JP2012136489A - Skin cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skin cosmetic excellent in spreadability on the skin and conformability with the skin in using by directly coating on the skin, having rich feeling on use, has no feeling of greasiness, imparting a continuous moisture retaining property and smooth makeup application.SOLUTION: The skin cosmetic is characterized by comprising (A) 0.05-5 mass% of a copolymer obtained from 30-90 mol% of a monomer (a-1) represented by formula 1 [figure 1] (in the formula Ris a hydrogen atom or methyl, Ris -(CH)-, n is an integer of 1-4), 10-70 mol% of a monomer copolymerizable with a monomer (a-2) represented by formula 1, (B) 3-15 mass% of a polyglycerin having 2-14 of polymerization degree, (C) 2-10 mass% of a compound represented by formula 2 [figure 2] (in the formula, Gly is a residue represented by removing a hydroxy group from the glycerin), and (D) 0.1-1 mass% of a carboxyvinyl polymer or an alkyl-modified carboxyvinyl polymer.

Description

  The present invention relates to skin cosmetics such as skin lotions, emulsions, creams, and beauty essences, and in particular, when applied directly to the skin, it has good spread on the skin and good compatibility with the skin. The present invention relates to a universal skin cosmetic that has a rich feeling of use, is non-sticky, has a sustained moisturizing effect, is excellent in makeup, and can be used as an all-in-one type.

  The human skin surface is covered with a sebum membrane, and the transpiration of water is moderately suppressed. Keeping skin moisture in an appropriate range is very important for skin health. However, due to changes in temperature and humidity, ultraviolet rays, excessive friction during face washing and aging, intercellular lipids, natural moisturizing factors and moisture in the stratum corneum tend to be lost. Trouble is likely to occur. Therefore, in order to keep the skin normal, skin care cosmetics such as skin lotion, milky lotion, cream and cosmetic liquid are used to supplement the skin with moisture and oil. As a general usage method, after washing the face, water and moisturizing ingredients are replenished with skin lotion, and then oil is also supplemented with milky lotion and cream to protect the skin and make it soft.

  Here, oils usually used in emulsions and creams are animal and vegetable oils, mineral oils, ester oils, ether oils, and the like. These oils are effective in suppressing moisture evaporation due to their occlusive properties and emollients that soften the skin. Has an effect. However, it not only has a sticky feeling peculiar to oil, but may cause shine after use. In some cases, particularly in people with oily skin or mixed skin, it may cause skin troubles such as acne.

  On the other hand, with the recent advancement of women in society and increased opportunities for overnight stays during travel and business trips, there has been a growing demand for makeup in a shorter time. Two-in-one and all-in-one type cosmetics have been proposed that integrate the functions of emulsion, cream, and makeup base. In particular, such products need to be moisturized and emollient while having a fresh feeling of use, and a gel (gel) form tends to be preferred as a dosage form. However, in that case, it is necessary that the oil component is not blended or blended in a small amount, and it is the actual situation that a sufficient protective effect and emollient effect cannot be obtained.

  Therefore, as cosmetics with improved moisture retention without blending oil, cosmetics for moisturizing (Patent Document 1) combining polyethylene glycol and carboxyvinyl polymer, and moisturizing compositions combining polyglycerin and 1,3-butanediol. (Patent Document 2), an aqueous composition for external use of skin in which glycerin and a natural polymer are combined (Patent Document 3) and the like have been proposed. However, in these cosmetics, the stickiness peculiar to the moisturizer became strong, the spread was poor, and the conformability to the skin was also poor. Furthermore, although a temporary moisturizing effect was exhibited, a continuous moisturizing effect could not be obtained, and the emollient property was poor.

  Therefore, in Patent Document 4 and Patent Document 5, attempts have been made to exert oil-specific functions by using a glyceryl amidoethyl methacrylate / stearyl methacrylate copolymer or a specific alkylene oxide derivative. However, these cosmetics not only have poor and familiarity, but also cannot obtain a sufficient emollient effect. In addition, it is not preferred for high-quality creams and beauty essences, and it does not have a rich feeling when applied, and it may cause makeup or disintegration. It was not satisfactory enough.

JP 2010-64986 A JP 09-208450 A JP 2004-168725 A JP 2009-149622 A JP 2006-282539 A

  In view of the above problems, the present invention, when applied directly to the skin, has good on-the-skin and familiarity with the skin, has a rich feeling of use, is not sticky, and is durable. An object of the present invention is to provide a skin cosmetic that provides a moisturizing effect and is excellent in makeup paste.

