Oil-in-water sunscreen cosmetics

Abstract

This product provides an oil-in-water type sunscreen cosmetic that maintains UV protection while offering a unique refreshing feel, moisturizing effect, smooth texture, and resistance to secondary adhesion. [Solution] The following components (A) to (E) (A) Anionic surfactant 0.01-1.0% by mass (B) Sodium polyacrylate, starch-sodium acrylate graft polymer and / or carbomer sodium 0.1-3% by mass (C) Hydrophobic UV absorber 5-20.0% by mass (D) Aqueous phase thickener that causes viscosity reduction due to increased electrolyte concentration: 0.05% to 1.5% by mass (E) Higher alcohol An oil-in-water type sunscreen cosmetic containing [the specified ingredient].

Description

Technical Field

[0001] The present invention relates to an oil-in-water sunscreen cosmetic, and more specifically, to an oil-in-water sunscreen cosmetic that contains specific components, maintains an ultraviolet ray protection effect, has a unique fresh feeling in use, a moisturizing effect, a smooth feeling, and further has an anti-redeposition effect.

Background Art

[0002] Generally, protecting the skin from the harm of ultraviolet rays is one of the important issues in skin care. Therefore, various studies have been conducted to minimize the adverse effects of ultraviolet rays on the skin. For example, a method of protecting the skin from the harm of ultraviolet rays by covering the skin with a coating film containing an ultraviolet absorber or an ultraviolet scattering agent has been reported (Non-Patent Document 1).

[0003] However, in order to achieve the ultraviolet ray protection effect, it is necessary to blend a large amount of an ultraviolet absorber or an ultraviolet scattering agent. On the other hand, when a large amount of an ultraviolet absorber or an ultraviolet scattering agent is blended, the feeling in use such as stickiness and heaviness of elongation is likely to deteriorate.

[0004] Furthermore, when aiming for a high ultraviolet ray protection effect in an oil-in-water emulsion cosmetic, it is necessary to blend a larger amount of an ultraviolet absorber or an ultraviolet scattering agent than in a water-in-oil emulsion cosmetic. However, when these are highly blended, it may lead to skin irritation or deterioration of the feeling in use, causing problems. (Patent Document 1)

[0005] Contrary to the demand for the ultraviolet ray protection effect, consumers seek a fresh feeling in use for sunscreen cosmetics. In order to impart a high ultraviolet ray protection effect, it is necessary to blend a large amount of an ultraviolet ray protecting agent, but in many cases, these are oil-soluble and may impair the fresh feeling.

[0006] As an example of an oil-in-water type sunscreen cosmetic with a refreshing feel, Patent Documents 2 and 3 report a sunscreen cosmetic with a refreshing feel that contains an organic UV absorber. On the other hand, consumers often seek a more comfortable feel in addition to a refreshing feel, such as a moisturizing and smooth feeling.

[0007] Patent documents 4 and 5 report that by incorporating water-absorbing polymers to provide a refreshing and smooth feel, cosmetics that achieve both a refreshing and smooth feel by creating a unique melt-in-your-mouth texture. Patent document 4 states that even with the inclusion of oil-soluble UV absorbers, a non-sticky and refreshing feel can be obtained, but it does not mention moisturizing properties. While it is sufficient as a refreshing and refreshing gel-like emulsion cosmetic, it is not satisfactory as a moisturizing cream-like cosmetic. Patent document 5 reports that a highly viscous, refreshing gel can be created by incorporating water-absorbing polymers, but it does not report a technology to create a non-sticky cream with enhanced moisturizing properties while maintaining its refreshing feel.

[0008] To satisfy consumer demand, there is an urgent need to develop sunscreen cosmetics that provide a refreshing feel upon application, a smooth finish after application, and adequate moisturizing properties. However, no sunscreen cosmetics that fully meet these demands have been reported with conventional technology. While it is possible to provide UV protection, a refreshing feel, and a smooth finish after application, increasing the moisturizing effect often compromises these other sensations, resulting in an unsatisfactory user experience.

