JP7430574B2 - gel skin cosmetics - Google Patents

Description

The present invention relates to gel-like skin cosmetics.

Various formulations such as lotions, gels, emulsions, and creams have been known as skin cosmetics that give the skin a moisturizing and firming feeling (the skin feels appropriately pulled and does not sag). ing.

Among these, emulsions and creams contain a relatively large amount of oily components such as higher alcohols, and therefore have an excellent moisturizing feeling and long-lasting moisturizing feeling after application. On the other hand, water-based gels and lotions are characterized by a refreshing feel. However, the durability of the moisturizing feeling tends to be poor.

For this reason, conventionally, skin care has been carried out by, for example, using a gel or lotion to infiltrate water into the skin, and then using an emulsion or cream to maintain the moisturizing feeling. However, it is complicated to take care of the skin using multiple skin cosmetics. For this reason, in recent years, there has been a demand for skin cosmetics that provide both a fresh feeling of use and a long-lasting moisturizing effect. Demand for cosmetics (also called cosmetics) is increasing.

So far, silicone film-forming agents, oligoesters of mixed fatty acids containing dibasic acids and glycerin, silicone surfactants, and water-in-oil types (so-called " Attempts have been made to reduce the sticky feeling characteristic of oil-based ingredients after application and improve the sustainability of the moisturizing feeling by using emulsified skin cosmetics of the "W/Si (Water in Silicone)" type (for example, patents Reference 1). However, Patent Document 1 is a W/Si type emulsion system that uses a silicone surfactant and has a relatively high silicone oil content, and it is difficult to obtain a fresh application feel, and it is difficult to achieve a sustained moisturizing feeling and a smooth texture. There is room for improvement in sustainability.

Japanese Patent Application Publication No. 2009-149623

In this way, conventional emulsified cosmetics for the skin do not have a fresh application feel, and there is room for improvement in the sustainability of the moisturizing feeling and the sustainability of the smooth texture. When used as a cosmetic, it has been difficult to obtain a satisfactory feeling of use.

As for the sustainability of the moisturizing feeling and the sustainability of the smooth texture, for example, when used before going to bed, the effect lasts until the next morning, and when used in the morning, the effect lasts until the evening. is required.

On the other hand, gel-like skin cosmetics have a fresh feel when applied, so they are used in massage cosmetics, cleansing cosmetics, and beauty serum gels containing serum ingredients. There is a need for gel-like skin cosmetics with these features.

Therefore, an object of the present invention is to provide a gel-like skin cosmetic that has a fresh and thick application feel and has excellent long-lasting moisturizing feeling and long-lasting smooth texture. In addition, in this specification, "thick application feel" means that when a cosmetic is applied to the skin, the fingers can feel a somewhat thick application layer, and "smooth texture" refers to the feeling of a somewhat thick application layer. , meaning a smooth feel without feeling any roughness or unevenness on the skin surface.

As a result of intensive studies to achieve the above object, the present inventor found that component A: a polymer containing a structural unit derived from acryloyl dimethyl taurate, component B: alkyl-modified carboxyvinyl polymer, component C: pentaerythritol ester, component Contains a predetermined amount of D: N-lauroyl-L-glutamic acid ester, and component E: dimethylpolysiloxane having a kinematic viscosity of 30,000 to 100,000 mm ² /s at 25° C., and further component F: nonionic surfactant. and Ingredient G: It was discovered that a gel-like skin cosmetic containing water has a fresh and thick application feel, and has excellent long-lasting moisturizing feeling and long-lasting smooth texture, leading to the completion of the present invention. .

That is, the present invention
[1] Contains the following components A, B, C, D, E, F, and G,
The content of component A is 0.2 to 1.2% by mass,
The content of component B is 0.03 to 0.4% by mass,
The content of component C is 0.2 to 3.0% by mass,
The content of component D is 0.2 to 3.0% by mass,
A gel-like skin cosmetic with an ingredient E content of 0.01 to 0.7;
Component A: Polymer containing structural units derived from acryloyl dimethyl taurate Component B: Alkyl-modified carboxyvinyl polymer Component C: Pentaerythritol ester component D: N-lauroyl-L-glutamic acid ester Component E: Kinematic viscosity at 25°C 30,000 to 100,000 mm ² /s dimethylpolysiloxane component F: nonionic surfactant component G: water [2] component F is monoglycerin fatty acid ester, polyglycerin fatty acid ester, sorbitan fatty acid ester, polyoxyethylene The present invention relates to the gel-like skin cosmetic according to [1], which is at least one nonionic surfactant selected from the group consisting of fatty acid ester, polyoxyethylene glycerin fatty acid ester, and polyoxyethylene sorbitan fatty acid ester.