  In order to achieve the above object, as a result of intensive studies, the present inventors combined with the following four specific components to provide excellent spreadability on the skin and good conformability to the skin. It has a rich and rich feeling of use as found in emulsified cosmetics, does not give a sticky feeling when applied to the skin or when dry, has a continuous moisturizing feeling, The present inventors have found that a skin cosmetic that is less likely to cause makeup collapse and has a good makeup paste can be obtained.

  That is, the present invention comprises (A) (a-1) 30 to 90 mol% of a monomer represented by formula 1, and (a-2) a monomer copolymerizable with the monomer represented by formula 1 0.05 to 5% by mass of a copolymer obtained from 10 to 70% by mol, (B) 3 to 15% by mass of polyglycerol having a polymerization degree of 2 to 14, and (C) a compound represented by formula 2 2 to 10% by mass, and (D) 0.1 to 1% by mass of a carboxyvinyl polymer or an alkyl-modified carboxyvinyl polymer.

(In the formula, R ¹ represents a hydrogen atom or a methyl group, R ² represents — (CH ₂ ) _n —, and n is an integer of 1 to 4).

(In the formula, Gly is a residue obtained by removing a hydroxyl group from glycerin, PO is an oxypropylene group, EO is an oxyethylene group, and BO is an oxybutylene group, and x, y, and z are average additions of PO, EO, and BO, respectively. (Mole number, x + y is a value of 1 to 30, z is a value of 1 to 5, and the mass ratio of PO to EO (PO / EO) is 1/5 to 5/1.)

  The skin cosmetic composition of the present invention has a good moisturizing effect on the skin, has good fit on the skin, has a rich feeling of use, and is non-sticky when applied directly to the skin. Is a universal skin cosmetic that can be used as an all-in-one type that integrates functions such as lotion, milky lotion, cream, and makeup base.

  Embodiments of the present invention will be described below. The skin cosmetic of the present invention comprises 0.05 to 5% by mass of component (A), 3 to 15% by mass of component (B), 2 to 10% by mass of component (C), and 0. Contains 1-1% by weight.

  The component (A) used in the present invention is composed of (a-1) 30 to 90 mol% of the monomer represented by the above formula 1 and (a-2) a monomer copolymerizable with the monomer represented by the formula 1. It is a copolymer obtained from 10 to 70 mol% of the monomer.

(A-1) In the monomer represented by the above formula 1, R ¹ in the formula represents a hydrogen atom or a methyl group, and a methyl group is preferred from the viewpoint of stability. R ² represents — (CH ₂ ) _n —, where n is an integer of 1 to 4, specifically — (CH ₂ ) —, — (CH ₂ ) ₂ —, — (CH ₂ ) ₃ —, — (CH ₂ ) ₄ —, and — (CH ₂ ) ₂ — is preferable because of availability. Specific examples of the monomer represented by Formula 1 include glycerol-1-methacryloyloxyethylene urethane, glycerol-1-methacryloyloxypropylene urethane, and the like. From the viewpoint of ease of synthesis, glycerol-1-methacryloyloxy Ethylene urethane is preferred. As a method for synthesizing the monomer represented by Formula 1, a compound obtained by subjecting a cyclic ketal and (meth) acryloyloxyalkylene isocyanate to a urethanation reaction in a water-containing solvent in the presence of a urethanization reaction catalyst is used. Examples include a method of hydrolytic ring-opening reaction. In the present specification, (meth) acryloyl represents methacryloyl or acryloyl, and (meth) acrylate represents methacrylate or acrylate.

  In the component (A), the monomer (a-1) represented by the formula 1 is 30 to 90 mol%, and the content of the other copolymerizable monomer (a-2) is 10 to 70 mol. % Copolymer. In terms of familiarity with the skin, durability of the moisturizing effect, and makeup paste, the content of the monomer (a-1) represented by formula 1 is 40 to 70 mol%, and other copolymerizable monomers are available. The copolymer whose content rate of a monomer (a-2) is 30-60 mol% is preferable. As the other copolymerizable monomer (a-2), a known monomer can be used, but a monomer represented by the following formula 3 is preferable. In addition, 1 type (s) or 2 or more types can be used for another monomer (a-2).

