatty acid having 6 to 28 carbon atoms, preferably 8 to 24 carbon atoms, and more preferably 10 to 20 carbon atoms.

11. (c) The composition according to any one of claims 1 to 10, wherein the polyglyceryl fatty acid ester is selected from the group consisting of PG2 oleate, PG2 laurate, PG2 caprate, PG2 stearate, and mixtures thereof.

12. The composition according to any one of claims 1 to 11, wherein the amount of (c) polyglyceryl fatty acid ester in the composition is 0.1% to 15% by mass, preferably 0.5% to 10% by mass, and more preferably 1% to 5% by mass, based on the total mass of the composition.

13. (d) The composition according to any one of claims 1 to 12, further comprising water.

14. The composition according to claim 13, wherein the amount of (d) water in the composition is 45% to 95% by mass, more preferably 50% to 85% by mass, and even more preferably 55% to 75% by mass, based on the total mass of the composition.

15. A cosmetic method for keratinous substances such as skin, comprising the step of applying a composition according to any one of claims 1 to 14 to the keratinous substance.