The gel-like skin cosmetic of the present invention has a fresh and thick application feel, and has excellent long-lasting moisturizing feeling and long-lasting smooth texture.

In this specification, unless otherwise specified, the numerical range "X to Y" is intended to be "more than or equal to X and less than or equal to Y." In addition, unless otherwise specified in this specification, mass % representing the content of a component is a value based on the mass of the entire gel skin cosmetic as 100 mass %.

The gel-like skin cosmetic of the present invention comprises a polymer containing a structural unit derived from acryloyl dimethyl taurate (component A), an alkyl-modified carboxyvinyl polymer (component B), a pentaerythritol ester (component C), N-lauroyl- L-glutamic acid ester (component D), dimethylpolysiloxane having a kinematic viscosity of 30,000 to 100,000 mm ² /s at 25°C (component E), a nonionic surfactant (component F), and water (component G) Contains.

The gel-like skin cosmetic of the present invention may further contain components other than the essential components A to G, depending on the intended use. Each of the components A to G and other components contained in the gel-like skin cosmetic of the present invention may be used alone or in combination of two or more.

<Component A>
Component A is a polymer containing structural units derived from acryloyl dimethyl taurate. Component A is a water-soluble polymer having emulsifying power, and has the effect of thickening the system to form a gel formulation, and imparting a fresh and thick application feel.

Examples of the acryloyl dimethyl taurate include sodium acryloyl dimethyl taurate. Component A may contain structural units derived from monomer components other than acryloyl dimethyl taurate. Examples of monomer components other than acryloyl dimethyl taurate include (meth)acrylic acids such as acrylic acid; (meth)acrylates such as sodium acrylate; hydroxyl group-containing acrylic monomers such as hydroxyethyl acrylate; Examples include amide group-containing acrylic monomers such as . As component A, for example, a copolymer of acrylic acid and acryloyl dimethyl taurate, a copolymer of hydroxyethyl acrylate and acryloyl dimethyl taurate, a copolymer of acrylic acid, acrylate, acrylamide, and acryloyl dimethyl taurate. Examples include.

Component A includes (Na acrylate/Na acryloyl dimethyl taurate) copolymer (INCI name: Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer), (hydroxyethyl acrylate/Na acryloyl dimethyl taurate) copolymer (INCI name: Hydrox). yetyl Acrylate/Sodium Acryloyldimethyl (Hydroxyethyl acrylate/Na acryloyldimethyltaurate) copolymer is preferred from the viewpoint of a fresh and thick application feel.

As component A, a commercially available product can also be used. Examples of commercially available products include the product name "SIMULGEL NS" and the product name "SIMULGEL EG" (manufactured by SEPPIC SA).

The content of component A in the gel skin cosmetic is 0.2 to 1.2% by mass, preferably 0.3 to 0.8% by mass. If the content is less than 0.2% by mass, the thickening effect will be low, the gel will become too soft, and the thickness during application will be lost. If the content exceeds 1.2% by mass, the gel becomes too hard and loses its elasticity, making it impossible to obtain a fresh application feel. The content of component A is the total content of all components A in the gel-like skin cosmetic of the present invention.

<Component B>
Component B is an alkyl-modified carboxyvinyl polymer. Component B is a water-soluble polymer having emulsifying power, and has the effect of thickening the system to form a gel formulation and imparting a thick application feel.

Furthermore, by incorporating Component B in addition to Component A, the elasticity and hardness of the gel are controlled, resulting in a gel-like skin cosmetic that does not crumble easily and has a thick, elastic texture. It has been realized.

Component B includes (acrylates/alkyl acrylate (C10-30)) crosspolymer (INCI name: Acrylates/C10-30 Alkyl Acrylate Crosspolymer), (alkyl acrylate/steareth methacrylate-20) copolymer (INCI name: Acrylates) /Steareth-20 Methacrylate Copolymer).

As component B, a commercially available product can also be used. Commercially available products include, for example, the product name "PEMULEN TR-1", the product name "PEMULEN TR-2", the product name "CARBOPOL ETD 2020", the product name "CARBOPOL ULTREZ 20", and the product name "CARBOPOL ULTREZ 21". (manufactured by Japan Lubrizol Co., Ltd.).

The content of component B in the gel skin cosmetic is 0.03 to 0.4% by mass, preferably 0.05 to 0.3% by mass. If the content is less than 0.03% by mass, the thickening effect will be low and the gel will become too soft, resulting in loss of thickness during application. If the content exceeds 0.4% by mass, the gel becomes too hard, loses elasticity, and deteriorates the feel of application. The content of component B is the total content of all components B in the gel-like skin cosmetic of the present invention.

