Cosmetic material

Abstract

[Problem] To provide a cosmetic which improves various properties at the time of use. [Means for solving the problem] A cosmetic comprising: (a) an acrylamide thickening agent, (b) mucuna seed gum, (c) water, the blending amount of the acrylamide thickening agent being 0.01 to 1 mass% relative to the total amount of the cosmetic. The cosmetic is suitable for use as a beauty serum.

Description

TECHNICAL FIELD

[0001] The present application relates to a cosmetic material suitable for a cosmetic liquid or the like. BACKGROUND

[0002] In the past, various cosmetic materials that are applied to the skin to improve the texture of the skin have been studied. Such cosmetic materials are required to have a dense feel and a moist feel when used, and are also required to have adhesiveness and the like when applied. In order to satisfy such various properties, various components such as high molecular materials, surfactants, and the like are being studied, but further improvement in properties is required.

[0003] PRIOR ART DOCUMENTS

[0004] PATENT DOCUMENTS

[0005] Patent Document 1: Japanese Patent Application Publication No. 2014-037404 SUMMARY

[0006] Problem to be solved by the invention

[0007] Generally, when the target properties of a cosmetic material are improved according to the purpose, it is difficult to achieve a balance with other properties, and it is difficult to satisfy all properties at the same time. In the present application, a cosmetic material in which such a balance is achieved and in which various properties such as a non-stickiness, a moist feel, a smooth feel, and an adhesiveness are improved at the same time is expected.

[0008] Solution to the problem

[0009] According to the present application, the following invention is provided.

[0010] [1] A cosmetic material comprising:

[0011] (a) an acrylamide-based thickening agent,

[0012] (b) tamarind seed gum,

[0013] (c) water,

[0014] The content of the acrylamide-based thickening agent described above is 0.01 to 1% by mass with respect to the total amount of the cosmetic material described above.

[0015] [2] The cosmetic material according to [1], wherein the mass ratio of the total amount of the acrylamide-based thickening agent (a) to the total amount of the tamarind seed gum (b) is 0.2 to 3.

[0016] [3] The cosmetic material according to [1] or [2], wherein the acrylamide-based thickening agent (a) is one or two or more selected from the group consisting of:

[0017] dimethylacrylamide / acryloyldimethyltaurate crosspolymer,

[0018] acrylamide / 2-acrylamido-2-methylpropane sulfonic acid copolymer,

[0019] a mixture of polyacrylamide and sodium polyacrylate,

[0020] sodium acrylate / 2-acrylamido-2-methylpropane sulfonic acid copolymer,

[0021] polyacrylamide / ammonium acrylate copolymer, and

[0022] acrylamide / sodium acrylate copolymer.

[0023] [4] The cosmetic according to any one of [1] to [3], further comprising (d) a carboxyvinyl polymer.

[0024] [5] The cosmetic according to [4], wherein the blending amount of the (d) carboxyvinyl polymer is 0.01 to 0.5 mass% with respect to the total amount of the cosmetic.

[0025] [6] The cosmetic according to any one of [1] to [5], further comprising (e) an alkyl-modified carboxyvinyl polymer.

[0026] [7] The cosmetic according to [6], wherein the blending amount of the (e) alkyl-modified carboxyvinyl polymer is 0.0005 to 0.5 mass% with respect to the total amount of the cosmetic.

[0027] [8] The cosmetic according to any one of [1] to [7], further comprising (f) a medicament component.

[0028] [9] The cosmetic according to any one of [1] to [8], further comprising (g) an alkylene oxide derivative.

[0029]

[10] The cosmetic according to any one of [1] to [9], which is a beauty liquid.

[0030] Effects of the invention

[0031] According to the present application, it is possible to provide a cosmetic which has improved various properties at the time of use, specifically, non-stickiness, moistness, smoothness, and adhesion, at the same time. DETAILED DESCRIPTION

[0032] Hereinafter, the embodiments of the present application will be described in detail.

[0033] The cosmetic of the present application comprises (a) an acrylamide-based thickening agent, (b) carob seed gum, and (c) water as essential components.

[0034] (a) Acrylamide thickener

[0035] The cosmetics of the present invention contain an acrylamide-based thickener. This acrylamide-based thickener is a water-soluble polymer in which acrylamide is a comonomer. For example, dialkylacrylamide, represented by the following general formula, is an acrylamide that constitutes such a polymer.

[0036]

[0037] (in the formula,

[0038] R 1 Indicates hydrogen or methyl.