[0009] Furthermore, given the increasing opportunities to wear masks in recent years and the need for sustained sunscreen effects, there is a demand for sunscreens that do not adhere to masks or clothing (Patent Document 6). Secondary adhesion refers to the re-adhesion of applied sunscreen cosmetics to clothing or other belongings. If secondary adhesion occurs, the UV protection effect and the finish of the cosmetic film may deteriorate, and in recent years, there has been a demand for sunscreen cosmetics that do not adhere to masks or clothing. Technologies to enhance the secondary adhesion-free effect include incorporating large amounts of components that evaporate at room temperature, such as volatile silicone oils, volatile hydrocarbon oils, volatile hydrofluoroethers, and water, to provide quick-drying properties, and combining them with oily film-forming agents such as hard, non-transferable silicone resins (Patent Documents 7 and 8). However, Patent Documents 7 and 8 concern water-in-oil cosmetics, and applying the technologies disclosed for oil-in-water cosmetics would impart a hard film, significantly impairing the refreshing feel that is the focus of this application. Furthermore, in terms of quality, it is difficult to incorporate large amounts of oily film-forming agents or volatile oils into oil-in-water cosmetics, which have low oil content, and thus the aforementioned problems could not be solved.

[0010] Given the above background, there is a need to develop a sunscreen cosmetic that maintains UV protection while providing a refreshing feel upon application, a smooth feeling after application, and a secondary adhesion-free effect. [Prior art documents] [Non-patent literature]

[0011] [Non-Patent Document 1] "New Cosmetic Science," 2nd edition, edited by Takeo Mitsui, 2001, published by Nanzando, pp. 497-504. [Patent Documents]

[0012] [Patent Document 1] Japanese Patent Publication No. 2003-206214 [Patent Document 2] Japanese Patent Publication No. 2022-125258 [Patent Document 3] Japanese Patent Publication No. 2016-069325 [Patent Document 4] Japanese Patent Publication No. 2021-116229 [Patent Document 5] WO2020 / 138424 publication [Patent Document 6] Japanese Patent Publication No. 2016-069325 [Patent Document 7] Japanese Patent Publication No. 2005-225806 [Patent Document 8] Japanese Patent Publication No. 2006-306860 [Overview of the Initiative] [Problems that the invention aims to solve]

[0013] The present invention has been made in view of the above-mentioned prior art, and aims to provide an oil-in-water type sunscreen cosmetic that has a unique refreshing feel, moisturizing effect, smooth texture, and secondary adhesion-free effect by containing specific ingredients. [Means for solving the problem]

[0014] In order to achieve the above objective, the inventors conducted diligent research, The following components (A) to (E) (A) Anionic surfactant 0.01-1.0% by mass (B) Sodium polyacrylate, starch-sodium acrylate graft polymer and / or carbomer sodium 0.1-3.0% by mass (C) Hydrophobic UV absorber 5.0-20.0% by mass (D) Aqueous phase thickener that causes viscosity reduction due to increased electrolyte concentration: 0.05% to 1.5% by mass (E) Higher alcohol We discovered that an oil-in-water type sunscreen cosmetic containing [the specified ingredient] can solve the above problems, and thus completed the present invention. Furthermore, (F) Water-retaining paste oil The present inventors have found that an oil-in-water type sunscreen cosmetic containing the above-described configuration can solve the above problems, and thus have completed the present invention. [Advantages of the Invention]

[0015] According to the present invention, it is possible to provide an oil-in-water type sunscreen cosmetic having a fresh feeling in use, a moisturizing effect, a smooth feeling, and an anti-secondary adhesion effect. [Best Mode for Carrying Out the Invention]

[0016] Hereinafter, the present invention will be described in more detail. Unless otherwise noted, when the blending amount of a component is expressed as "%" below, it means mass%.