In the formula, L ¹ represents —C ₆ H ₄ —, —C ₆ H ₁₀ —, — (C═O) —O—, —O—, — (C═O) NH—, —O— (C═O). )-Or -O- (C = O) -O-, and L ² is a linear or branched alkyl group having 10 to 22 carbon atoms, such as decyl, dodecyl, tetradodecyl, hexadecyl, octadecyl represents group, a docosanyl group, R ³ represents a hydrogen atom or a methyl group.

  Examples of the monomer represented by Formula 3 include linear or branched alkyls such as decyl (meth) acrylate, dodecyl (meth) acrylate, tetradecyl (meth) acrylate, hexadecyl (meth) acrylate, and octadecyl (meth) acrylate ( Examples thereof include vinyl ester monomers such as (meth) acrylate, vinyl decanoate, vinyl dodecanoate, vinyl hexadecanoate, and vinyl octadecanoate. Among these, stearyl (meth) acrylate and octadecyl (meth) acrylate are preferable from the viewpoint of stability. In addition, in order to make it easy to handle (A) component, what was diluted with polyhydric alcohols, such as glycerol and 1, 3- butanediol, can be used.

  The molecular weight of the component (A) is a mass average molecular weight in the range of 5,000 to 500,000, preferably 10,000 to 200,000. If the mass average molecular weight is less than 5,000, the moisturizing effect may not be sufficiently obtained, and if it exceeds 500,000, blending may be difficult.

  The component (B) used in the present invention is a condensate of glycerin having a polymerization degree of 2 to 14 having at least one ether bond, and is generally a method of polymerizing by intermolecular dehydration reaction between glycerin, It is prepared by the glycidol method by addition reaction using 3-epoxy-1-propanol (glycidol). Specific examples of the compound include diglycerin, triglycerin, tetraglycerin, pentaglycerin, hexaglycerin, heptaglycerin, octadecaglycerin, decaglycerin, undecaglycerin, dodecaglycerin, and tetradecaglycerin. Among them, polyglycerin having a degree of polymerization of 6 to 10 is preferable, and decaglycerin having a degree of polymerization of 10 is more preferable in terms of spreading on the skin and adaptability. (B) 1 type (s) or 2 or more types can be used for a component.

The component (C) used in the present invention is a compound represented by the above formula 2, and is an alkylene oxide derivative in which an oxypropylene group, an oxyethylene group, and an oxybutylene group are added to glycerin. In the formula, Gly represents a residue obtained by removing a hydroxyl group from glycerin, PO represents an oxypropylene group, EO represents an oxyethylene group, and BO represents an oxybutylene group. x, y, and z are the added moles of PO, EO, and BO, respectively, x + y is a value of 1-30, z is a value of 1-5, and mass ratio of PO and EO (PO / EO) Is 1/5 to 5/1. Each value of x, y, z and the mass ratio of PO and EO were determined by measuring the product obtained by adding alkylene oxide by ¹ H-NMR (nuclear magnetic resonance method) and calculating the average number of moles of each addition. It can obtain | require by calculating | requiring and converting to mass ratio. The addition state of PO and EO may be random or block, but is preferably added in a random manner in order to obtain a high moisturizing effect. BO is added to the terminal in a block form, and examples of the compound that gives an oxybutylene group include 1,2-butylene oxide, 2,3-butylene oxide, and tetramethylene oxide (tetrahydrofuran). 1,2-butylene oxide is preferred from the standpoints of ease of handling and reaction control. When these oxyalkylene groups are added, the addition reaction is usually carried out using a phase transfer catalyst, a Lewis acid catalyst, an alkali catalyst or the like. In general, it is preferable to use an alkali catalyst such as potassium hydroxide.