<Component C>
Component C is a pentaerythritol ester. Component C is a highly polar oil with water-holding properties, and exhibits the effect of imparting a thick application feel when the gel-like skin cosmetic of the present invention is applied to the skin. In addition, by forming a film on the applied skin, it provides a moisturizing feeling and a long-lasting moisturizing feeling, as well as a smooth texture and a long-lasting smooth texture.

Component C includes pentaerythrityl tetrabehenate/benzoate/ethylhexanoate (INCI name: Pentaerythrityl Tetrabehenate/Benzoate/Ethylhexanoate), pentaerythrityl tetra(ethylhexanoate/benzoate) (INCI name: Pen taerythrityl Tetraethylhexanoate /Benzoate), Dipentaerythrityl Tri-Polyhydroxystearate (INCI name: Dipentaerythrityl Tri-Polyhydroxystearate), Dipentaerythrityl hexa(hydroxystearic acid/stearic acid/rosin acid) (INCI name: Dipentaerythrityl yl Hexahydroxystearate/Hexastearate/Hexarosinate), Penta(Hydroxystearate/ Dipentaerythrityl isostearate (INCI name: Dipentaerythrityl Pentahydroxystearate/Pentaisostearate), Dipentaerythrityl hexahydroxystearate (INCI name: Dipentaerythrityl Hexahydrate) Pentaerythrityl Tetraethylhexanoate), Pentaerythrityl Tetraethylhexanoate (INCI name), Pentaerythrityl Tetraethylhexanoate (INCI name) : Pentaerythrityl Tetraisostearate), dipentaerythrityl tetra(hydroxystearate/isostearate) (INCI name: Dipentaerythrityl Tetrahydroxystearate/Tetraisostearate), etc. , Tetra (hydroxystearin) is preferable from the viewpoint of thick application feel and long-lasting moisturizing feeling. dipentaerythrityl acid/isostearate.

As component C, a commercially available product can be used. Commercially available products include, for example, the product name "SALACOS WO-6", the product name "COSMOL 168ARV", the product name "COSMOL 168EV", the product name "COSMOL 168M", and the product name "SALACOS 5408" (all of which are manufactured by Nisshin Oillio Group). Co., Ltd.), the product name "Crodamol PTIS" (manufactured by Croda Co., Ltd.), the product name "Hilucent 138DP", and the product name "KAK PTI" (manufactured by Kyukyu Alcohol Industries Co., Ltd.).

The content of component C in the gel skin cosmetic is 0.2 to 3.0% by mass, preferably 0.5 to 2.0% by mass. When the content is 0.2% by mass or more, a thick application feel, a moisturizing feeling, a long-lasting moisturizing feeling, a smooth texture, and a long-lasting smooth texture are excellent. If the content exceeds 3.0% by mass, the skin after application will feel sticky and tight, and the smooth texture will be impaired. The content of component C is the total content of all components C in the gel-like skin cosmetic of the present invention.

<Component D>
Component D is N-lauroyl-L-glutamic acid ester. Component D is a highly polar oil with water-holding properties, and exhibits the effect of imparting a fresh and thick application feel when the gel-like skin cosmetic of the present invention is applied to the skin. In addition, by forming a film on the applied skin, it provides a moisturizing feeling and a long-lasting moisturizing feeling, as well as a smooth texture and a long-lasting smooth texture. Furthermore, since it blends well with stratum corneum moisture, it blends well into the skin when applied to the skin.

Component D includes di(phytosteryl/octyldodecyl) N-lauroyl-L-glutamate (INCI name: Phytosteryl/Octyldodecyl Lauroyl Glutamate), di(octyldodecyl/phytosteryl/behenyl) N-lauroyl-L-glutamate (INCI name: Phytosteryl/Behenyl/Octyldodecyl Lauroyl Glutamate), N-lauroyl-L-glutamic acid di(cholesteryl/octyldodecyl) (INCI name: Cholesteryl/Octyldodecyl Lauroyl Gluta) mate), N-lauroyl-L-glutamic acid di(octyldodecyl/cholesteryl/behenyl) (INCI name: Cholesteryl/Behenyl/Octyldodecyl Lauroyl Glutamate), etc., and N-lauroyl-L-glutamic acid di(octyldodecyl/phytosteryl/behenyl) is preferred from the viewpoint of lasting moisturizing feeling and blending into the skin.

As component D, a commercially available product can be used. Commercially available products include, for example, the product name "ELDUU PS-203", the product name "ELDUU PS-304", the product name "ELDUU CL-202", the product name "ELDUU PS-306", and the product name "ELDUU PS-306R". ” and the product name “ELDUU CL-301” (manufactured by Ajinomoto Healthy Supply Co., Ltd.).