[0017] The anionic surfactant of component (A) in the present invention is not particularly limited in terms of type of component, but specific examples include, for example, fatty acid salts derived from fatty acids having 12 to 24 carbon atoms such as sodium laurate, potassium palmitate, and arginine stearate; alkyl sulfate ester salts such as sodium lauryl sulfate and potassium lauryl sulfate; alkyl ether sulfate ester salts such as polyoxyethylene lauryl sulfate triethanolamine; N-acyl sarcosinate salts such as sodium lauroyl sarcosinate; fatty acid amide sulfonates such as sodium N-stearoyl-N-methyltaurate and sodium N-myristoyl-N-methyltaurate; alkyl phosphates such as potassium monocetyl phosphate; and polyoxyethylene oleic acid. Examples include polyoxyethylene alkyl ether phosphates such as sodium ether phosphate and sodium polyoxyethylene stearyl ether phosphate; long-chain sulfosuccinates such as sodium di-2-ethylhexyl sulfosuccinate; long-chain N-acyl glutamates such as monosodium N-lauroyl glutamate, sodium N-stearoyl-L-glutamate, N-stearoyl-L-glutamate arginine, sodium N-stearoyl glutamate, and sodium N-myristoyl-L-glutamate; and gemini-type anionic surfactants such as sodium dimyristoyl glutamate lysine, sodium distearoyl glutamate lysine, and sodium dilauroyl glutamate lysine. Of these, alkyl phosphates, long-chain N-acyl glutamates, and gemini-type anionic surfactants are preferred, and cetyl phosphates, stearoyl glutamates, and sodium dilauroyl glutamate lysine are more preferred.

[0018] The amount of component (A) in the present invention is 0.01 to 1.0% by mass of the total amount of the oil-in-water emulsion cosmetic. More preferably, it is 0.05 to 0.8% by mass. Within this range, stability is excellent and viscosity does not decrease, and in addition, the refreshing feel upon application, the smooth feeling after application, and the secondary adhesion-free effect are excellent.

[0019] In the present invention, component (A) can be used as one or in combination of two or more types.

[0020] Components (B) sodium polyacrylate, starch-sodium acrylate graft polymer, and carbomer sodium may be used individually or in combination. These components include polyacrylate salts containing crosslinked or non-crosslinked sodium polyacrylate, carbomer sodium, or starch-sodium acrylate graft polymers, which are polymers obtained by graft polymerization of acrylic acid onto sugars such as starch. Among these, sodium polyacrylate is highly preferred.

[0021] While the average particle size of component (B) is not particularly limited, in order to impart a unique fresh and smooth feel, it is more desirable to have a pebble-like shape with an average particle size of 30 μm or less and a cross-linked type that does not form a three-dimensional network structure with water, which can impart a particularly unique fresh and smooth feel.

[0022] The amount of component (B) in the present invention is 0.1 to 3.0% by mass of the total amount of the oil-in-water emulsion cosmetic. More preferably, it is 0.5 to 2.0% by mass. Within this range, it is possible to provide a fresh feeling upon application and a smooth feeling and a secondary adhesion-free effect after application.

[0023] The component (C) hydrophobic ultraviolet absorber in this invention is not particularly limited, and any commonly used in cosmetics can be used.