[0039] R 2 and R 3 Each can be represented independently as methyl, ethyl, propyl, or isopropyl.

[0040] Acrylamide-based thickeners are preferably copolymers comprising a nonionic comonomer and an ionic comonomer. Furthermore, the nonionic comonomer is preferably a dialkylacrylamide represented by the above general formula (1). Particularly preferred dialkylacrylamides are dimethylacrylamide and diethylacrylamide. Additionally, the ionic comonomer used in combination with it can, for example, be R from general formula (1). 2 Or R 3 Ionic comonomers with sulfonyl or ammonium groups bonded to their alkyl groups. Particularly preferred ionic comonomers are sodium acryloyldimethyl taurate, 2-acrylamido-2-methylpropanesulfonic acid, and their salts.

[0041] The monomer composition ratio (feed ratio) in the polymerization system of nonionic and ionic comonomers can be suitably and arbitrarily determined according to the structure of the target acrylamide thickener. Regarding the feed ratio (molar ratio) of the polymerization system of nonionic and ionic comonomers, a nonionic monomer: ionic monomer ratio of 0.5:9.5 to 9.5:0.5, preferably 1:9 to 9:1, and more preferably 7:3 to 9:1 is typically used for copolymerization.

[0042] Such acrylamide-based thickeners can be selected according to the purpose, preferably from one or more of the following substances:

[0043] Dimethacrylamide / sodium acryloyldimethyl taurate cross-linked polymer

[0044] Acrylamide / 2-acrylamide-2-methylpropanesulfonic acid copolymer,

[0045] A mixture of polyacrylamide and sodium polyacrylate

[0046] Sodium acrylate / 2-acrylamide-2-methylpropane sulfonic acid copolymer,

[0047] Polyacrylamide / ammonium acrylate copolymer, and

[0048] Acrylamide / sodium acrylate copolymer.

[0049] Among these, more preferable are sodium acryloyldimethyl taurate crosslinked polymer or sodium acrylamide / 2-acrylamide-2-methylpropane sulfonic acid copolymer, and particularly preferable is sodium acryloyldimethyl taurate crosslinked polymer.

[0050] [(b) Tamarind seed gum]

[0051] The cosmetic of the present application contains tamarind seed gum. Tamarind seed gum is a natural high-molecular compound having high viscosity and high transparency, and is typically a polysaccharide having a structure called xyloglucan, whose main chain is composed of glucose and whose side chain is composed of xylose and galactose. Such tamarind seed gum is generally manufactured by purifying a component extracted from tamarind seeds using warm water or an alkaline aqueous solution.

[0052] Tamarind seed gum is available in various commercial products, and any of them can be used as desired. Specifically, Glyloid 6C (manufactured by DSP GOKYO FOOD & CHEMICAL CO., LTD.), etc. can be mentioned.

[0053] [(c) Water]

[0054] The cosmetic of the present application contains water in addition to the above-mentioned components. As the water, water used in cosmetics, quasi drugs, etc. can be used, and for example, purified water, ion-exchanged water, tap water, etc. can be used.

[0055] [Blending amount and blending ratio of each component]

[0056] The cosmetic of the present application contains the above-mentioned essential components (a) to (c). If desired, other components described later can be further contained, and in the cosmetic of the present application, the blending amount of the acrylamide-based thickening agent is 0.01 to 1% by mass, preferably 0.05 to 0.5% by mass, and more preferably 0.1 to 0.3% by mass, relative to the total amount of the cosmetic.

[0057] Further, when the blending ratio of tamarind seed gum and the acrylamide-based thickening agent is within a specific range, the cosmetic of the present application can provide particularly excellent use feeling. Specifically, the mass ratio (a) / (b) of the total amount of the acrylamide-based thickening agent (a) to the total amount of tamarind seed gum (b) is preferably 0.2 to 3, and more preferably 0.4 to 2.

[0058] In addition, the cosmetic of the present application can be combined with other components as needed, and it is generally preferable that the proportion of water be high. Specifically, the proportion of water is preferably 60% by mass or more, and more preferably 70 to 90% by mass, relative to the total amount of the cosmetic.

[0059] [Other additives]

[0060] The cosmetic of the present application can contain various additives as needed in addition to the components (a) to (c) described above. The components that can be combined are described below.