The content of component D in the gel skin cosmetic is 0.2 to 3.0% by mass, preferably 0.5 to 2.0% by mass. When the content is 0.2% by mass or more, the fresh and thick application feel, the moisturizing feeling, the sustainability of the moisturizing feeling, the smooth texture, and the sustainability of the smooth texture are excellent. When the content exceeds 3.0% by mass, the skin becomes sticky after application, and the fresh application feeling is impaired. The content of component D is the total content of all components D in the gel-like skin cosmetic of the present invention.

<Component E>
Component E is dimethylpolysiloxane having a kinematic viscosity of 30,000 to 100,000 mm ² /s at 25°C. Component E forms a film to cover the stickiness of the highly polar oils (components C and D) after applying the gel-like skin cosmetic of the present invention to the skin, thereby maintaining a smooth texture. Demonstrates the effect it imparts. Note that the kinematic viscosity of the dimethylpolysiloxane at 25°C is a value measured according to JIS K 2283.

The kinematic viscosity of component E at 25° C. is preferably 40,000 to 90,000 mm ² /s from the viewpoint of maintaining a smooth texture.

As component E, a commercially available product can also be used. Commercially available products include, for example, the product name "KF-96H-30,000 cs" (kinematic viscosity at 25°C: 30,000 mm ² /s) and the product name "KF-96H-50,000 cs" (kinematic viscosity at 25°C: 30,000 mm 2 /s). : 50,000mm ² /s), product name "KF-96H-60,000cs" (kinematic viscosity at 25℃: 60,000mm ² /s), product name "KF-96H-100,000cs" (kinematic viscosity at 25℃: 60,000cs) Kinematic viscosity: 100,000 mm ² /s) (manufactured by Shin-Etsu Chemical Co., Ltd.); Product name: "SH200 FLUID 30,000CS" (Kinematic viscosity at 25°C: 30,000 mm ² /s), "SH200 FLUID 60, 000CS” (kinematic viscosity at 25°C: 60,000 mm ² /s), “SH200 FLUID 100,000CS” (kinematic viscosity at 25°C: 100,000 mm ² /s) (manufactured by Toray Dow Corning Co., Ltd.), etc. can be mentioned.

The content of component E in the gel skin cosmetic is 0.01 to 0.7% by mass, preferably 0.03 to 0.5% by mass. When the content is 0.01% by mass or more, stickiness is reduced and the effect of imparting smooth texture is excellent in sustainability. If the content exceeds 0.7% by mass, the skin will feel tight after application, which is not preferable. In addition, the application feels heavy, making it difficult to obtain a feeling of penetration. The content of component E is the total content of all components E in the gel-like skin cosmetic of the present invention.

<Component F>
Component F is a nonionic surfactant. Component F exhibits an effect as an emulsifier for forming an oil-in-water emulsion system, and improves emulsion stability. Component F is preferably a fatty acid ester type nonionic surfactant.

Examples of fatty acid ester type nonionic surfactants include monoglycerin fatty acid ester, polyglycerin fatty acid ester, sorbitan fatty acid ester, polyoxyethylene fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene sorbitan fatty acid ester, etc. Monoglycerin fatty acid ester is preferred because it provides a thicker application feel.

The monoglycerin fatty acid ester is not particularly limited, but includes, for example, glyceryl monocaprylate, glyceryl monocaprate, glyceryl monolaurate, glyceryl monomyristate, glyceryl monopalmitate, glyceryl monostearate, glyceryl distearate, and monoisostearin. Examples include glyceryl acid, glyceryl diisostearate, glyceryl monohydroxystearate, glyceryl monooleate, glyceryl monobehenate, glyceryl dibehenate, and the like.

The polyglycerol fatty acid ester is not particularly limited, but includes, for example, diglyceryl monostearate, diglyceryl monooleate, diglyceryl monoisostearate, tetraglyceryl monostearate, tetraglyceryl monooleate, hexaglyceryl monolaurate, Polyglycerin fatty acid monoesters such as hexaglyceryl monomyristate, hexaglyceryl monostearate, hexaglyceryl monooleate, decaglyceryl monolaurate, decaglyceryl monomyristate, decaglyceryl monostearate, decaglyceryl monooleate; dioleic acid Polyglycerol fatty acid diesters such as diglyceryl, decaglyceryl distearate, and decaglyceryl diisostearate; Polyglycerol fatty acid triesters such as tetraglyceryl tristearate, hexaglyceryl tristearate, decaglyceryl tristearate, and decaglyceryl trioleate; Examples include polyglycerol fatty acid pentaesters such as tetraglyceryl pentastearate, tetraglyceryl pentaoleate, hexaglyceryl pentastearate, and hexaglyceryl pentaoleate.