[0024] Specific examples of component (C) in the present invention include, for example, 2-ethylhexyl paramethoxycinnamate, diethylaminohydroxybenzoyl hexyl benzoate, 2,4-bis-[{4-(2-ethylhexyloxy)-2-hydroxy}phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine, octocrylene, 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine, glyceryl mono-2-ethylhexanoate diparamethoxycinnamate, and 2,5-diiso Methyl propylcinnamate, isopropyl paramethoxycinnamate / diisopropyl cinnamic acid ester mixture, diethanolamine p-methoxyhydrocinnamate salt, amyl paradimethylaminobenzoate, 2-ethylhexyl paradimethylaminobenzoate, paraaminobenzoic acid, ethyldihydroxypropyl paraaminobenzoic acid, glyceryl paraaminobenzoic acid, octyldimethyl paraaminobenzoic acid, homomenthyl salicylate, 2-ethylhexyl salicylate, triethanolamine salicylate, dihydroxydimethoxy Benzophenone, dihydroxydimethoxybenzophenone disulfonate sodium, 2,2'-4,4'-tetrahydroxybenzophenone, 4,4'-dihydroxybenzophenone, 4-tert-butyl-4'-methoxydibenzoylmethane, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfate, 2,2'-dihydroxy-4-methoxybenzophenone, 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, Examples include 2-hydroxy-4-n-octyloxybenzophenone, 2-phenyl-benzimidazole-5-sulfate, 4-isopropyldibenzoylmethane, 2-ethylhexyl dimethoxybenzylidene dioxoimidazolidinepropionate, 1-(3,4-dimethoxyphenyl)-4,4-dimethyl-1,3-pentanedione, cinoxate, methyl-O-aminobenzoate, 3-(4-methylbenzylidene)camphor, octyltriazone, and methylenebisbenzotriazolyltetramethylbutylphenol.

[0025] The amount of component (C) in this invention is used in the range of 5.0 to 20.0% by mass, preferably 7.0 to 18.0% by mass, relative to the total amount of the oil-in-water emulsion cosmetic. Within this range, sufficient UV protection, a fresh feel, moisturizing effect, and a smooth feel can be provided. On the other hand, if there is too much UV absorber, stickiness tends to occur, and the smooth feel and secondary adhesion-free effect tend to be impaired.

[0026] In the present invention, component (C) can be used by one or in combination of two or more types.

[0027] Component (D), an aqueous phase thickener whose viscosity decreases with increasing electrolyte concentration, is a thickener that has the function of thickening the aqueous phase and whose viscosity decreases in the presence of electrolytes within the range of concentrations generally used in cosmetics. The property of a component (D), in which viscosity decreases with increasing electrolyte concentration in a composition, is generally expressed as low salt tolerance. Such low salt tolerance thickeners are selected from water-soluble thickeners that have been conventionally used in cosmetics and the like for the purpose of adjusting the viscosity of the aqueous phase.

[0028] Specific examples of component (D) in the present invention include vinyl polymers such as polyvinylpyrrolidone, vinylpyrrolidone and vinyl acetate copolymers, and carboxyvinyl polymers; and acrylic polymers such as sodium polyacrylate, polyethyl acrylate, polyacrylate alkanolamine, alkyl methacrylate and dimethylaminoethyl methacrylate copolymers, poly2-acrylamido-2-methylpropanesulfonic acid, polymethacryloyloxytrimethylammonium, (acryloyldimethyltaurate ammonium / VP) copolymer, and (dimethylacrylamide / acryloyldimethyltaurate sodium) crosspolymer. These can be blended as appropriate, but carboxyvinyl polymer, acrylic acid / alkyl methacrylate copolymer, sodium polyacrylate, (acryloyldimethyltaurate ammonium / VP) copolymer, and (sodium acrylate / acryloyldimethyltaurate sodium) copolymer are particularly suitable, and can achieve a fresh feel, a smooth texture, and a secondary adhesion-free effect.

[0029] The amount of component (D) in this invention is 0.05 to 1.5% by mass relative to the total amount of the oil-in-water emulsion cosmetic. Within this range, a fresh feel, a smooth texture, and a secondary adhesion-free effect can be imparted.

[0030] In the present invention, component (D) can be used by one or in combination of two or more types.

[0031] The carbon number of component (E) higher alcohol used in the present invention is not particularly limited, but a monovalent linear saturated alcohol with 16 or more carbon atoms is preferred, and a monovalent linear saturated alcohol with 16 to 22 carbon atoms is even more preferred from the viewpoint of stability and usability. Examples include cetyl alcohol, stearyl alcohol, and behenyl alcohol.