  In the component (D) used in the present invention, the carboxyvinyl polymer is a water-soluble vinyl polymer mainly composed of acrylic acid crosslinked with allyl ether of sucrose or allyl ether of pentaerythritol. In addition, in the component (D), the alkyl-modified carboxyvinyl polymer is a copolymer of acrylic acid or methacrylic acid and alkyl acrylate or alkyl methacrylate, and is a linear or acrylic acid and C10-30 linear or It is a compound in which an ester of a branched alkyl group and an ester of an alkyl group are copolymerized in the same manner as methacrylic acid. As the component (D), one having a viscosity of 50 to 300 Pa · s in a 0.5 mass% aqueous solution adjusted to pH = 5.5 is suitably used. Usually, the viscosity of the aqueous solution containing the component (D) can be increased by neutralizing with a basic amino acid such as sodium hydroxide, potassium hydroxide, triethanolamine, triethylamine, lysine or arginine. As the carboxyvinyl polymer or the alkyl-modified carboxyvinyl polymer, a product marketed as a cosmetic raw material can be used. As a specific product, the carboxyvinyl polymer is “AQUPEC HV-505E” manufactured by Sumitomo Seika Co., Ltd. ”,“ Carbopol 940 ”“ Carbopol 941 ”manufactured by Lubrizol Advanced Materials,“ Syntalen K ”“ Syntalen L ”manufactured by 3V Sigma, etc., and alkyl-modified carboxyvinyl polymer manufactured by Sumitomo Seika Co., Ltd. “AQUPEC HV-501ER”, “Carbopol 1342”, “Carbopol ETD2020” manufactured by Lubrizol Advanced Materials, and the like. 1 type, or 2 or more types can each be used for a carboxy vinyl polymer and an alkyl modified carboxy vinyl polymer, and a carboxy vinyl polymer and an alkyl modified carboxy vinyl polymer can also be used together.

  In this invention, content of said (A) component is 0.05-5 mass% in skin cosmetics, Preferably it is 0.1-3 mass%, More preferably, it is 0.2-2. % By mass. If it is less than 0.05% by mass, an excellent moisturizing effect cannot be obtained, and makeup paste may not be bad. If it exceeds 5% by mass, the conformity to the skin is poor and the effect is commensurate with the blending amount. It may not be obtained.

  (B) Content of the polyglycerin of a component is 3-15 mass% in skin cosmetics, Preferably it is 4-12 mass%, More preferably, it is 5-10 mass%. If the amount is less than 3% by mass, a sufficient moisturizing effect may not be obtained. If the amount exceeds 15% by mass, the skin does not spread well, a sticky feeling may occur, and the makeup paste may deteriorate.

  (C) Content of the compound shown by Formula 2 of a component is 2-10 mass% in skin cosmetics, Preferably it is 3-9 mass%, More preferably, it is 3-7 mass%. If it is less than 2% by mass, a sticky feeling may be produced, and the conformability may be deteriorated. If it exceeds 10% by mass, the spread on the skin may be poor and the storage stability may be deteriorated.

  The content of the component (D) carboxyvinyl polymer or alkyl-modified carboxyvinyl polymer is 0.1 to 1% by mass, preferably 0.2 to 0.8% by mass, more preferably in the skin cosmetic. Is 0.3-0.7 mass%. If the amount is less than 0.1% by mass, a rich feeling of use cannot be obtained, and a stable skin cosmetic may not be prepared. If the amount exceeds 1% by mass, a sticky feeling is produced, and the makeup becomes poor. Sometimes.

  The skin cosmetic of the present invention can be prepared by mixing water or a lower alcohol, preferably water and the components (A) to (D). Moreover, it is also possible to mix | blend with the skin cosmetics of this invention the other component normally used for cosmetics in the range which does not impair the performance of this invention.

  Hereinafter, the present invention will be described more specifically with reference to examples and comparative examples.

[Examples 1 to 6 and Comparative Examples 1 to 9]
Compositions shown in Table 1 were prepared as skin cosmetics and evaluated by the following methods. The results are shown in Table 1. In the following notation, “%” means mass%. Each composition was adjusted to around pH 5.5 with potassium hydroxide.

(1) Spread on skin (extensibility)
Twenty men and women (25 to 47 years old) were panelists, and the skin feel when applying a skin cosmetic (about 2 g) after washing the face was evaluated according to the following criteria.
2 points: When it feels good on the skin.
1 point: When the skin feels slightly good.
0 point: When the skin feels that it does not spread well.

The total score of 20 people was calculated and evaluated according to the following criteria and displayed in Table 1.
A: There is no panel with a total score of 30 points or more and an evaluation of 0 points: a cosmetic with very good spread on the skin.
○: One or two panelists with a total score of 30 or more and an evaluation of 0 points: cosmetics that spread well on the skin.
(Triangle | delta): A total score is 20 points or more and less than 30 points | pieces: It is cosmetics with slightly insufficient spreading on skin.
X: Total score is less than 20: Cosmetics that do not spread well on the skin.

(2) Familiarity to the skin Twenty men and women (25 to 47 years old) were panelists, and the skin feel when applying a skin cosmetic (about 2 g) after washing the face was evaluated according to the following criteria.
2 points: When the skin feels good.
1 point: When the fit to the skin is slightly good.
0 point: When it is felt that the conformity to the skin is not good.

