Skin cosmetics

Abstract

To provide a skin cosmetic which is excellent in comfort when applied, gives a plump feeling after application, and maintains a smooth and plump skin condition even after wearing a mask. [Solution] The present invention provides a skin cosmetic that does not contain a dihydric alcohol having 6 or more carbon atoms and phenoxyethanol, and is characterized by containing (A) 1 to 20 mass% of 1,3-propanediol, (B) 0.5 to 4 mass% of 1,2-pentanediol, (C) 0.01 to 0.5 mass% of glycerin mono 2-ethylhexyl ether, and (D) 0.00001 to 0.001 mass% of ceramide.

Description

[Technical Field]

[0001] The present invention relates to a skin cosmetic used for moisturizing the skin of the face, body, etc. [Background technology]

[0002] Skin cosmetics containing a variety of moisturizing agents are formulated to keep the skin moist. However, skin cosmetics containing a high amount of moisturizing agent can cause stickiness. Stickiness reduces the comfort of application, so there is a need to reduce stickiness.

[0003] Preservatives such as parabens and phenoxyethanol are added to skin care products to enhance their shelf life, but these preservatives can cause irritation during application. Dihydric alcohols with six or more carbon atoms are also added to skin care products to enhance their preservative properties, but they can also cause irritation. Irritation during application can reduce the comfort of the product.

[0004] In recent years, the number of consumers who consider their skin to be sensitive has been increasing, and cosmetics for sensitive skin targeted at such consumers are being required to be free of ingredients that cause irritation. For this reason, Patent Document 1 discloses a hypoallergenic cosmetic that contains at least three preservatives excluding phenoxyethanol, parahydroxybenzoic acid esters, and 1,2-hexanediol.

[0005] On the other hand, firm skin reduces the appearance of wrinkles and sagging, giving a youthful appearance. Ceramide is a major component of intercellular lipids in the skin, plays a major role in the barrier function, and is suitable as a component that gives skin a plump feel. Patent Document 2 discloses that a cosmetic preparation containing N-acyl-phytosphingosine and 1,2-pentanediol plumps the skin. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2023-102152 [Patent Document 2] Special Publication No. 2014-532675 Summary of the Invention [Problem to be solved by the invention]

[0007] However, because ceramides are highly crystalline and have poor compatibility with both water and oil, an increase in the amount of solvent used to incorporate ceramides can cause stickiness, and precipitation of ceramides can cause roughness. Because stickiness and roughness can reduce the comfort of application, it has not been easy to achieve both comfort upon application and a plump feeling after application in cosmetics containing ceramides.

[0008] Furthermore, in recent years, opportunities to wear masks have increased. However, when wearing a mask, friction between the skin and the mask reduces the skin's barrier function, causing dryness, and wearing a mask increases sebum secretion, causing stickiness. Therefore, there is a need for skin cosmetics that maintain a smooth and plump skin condition even after wearing a mask.

[0009] As described above, a skin cosmetic that is comfortable to apply, leaves skin feeling plump after application, and maintains a smooth and plump skin condition even after wearing a mask has not yet been developed.

[0010] The object of the present invention is to provide a skin cosmetic that is comfortable to apply, gives a plump feeling after application, and maintains a smooth and plump skin condition even after wearing a mask. [Means for solving the problem]

[0011] In order to solve the above problems, the present inventors conducted extensive research and discovered that by adding predetermined amounts of glycerin mono 2-ethylhexyl ether and ceramide to a cosmetic product containing predetermined amounts of 1,3-propanediol and 1,2-pentanediol, the product is comfortable to apply, leaves skin feeling plump after application, and maintains a smooth and plump skin condition even after wearing a mask, thereby completing the present invention.