[0032] The amount of component (E) used in this invention is not particularly limited, but 0.1 to 2.0% by mass is preferred based on the total amount of the oil-in-water emulsion cosmetic. Component (E) is typically used to thicken the cosmetic and adjust it to a rich, creamy texture. Generally, increasing the amount of component (E) tends to result in a heavy, oily, creamy feel, losing the refreshing and smooth texture. However, by combining it with component (A), an anionic surfactant, it is possible to impart a creamy formulation while exhibiting thixotropy, thus maintaining the refreshing feel of the formulation and achieving both moisturizing and smooth textures. Furthermore, component (E) also plays a role in providing a high UV protection effect, and this amount is preferable for improving the UV protection effect.

[0033] In the present invention, component (E) can be used by one or in combination of two or more types.

[0034] The component (F) water-retaining paste oil used in the present invention is not particularly limited as long as it is a component defined in the water-retaining test described below. In this invention, the paste oil is a semi-solid oil at 25°C with a melting point of 25 to 70°C. (Water retention test) 10g of the oil to be tested was heated to 50°C, and 50°C water was gradually added while stirring until the water drained from the oil. The mixture was then left at room temperature overnight. After that, the separated water was removed, and the amount of water (by weight in grams) held by the oil was measured. This value was divided by the amount of oil (10g) and multiplied by 100 to obtain the water-holding capacity (%). Based on the results of this water-holding capacity test, oils with a water-holding capacity of 100% or more correspond to component (F).

[0035] Specific examples of component (F) in the present invention include (adipic acid / 2-ethylhexanoic acid / stearic acid) glyceryl oligoester, N-lauroyl-L-glutamic acid di(phytosteryl / behenyl / 2-octyldodecyl), N-lauroyl-L-glutamic acid di(cholesteryl / behenyl / octyldodecyl), dipentaerythritol fatty acid ester, mixed fatty acid triglycerides, tri(caprylic / caprin / myristic / stearic acid) glyceryl, hydrogenated castor oil stearate, as well as phytosteryl isostearate, phytosteryl oleate, and hydroxystearate. Examples include phytosterol derivatives such as phytosteryl, macadamia nut fatty acid phytosteryl, branched fatty acid (C12-31) phytosteryl, dimer dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl), dimer dilinoleic acid (isostearyl / phytosteryl), and dimer dilinoleyl bis(behenyl / isostearyl / phytosteryl); lanolin derivatives such as lanolin, lanolin alcohol, lanolin fatty acid, and lanolin acetate; and cholesterol derivatives such as hydroxy fatty acid cholesteryl and branched fatty acid cholesteryl. Preferably, (adipic acid / 2-ethylhexanoic acid / stearic acid) glyceryl oligoester, N-lauroyl-L-glutamic acid di(phytosteryl / behenyl / 2-octyldodecyl), N-lauroyl-L-glutamic acid di(cholesteryl / behenyl / octyldodecyl), and more preferably (adipic acid / 2-ethylhexanoic acid / stearic acid) glyceryl oligoester.

[0036] The amount of component (F) used in this invention is not particularly limited, but 0.1 to 3.0% by mass is preferred based on the total amount of the oil-in-water emulsion cosmetic. By incorporating component (F), a moisturizing effect can be provided without impairing the fresh feel, smoothness, or secondary adhesion-free effect through a synergistic effect with other components.

[0037] In the present invention, component (F) can be used as one or in combination of two or more types.