[0061] The cosmetic of the present application can further contain (d) a carboxyvinyl polymer. Such a carboxyvinyl polymer is used as a general-purpose thickening agent for cosmetics, and is a polymer that contains acrylic acid in the monomer unit. Note that, here, the carboxyvinyl polymer is a carboxyvinyl polymer whose carboxyl group has not been modified, i.e., a carboxyvinyl polymer that is not included in the (a) acrylamide-based thickening agent or the (e) alkyl-modified carboxyvinyl polymer described later. Such a carboxyvinyl polymer is generally commercially available, and is sold as HIVIS WAKO (trade name, manufactured by Wako Pure Chemical Industries, Ltd.), SYNTHALEN (trade name, manufactured by 3V SIGMA Co., Ltd.), Carbopol (trade name, manufactured by Goodrich), and the like. These thickening agents are crosslinked polymers having a structure that is crosslinked chemically. The aqueous dispersion of such a crosslinked polymer has a very high thickening effect.

[0062] Here, the cosmetic of the present application can sufficiently obtain a thickening effect by the (a) acrylamide-based thickening agent and the (b) carob seed gum. Therefore, in the case where the (d) carboxyvinyl polymer is combined, the proportion thereof is preferably 0.01 to 0.5% by mass, and more preferably 0.03 to 0.3% by mass, relative to the total amount of the cosmetic.

[0063] The cosmetic of the present application can further contain (e) an alkyl-modified carboxyvinyl polymer. This polymer is an acrylic polymer having a hydrocarbon group. More specifically, it is a polymer or copolymer that contains an alkyl acrylate or alkyl methacrylate in the polymer unit. This polymer can contain an acrylic acid or methacrylic acid that does not have an alkyl group as a polymer unit. In addition, these polymers can be crosslinked polymers in a state of being crosslinked with each other, and can be polymers in which polyacrylic acid and polyalkyl acrylate are crosslinked. Here, the alkyl group can be any of a linear shape, a branched shape, or an alicyclic shape. In addition, the number of carbons of the alkyl group is not particularly limited, and is preferably 2 to 50, and more preferably 10 to 30.

[0064] The (e) alkyl-modified carboxyvinyl polymer functions as an emulsion stabilizer or a thickening agent for the cosmetic material, and when compounded, the compounding amount thereof is preferably 0.0005 to 0.5 mass%, more preferably 0.001 to 0.1 mass%, relative to the total amount of the cosmetic material.

[0065] The cosmetic material of the present application can further contain a (f) medicament ingredient. The medicament ingredient can be arbitrarily selected from among medicaments known in the art according to the purpose, and examples thereof include medicaments having a whitening effect, medicaments having an anti-inflammatory effect, medicaments having a moisturizing effect, and the like. Also, these medicament ingredients are preferably water-soluble.

[0066] As such medicament ingredients, specifically, examples thereof include tranexamic acid and derivatives thereof and salts thereof, glycyrrhizic acid and derivatives thereof and salts thereof, L-ascorbic acid and derivatives thereof and salts thereof, alkoxy salicylic acid and derivatives thereof and salts thereof, glutathione and derivatives thereof and salts thereof, methoxysalicylic acid and derivatives thereof and salts thereof, nicotinamide, and the like. Among these, tranexamic acid and derivatives thereof and salts thereof are preferred, and tranexamic acid is particularly preferred.

[0067] The cosmetic material of the present application can further contain a (g) alkylene oxide derivative. The alkylene oxide can improve the moist feeling of the skin.

[0068] The (f) alkylene oxide derivative that can be used in the cosmetic material of the present application is not particularly limited, and a compound represented by the following formula (a) is preferred.

[0069] R a O-[(AO) p (EO) q ]-R b (a)

[0070] (In the formula, AO is an alkylene oxide group having 3 to 4 carbon atoms, EO is an ethylene oxide group, p and q each are the average addition mole number of the alkylene oxide group having 3 to 4 carbon atoms and the ethylene oxide group, 1 ≤ p ≤ 70, 1 ≤ q ≤ 70, the proportion of the ethylene oxide group with respect to the total of the alkylene oxide group and the ethylene oxide group is 20 to 80 mass%, the alkylene oxide group and the ethylene oxide group can be added in a block shape or in a random shape, R a and R b may be the same or different hydrocarbon groups having 1 to 4 carbon atoms or hydrogen atoms, and the proportion of the number of hydrogen atoms with respect to the number of the hydrocarbon groups of R a and R b is 0.15 or less.