[0012] That is, the present invention relates to the following [1], [2] and [3]. [1] (A) 1 to 20 mass% of 1,3-propanediol, (B) 0.5 to 4 mass% of 1,2-pentanediol, (C) 0.01 to 0.5% by mass of glycerin mono 2-ethylhexyl ether, and (D) 0.00001 to 0.001% by mass of ceramide A skin cosmetic composition which does not contain a dihydric alcohol having 6 or more carbon atoms and phenoxyethanol, characterized by containing the above. [2] The skin cosmetic according to [1], characterized in that it contains 0.1 to 10 mass % of (E) one or more components selected from the group consisting of ascorbic acid 2-glucoside, tranexamic acid, and nicotinamide. [3] The skin cosmetic according to [1] or [2], characterized in that it contains 0.0001 to 0.2 mass % of (F) a polymer having a structural unit derived from 2-methacryloyloxyethyl phosphorylcholine. [Effects of the Invention]

[0013] According to the present invention, it is possible to provide a skin cosmetic that is comfortable to apply, leaves skin feeling plump after application, and maintains a smooth and plump skin condition even after wearing a mask. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, an embodiment of the present invention will be described. In this specification, numerical ranges defined using the symbol "to" are inclusive of the numerical values ​​at both ends (upper and lower limits) of the symbol "to." For example, "2 to 5" means 2 or more and 5 or less.

[0015] The present invention relates to a skin cosmetic containing the above-mentioned components in specific proportions (hereinafter also referred to as the skin cosmetic of the present invention). In the present invention, "skin cosmetics" refer to cosmetics that are applied by direct or indirect application or spraying onto the skin, and specific examples include skin care cosmetics such as lotions, emulsions, and creams, as well as medicated cosmetics (quasi-drugs).

[0016] The skin cosmetic of the present invention relates to a hypoallergenic skin cosmetic that does not contain phenoxyethanol as a preservative and does not contain a dihydric alcohol having 6 or more carbon atoms as a moisturizer. Skin cosmetic preparations that contain phenoxyethanol or a dihydric alcohol having 6 or more carbon atoms are irritating and less comfortable to apply. More preferably, the skin cosmetic is a paraben-free hypoallergenic skin cosmetic that does not contain a parahydroxybenzoate ester as a preservative.

[0017] <(A): 1,3-propanediol> The content of 1,3-propanediol is 1 to 20% by mass of the total skin cosmetic. If the content of 1,3-propanediol is less than 1% by mass, the comfort upon application may be insufficient, the plumpness after application may be reduced, or the smooth and plump skin state may not be maintained after wearing a mask. Therefore, the content is 1% by mass or more, preferably 2% by mass or more, and more preferably 3% by mass or more. Furthermore, if the content of 1,3-propanediol exceeds 20% by mass, the comfort upon application may be insufficient. Therefore, the content is 20% by mass or less, preferably 18% by mass or less, and more preferably 16% by mass or less.

[0018] <(B): 1,2-pentanediol> The content of 1,2-pentanediol is 0.5 to 4% by mass relative to the total amount of the skin cosmetic. If the content of 1,2-pentanediol is less than 0.5% by mass, the skin may feel unsatisfactory upon application, the plumpness after application may be reduced, or the skin may not maintain a smooth and plump state after wearing a mask. Therefore, the content is set to 0.5% by mass or more, preferably 1% by mass or more, and more preferably 1.5% by mass or more. Furthermore, if the content of 1,2-pentanediol exceeds 4% by mass, the skin may feel unsatisfactory upon application or the skin may not maintain a smooth and plump state after wearing a mask. Therefore, the content is set to 4% by mass or less, preferably 3.5% by mass or less, and more preferably 3% by mass or less.