[0038] In addition to the essential components mentioned above, the oil-in-water sunscreen cosmetic composition of the present invention may also contain other components commonly used in cosmetics, as needed. For example, pearlescent agents, moisturizers, water-soluble polymers other than components (B) and (D), fragrances, bactericides, preservatives, antioxidants, pH adjusters, chelating agents, anti-inflammatory agents, antioxidants, cooling agents, herbal extracts, vitamins, and other additives can be added as appropriate. The proportion of these components can be appropriately selected depending on their type and purpose, and they may be used individually or in combination of two or more as appropriate. [Examples]

[0039] The present invention will be further explained below with reference to examples. These examples do not limit the present invention in any way. Furthermore, the Examples and Comparative Examples in the table show formulations of oil-in-water type sunscreen cosmetics.

[0040] <Evaluation of the refreshing feel> In the evaluation test for the refreshing feel upon application, 10 expert evaluators assessed the sensation 30 minutes after applying 0.5g of the evaluation sample to the face, assigning scores according to the following evaluation criteria. Based on the average score, a score of 4.0 or higher was marked with ◎, 3.0 or higher and less than 4.0 with ○, 2.0 or higher and less than 3.0 with △, and less than 2.0 with ×. (Evaluation Criteria) 5: Very juicy 4: Fresh 3: I can't say either way. 2: Not fresh 1: I don't feel any freshness at all.

[0041] <Moisturizing effect> In the moisturizing effect evaluation test, 10 expert evaluators assessed the feel of the product 30 minutes after applying 0.5g of the evaluation sample to the face, according to the following evaluation criteria. Based on the average score, a score of 4.0 or higher was marked with ◎, 3.0 or higher and less than 4.0 with ○, 2.0 or higher and less than 3.0 with △, and less than 2.0 with ×. (Evaluation Criteria) 5: I feel it's very moisturizing. 4: Feels moisturized 3: I can't say either way. 2: Does not feel moisturizing. 1: I don't feel any moisturizing effect at all.

[0042] <Smooth and silky feel> In the evaluation test for smoothness, 10 expert evaluators assessed the feel of the product 30 minutes after applying 0.5g of the evaluation sample to the face, according to the following evaluation criteria. Based on the average score, a score of 4.0 or higher was marked with ◎, 3.0 or higher and less than 4.0 with ○, 2.0 or higher and less than 3.0 with △, and less than 2.0 with ×. (Evaluation Criteria) 5: Feels very smooth. 4: Feels smooth and silky. 3: I can't say either way. 2: Does not feel smooth. 1: I don't feel any smoothness at all.

[0043] <Evaluation method for reducing secondary adhesion> Sample preparation was carried out in accordance with the SPF value measurement method specified in ISO-24444. A 2 mg / cm² composition was uniformly applied to a Helioplate HD6 (HELIOPLATE® HD6, manufactured by HerioScreen Lab., plate size: 5 cm x 5 cm, material: PMMA), and the SPF value was measured using an SPF analyzer UV-2000S (manufactured by Sanyo Trading Co., Ltd.). Next, the plate prepared as described above was placed on tissue paper with the coated side down, and a 500 g load was placed on the plate for 10 minutes to allow it to adhere to the tissue paper, after which the SPF value was measured again. The percentage of the SPF value after adhesion relative to the SPF value before adhesion was calculated, and this value was defined as the retention rate (%). (Evaluation Criteria) ◎: Survival rate of 75% or more ○: Survival rate of 50% or more but less than 75% △: Survival rate of 25% or more but less than 50% ×: Remaining rate less than 25%

[0044] [Table 1]

[0045] [Table 2]

[0046] [Table 3]