[0071] In the compound represented by the above formula (a), AO is an oxyalkylene group having 3 to 4 carbon atoms, and examples thereof include propylene oxide, butylene oxide, isobutylene oxide, trimethylene, tetramethylene, and the like, with propylene oxide or butylene oxide being preferred. p is the average addition mole number of the oxyalkylene group having 3 to 4 carbon atoms, and 1≤p≤70, preferably 2≤p≤20. q is the average addition mole number of the oxyethylene group, and 1≤q≤70, preferably 2≤q≤20. In addition, (p+q) is preferably 8 to 100.

[0072] In addition, in the compound represented by the above formula (a), the ratio of the oxyethylene group to the total of the oxyalkylene group having 3 to 4 carbon atoms and the oxyethylene group is preferably 20 to 80 mass%. The order of addition of the oxirane and the alkylene oxide having 3 to 4 carbon atoms is not particularly limited. In addition, the oxyethylene group and the oxyalkylene group having 3 to 4 carbon atoms can be added in a block form or in a random form, with the random form being preferred. Here, the block form includes not only a diblock form but also a triblock form.

[0073] R a and R b The same group can be used for each of R a and R b The ratio Y / X of the number of hydrogen atoms (Y) to the number of hydrocarbon groups (X) in the hydrocarbon group of R

[0074] As specific examples of the alkylene oxide derivative, there can be mentioned, for example, polyoxyethylene (10 moles) polyoxypropylene (10 moles) dimethyl ether, polyoxyethylene (9 moles) polyoxypropylene (2 moles) dimethyl ether, polyoxyethylene (14 moles) polyoxypropylene (7 moles) dimethyl ether, polyoxyethylene (6 moles) polyoxypropylene (14 moles) dimethyl ether, polyoxyethylene (15 moles) polyoxypropylene (5 moles) dimethyl ether, polyoxyethylene (25 moles) polyoxypropylene (25 moles) dimethyl ether, polyoxyethylene (9 moles) polyoxybutylene (2 moles) dimethyl ether, polyoxyethylene (14 moles) polyoxybutylene (7 moles) dimethyl ether, polyoxyethylene (10 moles) polyoxypropylene (10 moles) diethyl ether, polyoxyethylene (10 moles) polyoxypropylene (10 moles) dipropyl ether, polyoxyethylene (10 moles) polyoxypropylene (10 moles) dibutyl ether, polyoxyethylene (36 moles) polyoxypropylene (41 moles) dimethyl ether, and the like, with polyoxyethylene (9 moles) polyoxypropylene (2 moles) dimethyl ether, polyoxyethylene (14 moles) polyoxypropylene (7 moles) dimethyl ether, or polyoxyethylene (36 moles) polyoxypropylene (41 moles) dimethyl ether being preferred, and polyoxyethylene (14 moles) polyoxypropylene (7 moles) dimethyl ether being particularly preferred.

[0075] The alkylene oxide derivative used in the cosmetic composition of the present application can be produced by a known method. For example, it can be obtained by adding polyethylene oxide and an alkylene oxide having a carbon number of 3 to 4 to a compound having a hydroxyl group, and then performing etherification in the presence of an alkali catalyst, thereby obtaining the same.

[0076] In the cosmetic composition of the present application, when the alkylene oxide derivative is incorporated, the amount of incorporation is not particularly limited, and is preferably 0.001 to 5% by mass, more preferably 0.01 to 3% by mass, and further preferably 0.1 to 1% by mass, based on the total mass of the cosmetic composition.

[0077] In the cosmetic composition of the present application, other additives that are generally used in cosmetic compositions can be incorporated within a range that does not impair the effects of the present application. As such additives, moisturizers, pH adjusting agents, surfactants, silicone oils, preservatives, chelating agents, stabilizers, colorants, fragrances, thickeners other than the above-mentioned components, and the like can be exemplified. These additives can be appropriately incorporated depending on the dosage form of the cosmetic composition.

[0078] As the moisturizer, any of the moisturizers known in the past can be used. As such moisturizers, polyhydric alcohols, glycol ethers, and more specifically, ethylene glycol, diethylene glycol, dipropylene glycol, 1,3-butanediol, glycerol, hexamethylene glycol, isoprene glycol, polyethylene glycol, hyaluronic acid, xylitol, sorbitol, maltitol, diglycerol (EO) PO adduct, and the like can be exemplified.

[0079] As the pH adjusting agent, commonly used acids or bases, such as hydrochloric acid, sodium hydroxide can be exemplified.

[0080] As the surfactant, any of the surfactants known in the past can be used, and a silicone-based surfactant is preferred. Specifically, polyether-modified siloxanes, such as PEG-10 dimethicone, cetyl dimethicone copolyol, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, PEG / PPG-19 / 19 dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, (dimethicone / (PEG-10 / 15)) crosspolymer, and polysilicone-13, and the like can be exemplified.