[0019] <(C): Glycerin mono 2-ethylhexyl ether> The content of glycerin mono-2-ethylhexyl ether is 0.01 to 0.5% by mass relative to the total amount of the skin cosmetic. If the content of glycerin mono-2-ethylhexyl ether is less than 0.01% by mass, the skin may not feel comfortable upon application or may not maintain a smooth, plump state after wearing a mask. Therefore, the content is set to 0.01% by mass or more, preferably 0.03% by mass or more, and more preferably 0.05% by mass or more. Furthermore, if the content of glycerin mono-2-ethylhexyl ether exceeds 0.5% by mass, the skin may not feel comfortable upon application or may not maintain a smooth, plump state after wearing a mask. Therefore, the content is set to 0.5% by mass or less, preferably 0.45% by mass or less, and more preferably 0.4% by mass or less.

[0020] <(D): Ceramide> Component (D) used in the present invention is a ceramide, and although there are no limitations as long as it can be used in ordinary cosmetics, it can be defined as follows: That is, ceramides are a series of compounds that can be described as nonionic amphiphilic substances, having one or more long-chain linear and / or branched alkyl groups or long-chain linear and / or branched alkenyl groups in the molecule, and further having at least two hydroxyl groups and one or more amide and / or amino groups.

[0021] (D) Ceramides may be natural extracts or synthetic products, including, for example, ceramides derived from natural products (e.g., animal-derived ceramides, plant-derived ceramides, and microbial-derived ceramides) and ceramides produced by synthetic methods. Specific examples of ceramides include ceramide 1, ceramide 2, ceramide 3, ceramide 3B, ceramide 4, ceramide 5, ceramide 6, ceramide 6I, and ceramide 6II. These are classified as natural ceramides. The number following the ceramide indicates the type of ceramide. Examples of ceramides include ceramide NP, ceramide NG, and ceramide NS. The alphabetic designation following the ceramide indicates the combination of a fatty acid and a sphingoid. As mentioned above, ceramides are classified according to function or origin (e.g., ceramide 2) or structure (e.g., ceramide NS), and although some components may be overlapping among the multiple notations, the ceramides used in the present invention are not limited by these notations.

[0022] In addition, the ceramide may be in the form of a mixture of isomers of each ceramide in any mixing ratio, or may be in the form of a specific isomer. These ceramides may be used alone or in combination of two or more of the specific examples. In the present invention, among the ceramides, ceramide AP, ceramide EOP, ceramide NP, or ceramide NG is preferred, ceramide NP or ceramide NG is more preferred, and ceramide NP is particularly preferred.

[0023] The content of (D) ceramide is 0.00001 to 0.001% by mass relative to the total amount of the skin cosmetic. If the ceramide content is less than 0.00001% by mass, the plumpness after application may be reduced or the smooth, plump skin state may not be maintained after wearing a mask. Therefore, the content is set to 0.00001% by mass or more, preferably 0.00003% by mass or more, and more preferably 0.00005% by mass or more. Furthermore, if the ceramide content exceeds 0.001% by mass, the comfort upon application may be insufficient. Therefore, the content is set to 0.001% by mass or less, preferably 0.0008% by mass or less, and more preferably 0.0005% by mass or less.

[0024] From the viewpoint of improving the comfort during application and the plump feeling after application, the mass ratio ((B) / (D)) of the content of (D) ceramide to the content of (B) 1,2-pentanediol is preferably 2,000 to 100,000, more preferably 5,000 to 50,000, and particularly preferably 15,000 to 30,000.

[0025] From the viewpoint of maintaining a smooth and plump skin condition after wearing the mask, the mass ratio ((C) / (D)) of the content of (D) ceramide to the content of (C) glycerin mono 2-ethylhexyl ether is preferably 100 to 10,000, more preferably 500 to 6,000, and particularly preferably 1,000 to 4,000.

[0026] <(E): one or more ingredients selected from ascorbic acid 2-glucoside, tranexamic acid, and nicotinamide> The component (E) used in the present invention is one or more components selected from ascorbic acid 2-glucoside, tranexamic acid, and nicotinamide, and preferably nicotinamide.