[0047] Regarding Examples 1 to 30 in the table, the oil-in-water type sunscreen cosmetic composition within the scope of the claims of the present invention was found to have solved the problems of the present invention. In particular, Examples 1 to 4 achieved both a refreshing feel and a smooth feeling after application, despite containing a UV absorber, and also demonstrated excellent secondary adhesion prevention. In Examples 5 to 7, by further incorporating a water-retaining paste oil, it was possible to improve moisturizing while maintaining the refreshing feel, smooth feeling after application, and secondary adhesion prevention effect. Examples 29 and 30 are examples in which other paste oils were used instead of the water-retaining paste oil. Compared to Example 5, the effects of the invention were not impaired, but the balance of moisturizing feel, smooth feeling after application, and secondary adhesion prevention effect was more favorable with the water-retaining paste oil. Comparative Examples 1 to 3, in which anionic surfactants were changed to nonionic surfactants or removed, show a significant loss of the refreshing feel, and the smooth feeling after application and secondary adhesion prevention effect were also reduced. Furthermore, in Comparative Example 5, which contained a polymer similar to component (B), not only was the refreshing feel lost, but the smooth feeling after application and the secondary adhesion prevention effect also deteriorated significantly. This also indicates that the problem cannot be solved unless component (B) is the polymer specified in this application. In Comparative Examples 7-9, where component (D) was replaced with another polymer compound, the refreshing feel was lost, and the smooth feeling after application and the secondary adhesion prevention effect tended to deteriorate. In Comparative Examples 11-12, where component (E) was replaced with another solid oil, the refreshing feel was lost, and the smooth feeling after application and the secondary adhesion prevention effect tended to deteriorate. From the results above, it can be seen that the cosmetic composition of this invention has a refreshing feel, a smooth and moisturizing feel after application, and a secondary adhesion-free effect. This solves the problems of oil-in-water type sunscreen cosmetics mentioned at the beginning and meets consumer needs.

[0048] Cleansing cosmetics were prepared using conventional methods according to the following formulations. It was confirmed that all formulations exhibited the effects of the present invention.

[0049] Oil-in-water sunscreen cream Ingredients Amount (%) (1) 2-ethylhexyl paramethoxycinnamate 10 (2) Diethylaminohydroxybenzoyl hexyl benzoate 2 (3) Octocrylene 2 (4) 2-ethylhexyl paradimethylaminobenzoate (5) Caprylic / Capric Triglyceride 3 (6) Methylphenylpolysiloxane 1 (7) Cetanol 2 (8) Eicosene-vinylpyrrolidone copolymer 1 (9) Stearyl glycyrrhetinate 0.05 (10) d-δ-tocopherol 0.01 (11) (Adipic acid / 2-ethylhexanoic acid / stearic acid) Glyceryl oligoester 1 (12) Acrylates Crosspolymer-2-Na 2 (13) Sodium polyacrylate (crosslinked type) 0.8 (14) Carbomer 0.1 (15) Concentrated glycerin 2 (16) 1,3-Butylene glycol 8 (17) Sodium stearoyl glutamate 0.5 (18) Alkyl acrylate copolymer emulsion (1) 0.5 (19) pH adjuster, appropriate amount (20) Appropriate amount of preservative (21) Purified water remainder (22) Ceramide 3 0.05 (23) Simethicone 0.05 (24) Dimethicone 0.5 (25) Cholesterol 0.1 (26) Ubiquinone 0.001 (27) 30% dilauroyl glutamate lysine sodium aqueous solution 0.05 (28) Ascorbyl glucoside 0.1 (29) Stearoxyhydroxypropylmethylcellulose 0.1 (30) Methylgluceth-10 1.0 (31) Polymethyl methacrylate 2.0 (32) Silica 0.1 (33) Sodium glutamate 0.01 (34) Comfrey leaf extract 0.01 (35) Hydrolyzed soy protein 0.01 (36) Tabebuia impetiginosa bark extract 0.01 (37) Glyceryl stearate 2 Total 100