The average degree of polymerization of polyglycerin in the polyglycerin fatty acid ester is preferably 2 to 10 from the viewpoint of improving emulsion stability.

The fatty acid in the polyglycerin fatty acid ester is preferably a fatty acid having 8 to 24 carbon atoms, more preferably a fatty acid having 10 to 20 carbon atoms, and even more preferably a fatty acid having 12 to 18 carbon atoms. It is a fatty acid.

The sorbitan fatty acid ester is not particularly limited, but includes, for example, sorbitan monocaprate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan distearate, sorbitan sesquistearate, sorbitan tristearate, and trioleic acid. Examples include sorbitan, sorbitan monoisostearate, sorbitan sesquiisostearate, sorbitan monooleate, sorbitan sesquioleate, and coconut oil fatty acid sorbitan.

The polyoxyethylene fatty acid ester is not particularly limited, but includes, for example, polyethylene glycol monolaurate, polyethylene glycol monopalmitate, polyethylene glycol monostearate, polyethylene glycol monoisostearate, polyethylene glycol distearate, polyethylene glycol monooleate, Examples include polyethylene glycol dioleate.

The polyoxyethylene glycerin fatty acid ester is not particularly limited, but includes, for example, polyoxyethylene (caprylic/capric acid) glyceryl, polyoxyethylene coconut oil fatty acid glycerin, polyoxyethylene glyceryl monooleate, and polyoxyethylene monomyristate. Examples include glyceryl, polyoxyethylene glyceryl monostearate, polyoxyethylene glyceryl monoisostearate, polyoxyethylene glyceryl triisostearate, and the like. The number of moles of ethylene oxide added is not particularly limited, but from the viewpoint of improving emulsion stability, it is preferably 2 to 100, more preferably 4 to 90.

The polyoxyethylene sorbitan fatty acid ester is not particularly limited, but includes, for example, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan oleate, and trioleic acid. Examples include polyoxyethylene sorbitan. The number of moles of ethylene oxide added is not particularly limited, but from the viewpoint of improving emulsion stability, it is preferably from 5 to 50, more preferably from 10 to 30.

The content of component F is not particularly limited, but is preferably 0.5 to 4.0% by mass, more preferably 0.7 to 3.5% by mass in the gel skin cosmetic. When the content is 0.5% by mass or more, emulsion stability is even more excellent. When the content is 4.0% by mass or less, stickiness and sliminess after application can be further suppressed. The content of component F is the total content of all components F in the gel-like skin cosmetic of the present invention.

<Component G>
Component G is water. Component G acts as a medium for forming an oil-in-water emulsion system. The water is not particularly limited, but purified water is preferred.

The content of component G is not particularly limited, but is preferably 40.0 to 90.0% by mass, more preferably 50.0 to 80.0% by mass in the gel skin cosmetic.

<Other ingredients>
The gel-like skin cosmetic of the present invention may contain components other than components A to G (other components) as long as the effects of the present invention are not impaired. Other components include, but are not particularly limited to, polyhydric alcohols, higher alcohols, water-soluble polymers other than components A and B, surfactants other than component F, lower alcohols, hydrocarbon oils, and chains other than component E. Shape silicone, cyclic silicone, vitamins, antioxidants, preservatives, ultraviolet absorbers, inorganic pigments, pearlizing agents, plant extracts, fragrances, pH adjusters, and the like can be blended as appropriate depending on the purpose.

Examples of the polyhydric alcohol include ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, isoprene glycol, 1,3-butylene glycol, 1,2-butanediol, 1, Glycols such as 2-pentanediol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol; Glycerin such as glycerin, diglycerin, polyglycerin; xylitol, trehalose, maltitol, mannitol and sugar alcohols such as sorbitol, erythritol, arabitol, ribitol, galactitol, glucitol, and erythritol. By containing polyhydric alcohol, the moisturizing feeling can be further improved.

The content when containing polyhydric alcohol is not particularly limited, but is preferably 0.1 to 35.0% by mass, more preferably 1.0 to 25.0% by mass in the gel skin cosmetic. . When the content is 0.1% by mass or more, the moisturizing effect is further improved. When the content is 35.0% by mass or less, stickiness after application can be further suppressed.

The higher alcohol is preferably an aliphatic alcohol having 12 to 24 carbon atoms, more preferably an aliphatic alcohol having 14 to 22 carbon atoms, from the viewpoint of providing a thicker application feel.