[0027] The content of component (E) is preferably 0.1 to 10% by mass, more preferably 0.5 to 8% by mass, and even more preferably 0.8 to 6% by mass, based on the total amount of the skin cosmetic. When the content of component (E) is within this range, the effect of providing a plump feeling after application and maintaining a smooth, plump skin condition after wearing the mask is further improved.

[0028] <(F): Polymer Having a Structural Unit Derived from 2-Methacryloyloxyethyl Phosphorylcholine> The component (F) used in the present invention is a polymer having structural units derived from 2-methacryloyloxyethyl phosphorylcholine.

[0029] (F) The polymer having a structural unit derived from 2-methacryloyloxyethyl phosphorylcholine may be a homopolymer, or may be a copolymer containing a structural unit other than the structural unit derived from 2-methacryloyloxyethyl phosphorylcholine, as long as the effects of the present invention are not impaired.

[0030] Examples of monomers constituting the other structural units include polymerizable monomers selected from linear or branched alkyl (meth)acrylates, aromatic group-containing (meth)acrylates, hydroxyl group-containing (meth)acrylates, vinyl ester monomers, acid group-containing monomers, amino group-containing monomers, and cationic group-containing monomers.

[0031] Examples of the linear or branched alkyl(meth)acrylate include methyl(meth)acrylate, ethyl(meth)acrylate, propyl(meth)acrylate, and butyl(meth)acrylate.

[0032] Examples of aromatic group-containing (meth)acrylates include benzyl (meth)acrylate and phenoxyethyl (meth)acrylate.

[0033] Examples of hydroxyl group-containing (meth)acrylates include polyethylene glycol (meth)acrylate, polypropylene glycol (meth)acrylate, 2-hydroxyethyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, and 4-hydroxybutyl (meth)acrylate. Examples of vinyl ester monomers include vinyl acetate and vinyl propionate.

[0034] Examples of the acid group-containing monomer include (meth)acrylic acid, styrenesulfonic acid, and (meth)acryloyloxyethylphosphonic acid.

[0035] Examples of the amino group-containing monomer include aminoethyl (meth)acrylate, dimethylaminoethyl (meth)acrylate, and N,N-dimethylaminopropyl (meth)acrylamide. Examples of the cationic group-containing monomer include 2-hydroxy-3-(meth)acryloyloxypropyltrimethylammonium chloride.

[0036] (F) When the polymer having a structural unit derived from 2-methacryloyloxyethyl phosphorylcholine also contains the other structural units, the molar ratio of the structural unit (a) derived from 2-methacryloyloxyethyl phosphorylcholine to the other structural unit (b) [(a):(b)] is preferably 1:0.1 to 1:10, more preferably 1:0.2 to 1:5.

[0037] As the monomer constituting the other structural units, a linear or branched alkyl (meth)acrylate or a hydroxyl group-containing (meth)acrylate is preferred, a linear or branched alkyl (meth)acrylate is more preferred, butyl (meth)acrylate is even more preferred, and butyl methacrylate (butyl methacrylate) is even more preferred.

[0038] (F) A polymer having a structural unit derived from 2-methacryloyloxyethyl phosphorylcholine can be obtained by polymerizing a monomer composition containing at least 2-methacryloyloxyethyl phosphorylcholine. The monomer composition may also contain the above-described monomers constituting the other structural units as needed.

[0039] Component (F), in which the monomer constituting the other structural units is butyl methacrylate, can be obtained by copolymerizing 2-methacryloyloxyethyl phosphorylcholine and butyl methacrylate (butyl methacrylate).

[0040] An example of a commercially available polymer having 2-methacryloyloxyethyl phosphorylcholine and butyl methacrylate as constituent monomers is the product name "LIPIDURE-PMB" (manufactured by NOF Corporation, 80 mol% 2-methacryloyloxyethyl phosphorylcholine, 20 mol% butyl methacrylate, weight average molecular weight: 600,000).