The total score of 20 people was calculated and evaluated according to the following criteria and displayed in Table 1.
A: There is no panel with a total score of 30 points or more and an evaluation of 0 points: Cosmetics with very good compatibility with the skin.
◯: One or two panelists with a total score of 30 or more and an evaluation of 0 points: cosmetics with good skin adaptability.
(Triangle | delta): A total score is 20 points or more and less than 30 points | pieces: It is a cosmetic with a slightly good adaptability to skin.
X: The total score is less than 20 points: cosmetics with poor conformability to the skin.

(3) Rich feeling of use Twenty men and women (25 to 47 years old) were panelists, and the feel when applying skin cosmetics (about 2 g) after washing was evaluated according to the following criteria.
2 points: When the user feels that the user experience is as rich as cream.
1 point: When the user feels that there is a slightly rich feeling like cream.
0 points: When the user feels that the user experience is not as rich as the cream.

The total score of 20 people was calculated and evaluated according to the following criteria and displayed in Table 1.
A: There are no panelists with a total score of 30 or more and an evaluation of 0 points: Cosmetics that feel a rich feeling like cream.
○: One or two panelists with a total score of 30 points or more and an evaluation of 0 points: Cosmetics that feel a rich feeling like cream.
(Triangle | delta): Total score is 20 points or more and less than 30 points | pieces: It is a cosmetic which feels a somewhat rich use feeling like cream.
X: Total score of less than 20: Cosmetics lacking a rich feeling of use such as cream.

(4) Stickiness Twenty men and women (25 to 47 years old) were panelists, and after washing their face, skin cosmetics (about 2 g) were applied, and the skin feel after 10 minutes was evaluated according to the following criteria.
2 points: When the skin feels non-sticky.
1 point: When the skin feels somewhat sticky.
0 points: When the skin feels sticky.

The total score of 20 people was calculated and evaluated according to the following criteria and displayed in Table 1.
A: The total score is 30 points or more, and there is no panel with an evaluation of 0 points: the cosmetic does not feel sticky.
○: One or two panelists with a total score of 30 or more and an evaluation of 0 points: Cosmetics that hardly feel sticky.
(Triangle | delta): A total score is 20 points or more and less than 30 points | pieces: It is cosmetics which feel a stickiness a little.
X: Total score is less than 20: It is a cosmetic with a sticky feeling.

(5) Sustainability of moisturizing effect 20 males and females (25 to 47 years old) were panelists, and after washing their face, skin cosmetics (approx. 2 g) were applied, and the moisture content of the skin after 2 hours was evaluated according to the following criteria. .
2 points: When the skin feels sufficiently moistened just after use.
1 point: When feeling that the moisture of the skin is slightly insufficient compared with immediately after use.
0 point: When it feels that the moisture of the skin is clearly insufficient compared with immediately after use.

The total score of 20 people was calculated and evaluated according to the following criteria and displayed in Table 1.
A: There is no panel with a total score of 30 points or more and an evaluation of 0 points: a cosmetic excellent in sustained moisturizing effect.
◯: One or two panelists with a total score of 30 or more and an evaluation of 0: A cosmetic with a long-lasting moisturizing effect.
(Triangle | delta): A total score is 20 points or more and less than 30 points | pieces: It is a cosmetic which lacks a continuous moisturizing effect somewhat.
X: Total score is less than 20: Cosmetics lacking a continuous moisturizing effect.

(6) Makeup Glue 20 females (25 to 47 years old) are panelists, and after washing their face, apply skin cosmetic (about 2g) and apply the foundation after 10 minutes. did.
2 points: When you feel that makeup is good.
1 point: When you feel the makeup is slightly better.
0 points: When the makeup feels bad.

The total score of 20 people was calculated and evaluated according to the following criteria and displayed in Table 1.
A: There are no panelists with a total score of 30 or more and an evaluation of 0: A cosmetic paste with very good makeup.
◯: One or two panelists with a total score of 30 or more and an evaluation of 0: A cosmetic with good makeup.
(Triangle | delta): A total score is 20 points or more and less than 30 points | pieces: It is a cosmetic with not much good makeup paste.
X: Total score is less than 20: Cosmetics with poor makeup paste.

* 1 The numbers in the table “Ceracte (registered trademark) -L” (manufactured by NOF Corporation) represent the content as component (A) contained in “Ceracte-L”.
(Ceracte-L composition: component (A) 5%, glycerin 66.5%, 1,3-butanediol 28.5%)
The component (A) is composed of 60 mol% of monomers shown in Table 2 below in terms of R ¹ and R ² in formula ¹ , and monomers shown in Table 3 below in terms of L ¹ , L ² and R ³ in formula 3. It is a copolymer obtained from 40 mol%.