[0081] As the silicone oil, chain polysiloxanes (e.g., dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, and the like), cyclic polysiloxanes (e.g., decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and the like), silicone resins that form a three-dimensional network structure, silicone rubbers having an average molecular weight of 200,000 or more, various modified polysiloxanes (amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, and the like), and the like can be exemplified.

[0082] As the preservative, phenoxyethanol, chlorphenesin, benzoic acid, salicylic acid, sorbic acid, p-hydroxybenzoic acid alkyl ester, hexachlorophene, ε-polylysine, and the like can be exemplified.

[0083] As the chelating agent, which is used for the purpose of occluding metal ions and the like in the cosmetic, for example, sodium hexametaphosphate, sodium salt of ethylenediaminetetraacetic acid, and the like can be exemplified.

[0084] The stabilizing agent can be selected depending on the ingredients to be blended, and for example, sodium metabisulfite and the like can be used.

[0085] The kind of the cosmetic of the present application, and the method for producing the cosmetic are not particularly limited. However, the present application significantly improves the properties such as the close feeling when the cosmetic is used, and therefore, the preferred form of the cosmetic of the present application is a beauty liquid.

[0086] Examples

[0087] The present application is specifically explained based on the following examples, but the present application is not limited by these examples. The blending amount is expressed in mass % when not particularly noted.

[0088] [Examples 1 to 9, Comparative Examples 1 to 7]

[0089] The cosmetic of each example and comparative example was produced according to the formulation shown in Table 1.

[0090] Further, as for the properties of these cosmetics, the stickiness, the moist feeling, the smooth feeling, the close feeling, and the stability were evaluated according to the following criteria.

[0091] [Stickiness]

[0092] (Evaluation method)

[0093] Women of 30 to 40 years old were asked to receive a sensory evaluation training, and 3 professional panelists who could evaluate according to a certain criteria were selected. The professional panelists applied each cosmetic to the entire face, gently stroked the skin state after fusion up, down, left and right, and evaluated the stickiness. Each cosmetic was evaluated in 5 stages according to the following absolute evaluation, and the score was given, and the average value was calculated by adding up the scores of each cosmetic by all the panelists and judged.

[0094] (Criteria)

[0095] A: No stickiness feeling

[0096] B: Almost no stickiness feeling

[0097] C: Slightly sticky feeling

[0098] D: Sticky feeling

[0099] E: Strongly sticky feeling

[0100] [Water feeling]

[0101] (Evaluation method)

[0102] Please 30 to 40-year-old women to receive sensory evaluation training, select 3 professional group members who can be evaluated according to certain criteria. The professional group members will apply each cosmetic to the entire face, gently touch the skin state after application, and evaluate the water feeling. According to the following absolute evaluation, evaluate each cosmetic in 5 stages, score, and calculate the average value of the total group members' scores of each cosmetic and make a decision.

[0103] A: clear feeling of water feeling

[0104] B: feeling of water feeling

[0105] C: slightly feel the water feeling

[0106] D: hardly feel the water feeling

[0107] E: no feeling of water feeling

[0108] [Smooth feeling]

[0109] (Evaluation method)

[0110] Please 30 to 40-year-old women to receive sensory evaluation training, select 3 professional group members who can be evaluated according to certain criteria. The professional group members will apply each cosmetic to the entire face, gently touch the skin state after application, and evaluate the water feeling. According to the following absolute evaluation, evaluate each cosmetic in 5 stages, score, and calculate the average value of the total group members' scores of each cosmetic and make a decision.

[0111] (Benchmark)

[0112] A: clear feeling of smoothness

[0113] B: good feeling of smoothness

[0114] C: slightly feel the smoothness

[0115] D: hardly feel the smoothness

[0116] E: no feeling of smoothness

[0117] [Adhesion feeling]

[0118] (Evaluation method)

[0119] Women aged 30 to 40 years old were subjected to sensory evaluation training, and 3 panelists who could evaluate according to certain criteria were selected. The panelists applied each cosmetic material to the entire face, touched the skin state immediately after fusion, and evaluated the adhesion feeling. Each cosmetic material was evaluated in 5 stages according to the following absolute evaluation, and the scores were evaluated, the average value was calculated by adding the scores of all panelists of each cosmetic material, and the determination was made.