Examples of such higher alcohols include, but are not limited to, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, cetostearyl alcohol, isostearyl alcohol, 2-octyldodecanol, oleyl alcohol, behenyl alcohol, batyl alcohol, etc. .

The content of the higher alcohol is not particularly limited, but is preferably 0.1 to 1.0% by mass, more preferably 0.1 to 0.6% by mass in the gel skin cosmetic. When the content is 0.1% by mass or more, a thicker application feel can be provided. When the content is 1.0% by mass or less, stickiness after application can be further suppressed.

<Manufacturing method and use of gel-like skin cosmetics>
The method for producing the gel-like skin cosmetic of the present invention is not particularly limited, and can be produced by any known method. Examples of the method for producing the gel-like skin cosmetic include a method in which the above-mentioned components are added and mixed using a known mixing device such as a disperser mixer or a paddle mixer. However, the present invention is not limited to the above-described manufacturing method. Moreover, the gel-like skin cosmetic of the present invention is preferably filled into a container that can be easily taken out, such as a dispenser container, a tube container, or a wide-mouthed jar container.

The gel-like skin cosmetic of the present invention is a skin cosmetic that is used on the skin. Among these, it is preferably used in so-called all-in-one type cosmetics that are used alone as cosmetics that have the functions of gels, lotions, serums, milky lotions, creams, and the like.

The areas to which the gel skin cosmetic of the present invention is applied are not particularly limited, and include, for example, the face (forehead, around the eyes, the corners of the eyes, cheeks, mouth, etc.), the body (arms, elbows, backs of hands, fingertips, feet, knees, etc.), (heels, neck, armpits, back, etc.). Among these, the face is particularly preferred. The gel-like skin cosmetic of the present invention is preferably a gel-like skin cosmetic for the face.

The gel-like skin cosmetic of the present invention is an oil-in-water (o/w) type containing water (component G), water-soluble polymers (components A and B), and a nonionic surfactant (component F) as essential components. It is a gel-like skin cosmetic. Therefore, it has a fresh and thick application feel, and also has excellent penetration and moisture replenishment ability.
In the present invention, in the oil-in-water type gel-like skin cosmetic, by using a specific amount of component C and component D, both of which are highly polar oils, while maintaining a fresh and thick application feel, moisturizing feeling and It exhibits a long-lasting moisturizing feeling, a smooth texture, and a long-lasting smooth texture.
Furthermore, by blending a specific amount of dimethylpolysiloxane (component E) with a kinematic viscosity of 30,000 to 100,000 mm ² /s at 25°C, the stickiness of the highly polar oils (components C and D) can be covered. It forms a film on the skin, giving it a lasting smooth texture.
The gel-like skin cosmetic of the present invention is characterized by excellent long-lasting moisturizing feeling and long-lasting smooth texture, while having the fresh and thick application feel of gel.

The present invention will be explained in more detail below based on Examples, but the present invention is not limited only to these Examples. The blending amounts listed in the table are the blending amounts of each component (that is, the blending amounts of the active ingredients in each raw material), and are expressed in "% by mass" unless otherwise specified. In addition, "-" in the blending amount in the table indicates that the component is not blended.

<Examples, comparative examples>
Preparation of each sample Gel-like skin cosmetics of Examples and Comparative Examples were prepared according to the compositions listed in each table by a conventional method and subjected to the following evaluation test. The evaluation results are also listed in the table.