[0041] The weight-average molecular weight of the (F) polymer having a structural unit derived from 2-methacryloyloxyethyl phosphorylcholine is preferably 5,000 to 2,000,000, more preferably 100,000 to 1,000,000, even more preferably 200,000 to 800,000, and still more preferably 300,000 to 700,000. The weight-average molecular weight can be measured by gel permeation chromatography based on the measurements described in the Examples.

[0042] The content of the (F) polymer having constitutional units derived from 2-methacryloyloxyethyl phosphorylcholine is preferably 0.0001 to 0.2% by mass, more preferably 0.0005 to 0.15% by mass, and even more preferably 0.001 to 0.1% by mass, based on the total amount of the skin cosmetic. When the content of the (F) polymer having constitutional units derived from 2-methacryloyloxyethyl phosphorylcholine is within this range, the comfort upon application and the effect of maintaining a smooth and plump skin condition after wearing the mask are further improved.

[0043] The water content in the skin cosmetic of the present invention is preferably 45 to 97% by mass, more preferably 50 to 95% by mass, and particularly preferably 55 to 93% by mass. In addition to ion-exchanged water and distilled water, natural water containing minerals, aromatic perfumes such as rose water, and fermented liquids such as rice bran fermented liquid obtained by fermenting rice bran as a substrate with yeast can also be used as water.

[0044] <Other added ingredients> In addition to the above-mentioned components and water, the skin cosmetic of the present invention may further contain other additive components that are commonly used in cosmetics.

[0045] Examples of other additive components include moisturizers (moisturizers excluding (A) 1,3-propanediol, (B) 1,2-pentanediol, and dihydric alcohols having 6 or more carbon atoms); oils; surfactants; preservatives (preservatives excluding phenoxyethanol); thickeners; pH adjusters; antioxidants; sequestering agents; fragrances; colorants; pigments; amino acids; plant extracts, etc. The content of other additive components is preferably 40% by mass or less, and more preferably 30% by mass or less, of the total amount of the skin cosmetic.

[0046] The skin cosmetic of the present invention can be produced by known methods. For example, the skin cosmetic of the present invention can be produced by mixing (A) 1,3-propanediol, (B) 1,2-pentanediol, (C) glycerin mono 2-ethylhexyl ether, (D) ceramide, and, if necessary, (E) one or more components selected from ascorbic acid 2-glucoside, tranexamic acid, and nicotinamide, and (F) a polymer having a structural unit derived from 2-methacryloyloxyethyl phosphorylcholine, and adjusting the pH appropriately.

[0047] The skin cosmetic of the present invention can be in the form of a liquid, gel, emulsion, cream, or the like, and is used on the face, body, etc. [Example]

[0048] The present invention will be described in more detail below with reference to examples and comparative examples. <(F) Polymer Having Structural Units Derived from 2-Methacryloyloxyethyl Phosphorylcholine> (F) The following polymer 1 was used as a polymer having a structural unit derived from 2-methacryloyloxyethyl phosphorylcholine. [Polymer 1] Product name: LIPIDURE-PMB (NOF Corporation, 2-methacryloyloxyethyl phosphorylcholine 80 mol %, butyl methacrylate 20 mol %, weight average molecular weight: 600,000)

[0049] The weight average molecular weight of the polymer (F) having a structural unit derived from 2-methacryloyloxyethyl phosphorylcholine was measured as follows.

[0050] (Measurement of weight average molecular weight) The weight average molecular weight of the above polymer 1 was measured using gel permeation chromatography (GPC) under the following conditions. GPC system: EcoSEC system (manufactured by Tosoh Corporation) Column: Shodex OHpak SB-802.5HQ (Showa Denko K.K.) and SB-806HQ (Showa Denko K.K.) connected in series Developing solvent: 20 mM sodium phosphate buffer (pH 7.4) Detector: Refractive index detector Molecular weight standard: EasiVial PEG / PEO (Agilent Technologies) Flow rate: 0.5mL / min Column temperature: 40℃ Sample: Dilute the above polymer 1 with the developing solvent to a final concentration of 0.1% by weight Injection volume: 100μL

[0051] The components other than the polymer having a structural unit derived from (F) 2-methacryloyloxyethyl phosphorylcholine are as described in each table.