* 2 "Polyglycerin # 500" (Sakamoto Pharmaceutical Co., Ltd.) (Compound name: Hexaglycerin)
* 3 "Polyglycerin # 750" (Sakamoto Pharmaceutical Co., Ltd.) (Compound name: Decaglycerin)
* 4 "WIRBRIDE S-753" (manufactured by NOF Corporation)
The component (C) is a compound shown in Table 4 below in terms of x + y and z in formula 2 and the mass ratio (PO / EO) of PO and EO.

* 5 “AQUAEC HV-505E” (manufactured by Sumitomo Seika Co., Ltd.) (carboxyvinyl polymer) (0.5% aqueous solution (pH = 5.5) viscosity 140 Pa · s)
* 6 “AQUAEC HV-501ER” (manufactured by Sumitomo Seika Co., Ltd.) (alkyl-modified carboxyvinyl polymer) (0.5% aqueous solution (pH = 5.5) viscosity 190 Pa · s)
* 7 “Unilube (registered trademark) 50TG-32” (manufactured by NOF Corporation) (Cosmetic label: PPG-24 glyceryl-24)

  From the results of Examples 1 to 6, all of the skin cosmetics of the present invention have good stretchability on the skin and familiarity with the skin, have a rich feeling of use, are not sticky, and have a continuous moisturizing effect. It can be seen that an effect excellent in makeup paste is obtained.

  On the other hand, in Comparative Examples 1-9, sufficient performance is not obtained. That is, in Comparative Example 1, the component (C) is not blended, so that the spread and familiarity on the skin is insufficient, and a sticky feeling is generated. In Comparative Example 2, the component (A) is Since it is not blended, it has insufficient spread and makeup on the skin, and has a rich feeling of use and moisturizing effect. In Comparative Example 3, since the blending amount of the component (B) is less than the lower limit value defined in the present invention, the rich usability and the moisturizing effect are poor. In Comparative Example 4, the blending amount of the component (D) is defined in the present invention. Since it exceeds the upper limit, the makeup paste is insufficient, the spread on the skin is insufficient, the feeling of rich use is poor, and a sticky feeling is generated. In Comparative Example 5, since the component (B) is replaced with another component (glycerin), the stretchability and familiarity on the skin are insufficient, the feeling of rich use is poor, and the stickiness is generated. In Comparative Example 6, the amount of the component (B) exceeds the upper limit specified in the present invention, and the amount of the component (C) exceeds the upper limit specified in the present invention. The above-mentioned spread, familiarity and makeup paste are insufficient, and a sticky feeling is generated. In Comparative Example 7, since component (D) is replaced with another component (xanthan gum), the spread and familiarity on the skin, makeup paste is insufficient, and the rich feeling of use is poor. Comparative Example 8 Then, since the component (C) is replaced with other components, the conformability to the skin and the makeup paste are insufficient, and a sticky feeling is generated. In Comparative Example 9, since the blending amount of the component (D) is less than the lower limit specified in the present invention, the spread on the skin is insufficient, and the rich feeling of use and the moisturizing effect are poor.

Claims (1)

(A) (a-1) 30 to 90 mol% of the monomer represented by Formula 1 and (a-2) 10 to 70 mol% of a monomer copolymerizable with the monomer represented by Formula 1 0.05 to 5% by mass of a copolymer obtained from (B) 3 to 15% by mass of polyglycerol having a polymerization degree of 2 to 14, and (C) 2 to 10% by mass of a compound represented by formula 2 (D) Skin cosmetics characterized by containing 0.1-1 mass% of carboxy vinyl polymer or alkyl-modified carboxy vinyl polymer.

(In the formula, R ¹ represents a hydrogen atom or a methyl group, R ² represents — (CH ₂ ) _n —, and n is an integer of 1 to 4).

(In the formula, Gly is a residue obtained by removing a hydroxyl group from glycerin, PO is an oxypropylene group, EO is an oxyethylene group, and BO is an oxybutylene group, and x, y, and z are average additions of PO, EO, and BO, respectively. (Mole number, x + y is a value of 1 to 30, z is a value of 1 to 5, and the mass ratio of PO to EO (PO / EO) is 1/5 to 5/1.)