[0120] (Benchmark)

[0121] A: felt strong adhesion to the skin

[0122] B: felt adhesion

[0123] C: felt appropriate adhesion

[0124] D: slightly felt adhesion

[0125] E: felt no adhesion

[0126] [Stability]

[0127] (Evaluation method)

[0128] Storage was performed under low temperature and high temperature conditions, and the state of the cosmetic material was visually confirmed and evaluated.

[0129] (Benchmark)

[0130] Good: no change under visual observation

[0131] Fail: gelation occurred

[0132] [Table 1]

[0133]

[0134] In the table, the blending ratio of each component is mass %.

[0135] From the results, it was found that all the cosmetic materials of the present application were excellent in stickiness, moist feeling, smooth feeling, adhesion feeling, and stability. In addition, it was found that increasing the acrylamide-based thickener tended to improve the adhesion feeling.

[0136] In addition, if the results of the comparative examples are also considered, it was found that the cosmetic material of the present application achieved excellent effects by using both the acrylamide-based thickener and the carob seed gum, and the effects of the present application could not be obtained even by combining a carboxyvinyl polymer or the like. In addition, it was found that although the moist feeling or the like could be improved by using polyethylene glycol instead of the acrylamide-based thickener, the stability of the cosmetic material became insufficient.

[0137] Further, the thickening sensation (density sensation) of the cosmetic materials of Examples 1 to 3 and 6 to 9 was evaluated according to the following criteria. The results are shown in Table 2.

[0138] [Thickening sensation (density sensation)]

[0139] (Evaluation method)

[0140] Women aged 30 to 40 were trained to perform sensory evaluations, and three panelists who could perform evaluations according to the criteria were selected. The panelists applied each cosmetic material to the entire face, gently stroked the skin state before fusion with the skin, and evaluated the thickening sensation. Each cosmetic material was evaluated in five stages according to the following absolute evaluation, and the score was evaluated. The average value was calculated by adding up the scores of all panelists for each cosmetic material and was determined.

[0141] (Criteria)

[0142] A: Strongly felt thickening sensation

[0143] B: Felt thickening sensation

[0144] C: Felt appropriate thickening sensation

[0145] D: Felt slightly thickening sensation

[0146] E: Felt no thickening sensation

[0147] [Table 2]

[0148]

[0149] In the table, only the main components of each example are described, and the addition of additives and water is omitted.

[0150] From the results, it was found that if the amount of acrylamide thickener is increased, there is a tendency for the thickening sensation to improve.

Claims

1. A cosmetic material comprising: (a) an acrylamide-based thickening agent, (b) carob seed gum, (c) water, (d) a carboxyvinyl polymer, (e) an alkyl-modified carboxyvinyl polymer, the (a) acrylamide-based thickening agent comprising a dimethyl acrylamide / acryloyl dimethyl sodium taurate cross-linked polymer, the blending amount of the acrylamide-based thickening agent being 0.01 to 1 mass% relative to the total amount of the cosmetic material, the mass ratio of the total amount of the (a) acrylamide-based thickening agent to the total amount of the (b) carob seed gum being 0.2 to 3.

2. The cosmetic material according to claim 1, wherein the blending amount of the (d) carboxyvinyl polymer being 0.01 to 0.5 mass% relative to the total amount of the cosmetic material.

3. The cosmetic material according to claim 1 or 2, wherein the blending amount of the (e) alkyl-modified carboxyvinyl polymer being 0.0005 to 0.5 mass% relative to the total amount of the cosmetic material.

4. The cosmetic material according to claim 1 or 2, further comprising a (f) medicament ingredient.

5. The cosmetic material according to claim 1 or 2, further comprising a (g) alkylene oxide derivative, the (g) alkylene oxide derivative being a compound represented by the following formula (a), R a O-[(AO) p (EO) q ]-R b (a) wherein AO is an oxyalkylene group having 3 to 4 carbon atoms, EO is an oxyethylene group, p and q are the average addition mole numbers of the oxyalkylene group having 3 to 4 carbon atoms and the oxyethylene group, respectively, 1 < p < 70, 1 < q < 70, the ratio of the oxyethylene group to the total of the oxyalkylene group and the oxyethylene group is 20 to 80% by mass, the oxyalkylene group and the oxyethylene group are optionally added in a block or random manner, R a and R b are optionally the same or different hydrocarbon groups having 1 to 4 carbon atoms or are hydrogen atoms, and the ratio of the number of hydrogen atoms to the number of the hydrocarbon groups of R a and R b is 0.15 or less.

6. The cosmetic material according to claim 1 or 2, which is a beauty liquid.

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