[0052] <Examples 1 to 17 and Comparative Examples 1 to 6> The skin cosmetics shown in Tables 1 to 4 were prepared by known methods and evaluated by the following methods. In Tables 1 to 4, the numerical values ​​for each component indicate the content (% by mass) of each component relative to the total amount of the skin cosmetic. Furthermore, (B) / (D) indicates the mass ratio of the content of (D) ceramide to the content of (B) 1,2-pentanediol. (C) / (D) indicates the mass ratio of the content of (D) ceramide to the content of (C) glycerin mono-2-ethylhexyl ether.

[0053] <Evaluation method> (1) Evaluation of comfort when applied Twenty women aged between 25 and 55 served as panelists, and 1 g of the skin cosmetic was placed in the palm of their hand and applied to their face, and the comfort of the skin cosmetic was evaluated according to the following criteria. 2 points: No stickiness or irritation, smooth feeling on the skin, and very comfortable. 1 point: There is almost no stickiness or irritation, the product feels smooth on the skin, and it feels comfortable. 0 points: Sticky or irritating, or if the skin feels unsmooth and uncomfortable.

[0054] (2) Evaluation of plumpness after application Twenty women aged between 25 and 55 served as panelists, and after applying 1 g of the skin cosmetic to the palm of their hand, they evaluated the plumpness felt after applying it to their faces according to the following criteria. 2 points: Skin feels very soft, elastic and very plump. 1 point: Skin feels soft, elastic, and plump. 0 points: Skin feels lacking in softness, elasticity, and plumpness.

[0055] (3) Evaluation of the persistence of smooth and plump skin condition after wearing the mask Twenty women aged between 25 and 55 served as panelists. They applied 1g of the skin cosmetic to the palm of their hand and applied it to their face. After wearing the mask for two hours, they evaluated the condition of their skin in terms of smoothness and plumpness, using the following criteria. 2 points: If you feel that your skin condition is still smooth and plump compared to before wearing the mask. 1 point: If you feel that your skin condition is not significantly smoother or plumper than before wearing the mask. 0 points: If you feel that your skin is less smooth and plump than before wearing the mask.

[0056] The total scores of each panelist in the above evaluations (1) to (3) were judged according to the following criteria and are shown in Tables 1 to 4. "◎" and "◯" were judged as passing. ◎: Total score is 35 points or more ○: Total score is 30 points or more and 34 points or less △: Total score is 20 or more and 29 or less ×: Total score is 19 points or less

[0057] [Table 1]

[0058] [Table 2]

[0059] [Table 3]

[0060] [Table 4]

[0061] As shown in Tables 1 to 3, all of the skin cosmetics of Examples 1 to 17 were very comfortable to apply, left the skin feeling plump after application, and maintained a smooth and plump skin condition even after wearing a mask.

[0062] In contrast, as shown in Table 4, Comparative Examples 1 to 6 do not provide sufficient performance.

[0063] Comparative Example 1 did not contain (A) 1,3-propanediol, but instead contained 1,3-butanediol, which made it unsatisfactory to apply, and did not maintain a smooth and plump skin condition after wearing the mask. Comparative Example 2 did not contain (B) 1,2-pentanediol, and therefore the comfort upon application and the plump feeling after application were insufficient, and the smooth and plump skin condition could not be maintained after wearing the mask. Comparative Example 3 did not contain (C) glycerin mono 2-ethylhexyl ether, and therefore was insufficiently comfortable when applied, and the smooth and plump skin condition could not be maintained after wearing the mask. Comparative Example 4 did not contain (D) ceramide, and therefore the plump feeling after application was insufficient, and the smooth and plump skin condition could not be maintained after wearing the mask. Comparative Example 5 contained the specified amounts of components (A), (B), (C), and (D), but also contained dipropylene glycol, a dihydric alcohol with 6 or more carbon atoms, and therefore was unsatisfactory in terms of comfort when applied. Comparative Example 6 contains the specified amounts of ingredients (A), (B), (C), and (D), but also contains phenoxyethanol, which makes it uncomfortably pleasant to apply, and the smooth, plump skin condition cannot be maintained after wearing the mask.