Details of the main components listed in the table are as follows.
<Component A>
(Hydroxyethyl acrylate/Na acryloyldimethyltaurine) copolymer: Trade name "SIMULGEL NS", manufactured by SEPPIC SA (Na acrylate/Na acryloyldimethyltaurine) copolymer: Trade name "SIMULGEL EG", manufactured by SEPPIC SA <Component B ＞
(Alkyl acrylate/steareth methacrylate-20) copolymer: Product name "Acculin 22", manufactured by Dow Chemical Co., Ltd. (Acrylates/alkyl acrylate (C10-30)) crosspolymer: Product name "PEMULEN TR-1", Japan Lubricant Co., Ltd. Manufactured by Sol Co., Ltd. <Component C>
Tetra(hydroxystearic acid/isostearic acid) dipentaerythrityl: Trade name "Cosmol 168M", Nisshin Oillio Group Co., Ltd. Hexa(hydroxystearic acid/stearic acid/rosin acid) dipentaerythrityl: Product name "Cosmol 168EV", Nisshin Oillio Group Manufactured by Co., Ltd. <Component D>
N-Lauroyl-L-glutamic acid di(octyldodecyl/phytosteryl/behenyl) copolymer: Product name "ELDUU PS-306R", manufactured by Ajinomoto Healthy Supply Co., Inc. N-Lauroyl-L-glutamic acid di(phytosteryl/octyldodecyl) copolymer: Product name “Eldu PS-203”, manufactured by Ajinomoto Healthy Supply Co., Ltd. <Ingredient E>
Dimethylpolysiloxane 1: Trade name "SH200 FLUID 60,000CS" (kinematic viscosity at 25°C: 60,000 mm ² /s), manufactured by Dow Corning Toray Co., Ltd. <Component F>
Glyceryl stearate: Product name "CUTINA GMS-V", lipophilic fatty acid monoglyceryl, manufactured by BASF Polyglyceryl stearate-10: Product name "NIKKOL Decaglyn 1-SV", manufactured by Nikko Chemicals Co., Ltd. <Other ingredients>
Dimethylpolysiloxane 2: Product name "KF-96H-12,5000 cs" (Kinematic viscosity at 25°C: 12,500 mm ² /s), manufactured by Shin-Etsu Chemical Co., Ltd. Dimethylpolysiloxane 3: Product name "KF -96H-300,000 cs", (Kinematic viscosity at 25°C: 300,000 mm ² /s), Shin-Etsu Chemical Co., Ltd. Dimethylpolysiloxane 4: Product name "SH200 FLUID 10CS", (Kinematic viscosity at 25°C: 10 mm ² /s), manufactured by Dow Corning Toray Co., Ltd. Behenyl alcohol: Product name: "Behenyl Alcohol 2265", manufactured by Shin Nippon Chemical Co., Ltd. Glycerin: Product name: "Concentrated glycerin for cosmetics", manufactured by Sakamoto Pharmaceutical Co., Ltd. Dipropylene glycol: Product name "Dipropylene Glycol S", manufactured by Shell Chemicals Japan Co., Ltd. Polyethylene glycol: Product name "Brownon PEG-20000S", manufactured by Aoki Yushi Kogyo Co., Ltd. Glyceryl tri-2-ethylhexanoate: Product name "Exepearl TGO", manufactured by Kao Shiki Co., Ltd. Trimethylglycine: Product name “Aminocoat”, manufactured by Asahi Kasei Chemicals Co., Ltd. Squalane: Product name “NIKKOL Sugar Squalane”, manufactured by Nippon Surfactant Industries Co., Ltd.

<Evaluation method>
Three expert evaluators conducted the evaluation. The results were determined by combining the evaluations of each evaluator.
The gel-like skin cosmetics of each Example and Comparative Example were applied to the inner side of the forearm and blended by stroking the applied area back and forth with the hand. Based on the coating feel immediately after the start of coating, "thick coating feel" was sensory evaluated using the following evaluation criteria. Immediately after the application, the ``moisturizing feeling'' and ``smooth texture'' of the applied area were sensory evaluated using the following evaluation criteria. Further, 8 hours after the completion of application, the "persistence of moisturizing feeling" and "persistence of smooth texture" of the applied area were sensory evaluated using the following evaluation criteria.

Thick application feel ◎ (excellent): Even after applying shear, a sufficiently thick layer of the cosmetic material can be felt between the hand and the skin, and it feels like touching the surface of the cosmetic layer.
○ (Good): Even after shearing, a layer of cosmetics is clearly felt between the hand and the skin, and it feels like touching the skin indirectly.
△ (usable): Even after shearing, a layer of cosmetics can be felt between the hands and the skin, but some parts feel as if they are directly touching the skin.
× (Poor): All the layers of the cosmetic were removed by shearing, and it felt as if it was in direct contact with the skin.

Fresh application feel ◎ (excellent): There is a clear feeling that water is being supplied to the skin, and a sufficient freshness can be felt.
○ (Good): There is a feeling that water is being supplied to the skin, and a clear freshness is felt.
△ (usable): There is a slight feeling that water is being supplied to the skin, and the skin feels fresh.
× (Poor): There was no feeling of water being supplied to the skin, and no freshness was felt.

Moisturizing feeling (immediately after application)
◎ (Excellent): The skin feels sufficiently moist.
○ (Good): The skin clearly feels moisturized.
△ (usable): The skin feels slightly moist.
× (Poor): The skin does not feel moist.

Smooth texture (immediately after application)
◎ (Excellent): The unevenness of the skin is clearly reduced and the skin feels slightly smoother than before application.
○ (Good): The unevenness of the skin is reduced and the skin feels slightly smoother than before application.
△ (usable): The unevenness of the skin has decreased and the skin can barely be felt to be smoother than before application.
× (Poor): The unevenness of the skin is reduced and the skin does not feel smoother than before application.