[0064] Next, formulation examples of the skin cosmetics of the present invention (Formulation Examples 1 and 2) are shown. These skin cosmetics of formulation examples also had excellent comfort when applied, left skin feeling plump after application, and maintained a smooth and plump skin condition even after wearing a mask.

[0065] [Prescription example 1] (Gel-type skin care product: mass %) (A) 1,3-propanediol: 10 (B) 1,2-pentanediol: 2 (C) Glycerin mono 2-ethylhexyl ether: 0.2 (D) Ceramide NP: 0.0001 (E) Nicotinamide: 5 (F) Polymer 1: 0.1 Sodium hyaluronate: 0.01 1,3-butanediol: 4 Glycerin: 5 Diglycerin: 1 Polysorbate 80: 0.4 Carboxyvinyl polymer: 0.2 Alkyl-modified carboxyvinyl polymer: 0.2 Arginine: 0.2 Glutamic acid: 0.001 Serine: 0.001 Proline: 0.001 Alanine: 0.001 Lemon juice extract: 0.001 Grapefruit fruit extract: 0.001 Fragrance: Appropriate amount Water: remaining

[0066] [Prescription example 2] (Emulsion skin care product: mass %) (A) 1,3-propanediol: 8 (B) 1,2-pentanediol: 2 (C) Glycerin mono 2-ethylhexyl ether: 0.3 (D) Ceramide NP: 0.0001 (D) Ceramide NG: 0.0001 (D) Ceramide AP: 0.0001 (E) Ascorbic acid 2-glucoside: 2 (F) Polymer 1: 0.15 Dipotassium glycyrrhizinate: 0.1 Sodium hyaluronate: 0.01 1,3-butanediol: 4 Glycerin: 5 Diglycerin: 1 Carboxyvinyl polymer: 0.1 Alkyl-modified carboxyvinyl polymer: 0.1 Arginine: 0.1 Polysorbate 80: 0.5 PEG-75 stearate: 0.5 Glyceryl stearate: 1 Behenyl Alcohol: 1 Olive oil: 6 Cetyl ethylhexanoate: 6 Tocopherol: 0.1 Glutamic acid: 0.001 Serine: 0.001 Proline: 0.001 Alanine: 0.001 Shikuwasa peel extract: 0.001 Yuzu fruit extract: 0.001 Fragrance: Appropriate amount Water: remaining [Industrial Applicability]

[0067] According to the present invention, it is possible to provide a skin cosmetic that is comfortable to apply, leaves skin feeling plump after application, and maintains a smooth and plump skin condition even after wearing a mask.

Claims

1. (A) 1 to 20% by mass of 1,3-propanediol, (B) 0.5 to 4 mass% of 1,2-pentanediol, (C) 0.01 to 0.5% by mass of glycerin mono 2-ethylhexyl ether, and (D) 0.00001 to 0.001% by mass of ceramide A skin cosmetic composition free of hexanediol, dipropylene glycol and phenoxyethanol, characterized by containing:

2. 2. The skin cosmetic according to claim 1, comprising (E) 0.1 to 10% by mass of one or more components selected from the group consisting of ascorbic acid 2-glucoside, tranexamic acid, and nicotinamide.

3. 3. The skin cosmetic according to claim 1, further comprising 0.0001 to 0.2% by mass of (F) a polymer having a structural unit derived from 2-methacryloyloxyethyl phosphorylcholine.

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