Persistence of moisturizing feeling ◎ (excellent): It feels as moist as immediately after application.
○ (Good): Slightly inferior to that immediately after application, but feels moist.
△ (usable): Although it is considerably inferior to that immediately after application, it feels moist.
× (Poor): The skin does not feel moist.

Sustainability of smooth texture ◎ (excellent): The same smooth texture can be felt immediately after application.
○ (Good): Slightly inferior to that immediately after application, but a smooth texture can be felt.
△ (usable): Smooth texture can be felt, although it is considerably inferior to that immediately after application.
× (Poor): The unevenness of the skin is reduced and the skin does not feel smooth.

Furthermore, formulation examples of the gel-like skin cosmetics of the present invention are shown below.

(Formulation example 1: gel moisturizer)
Hexa(hydroxystearic acid/stearic acid/rosin acid) dipentaerythrityl
0.5% by mass
Tetra(hydroxystearate/isostearate) dipentaerythrityl
1.2% by mass
N-lauroyl-L-glutamic acid di(octyldodecyl/phytosteryl/behenyl)
0.8% by mass
Dimethylpolysiloxane (kinematic viscosity at 25°C 60,000 mm ² /s) 0.15% by mass
Dimethylpolysiloxane (kinematic viscosity 10 mm ² /s at 25°C) 2.0% by mass
(Sodium acrylate/Sodium acryloyldimethyltaurine) copolymer
0.8% by mass
(Acrylates/alkyl acrylate (C10-30)) crosspolymer
0.06% by mass
Polysorbate 80 0.3% by mass
Glyceryl stearate 0.2% by mass
Polyglyceryl-10 stearate 1.1% by mass
Glyceryl behenate 0.2% by mass
Behenyl alcohol 0.5% by mass
Ethylhexyl palmitate 3.0% by mass
Isohexadecane 2.0% by mass
Glycerin 8.0% by mass
Dipropylene glycol 15.0% by mass
Trimethylglycine 3.0% by mass
Ethanol 4.0% by mass
Phenoxyethanol 0.2% by mass
Fragrance 0.1% by mass
Potassium hydroxide Appropriate amount Water Remaining total 100.0% by mass

(Formulation example 2: gel moisturizer)
Tetra(hydroxystearate/isostearate) dipentaerythrityl
0.8% by mass
Dipentaerythrityl hexahydroxystearate 0.5% by mass
N-lauroyl-L-glutamic acid di(octyldodecyl/phytosteryl/behenyl)
0.6% by mass
(Hydroxyethyl acrylate/acryloyldimethyltaurine Na) copolymer
0.35% by mass
(Alkyl acrylate/steareth methacrylate-20) copolymer
0.1% by mass
Carbomer 0.05% by mass
Dimethylpolysiloxane (kinematic viscosity at 25°C 30,000 mm ² /s) 0.2% by mass
Polysorbate 60 0.2% by mass
Polyglyceryl-10 stearate 1.3% by mass
Sorbitan isostearate 0.2% by mass
Glyceryl behenate 0.6% by mass
Behenyl alcohol 0.2% by mass
Squalane 5.0% by mass
(C13-15) Alkane 2.0% by mass
Glycerin 13.0% by mass
Dipropylene glycol 5.0% by mass
Polyethylene glycol 1500 1.0% by mass
Inosit 2.0% by mass
Ethanol 2.0% by mass
Phenoxyethanol 0.1% by mass
Oxytoxyglycerin 0.05% by mass
l-menthol 0.05% by mass
Fragrance 0.1% by mass
Potassium hydroxide Appropriate amount Water Remaining total 100.0% by mass

Claims (2)

Contains the following component A, component B, component C, component D, component E, component F, and component G,
The content of component A is 0.2 to 1.2% by mass,
The content of component B is 0.03 to 0.4% by mass,
The content of component C is 0.2 to 3.0% by mass,
The content of component D is 0.2 to 3.0% by mass,
A gel-like skin cosmetic having a content of component E of 0.01 to 0.7% by mass.
Component A: Polymer containing structural units derived from acryloyl dimethyl taurate Component B: Alkyl-modified carboxyvinyl polymer Component C: Pentaerythritol ester component D: N-lauroyl-L-glutamic acid ester Component E: Kinematic viscosity at 25°C 30,000 to 100,000 mm ² /s dimethylpolysiloxane component F: nonionic surfactant component G: water Component F is at least one nonion selected from the group consisting of monoglycerin fatty acid ester, polyglycerin fatty acid ester, sorbitan fatty acid ester, polyoxyethylene fatty acid ester, polyoxyethylene glycerin fatty acid ester, and polyoxyethylene sorbitan fatty acid ester The gel-like skin cosmetic according to claim 1, which is a surfactant.