[0050] Oil-in-water sunscreen cream Ingredients Amount (%) (1) 2-ethylhexyl paramethoxycinnamate 7 (2) Diethylaminohydroxybenzoyl hexyl benzoate 1 (3) Octocrylene 2 (4) 2-ethylhexyl paradimethylaminobenzoate 0.5 (5) Cetyl ethylhexanoate 5 (6) Methylphenylpolysiloxane 1 (7) Cetanol 2 (8) Hydrogenated polyisobutene 4 (9) Cholesterol 0.05 (10) d-δ-tocopherol 0.01 (11) (Adipic acid / 2-ethylhexanoic acid / stearic acid) Glyceryl oligoester 1 (12) Sodium polyacrylate (crosslinked type) 1.0 (13) (Sodium acrylate / Sodium acryloyldimethyltaurate copolymer 0.2 (14) Carbomer Na 0.5 (15) Carbomer 0.1 (12) Concentrated glycerin 2 (13) 1,3-Butylene glycol 8 (14) Cetyl phosphate K 0.5 (15) Cassava extract 0.5 (16) pH adjuster: appropriate amount (17) Appropriate amount of preservative (18) Purified water remainder (30) PET 1.0 (31) (HDI / Trimethylol Hexyllactone) Crosspolymer 0.3 (32) Job's Tears Seed Extract 0.01 (33) Comfrey leaf extract 0.01 (34) Sodium hyaluronate 0.01 (34) Tabebuia impetiginosa bark extract 0.01 (35) Glyceryl stearate 2 Total 100

[0051] Oil-in-water sunscreen lotion Ingredients Amount (%) (1) 2-ethylhexyl paramethoxycinnamate 5 (2) Diethylaminohydroxybenzoyl hexyl benzoate 1 (3) Octocrylene 1 (4) 2-ethylhexyl paradimethylaminobenzoate 0.5 (5) Cetyl ethylhexanoate 2 (6) Methylphenylpolysiloxane 1 (7) Cetanol 1.3 (8) Hydrogenated polyisobutene 3 (9) Cholesterol 0.05 (10) Centella Asiatica Extract 0.01 (11) (Adipic acid / 2-ethylhexanoic acid / stearic acid) Glyceryl oligoester 1 (12) Acrylates Crosspolymer-2-Na 2 (13) (Sodium acrylate / Sodium acryloyldimethyl taurate copolymer 0.1 (14) Sodium polyacrylate (crosslinked type) 0.35 (15) Carbomer 0.05 (12) Concentrated glycerin 2 (13) 1,3-Butylene glycol 8 (14) Cetyl phosphate K 0.3 (15) Houttuynia cordata extract 0.5 (16) pH adjuster: appropriate amount (17) Appropriate amount of preservative (18) Purified water remainder (30) Nylon-6 0.3 (31) Hydrolyzed hydrogenated starch 0.27 (32) Glucosyltrehalose 0.47 (33) Coptis japonica extract 0.1 (34) Hydrolyzed collagen 0.01 (34) Tabebuia impetiginosa bark extract 0.5 (35) Glyceryl stearate 1 Total 100

[0052] Oil-in-water sunscreen primer cream Ingredients Amount (%) (1) 2-ethylhexyl paramethoxycinnamate 6 (2) Diethylaminohydroxybenzoyl hexyl benzoate 2 (3) Octocrylene 1 (4) 2-ethylhexyl paradimethylaminobenzoate (5) N-lauroyl-L-glutamic acid Di(phytosteryl / behenyl / 2-octyldodecyl) 1 (5) (Adipic acid / 2-ethylhexanoic acid / stearic acid) Glyceryl oligoester 1 (6) Diethoxyethyl succinate 5 (7) Behenyl alcohol 1 (8) Dextrin palmitate 1 (9) Dipotassium glycyrrhizinate 0.05 (10) d-δ-tocopherol 0.01 (11) Sodium polyacrylate (crosslinked type) 1.0 (12)(Acrylates / Alkyl Acrylate) (C10-30) Crosspolymer 0.1 (12) Concentrated glycerin 2 (13) 1,3-Butylene glycol 8 (14) Potassium cetyl phosphate 0.7 (15) Xanthan gum crosspolymer 1 (16) pH adjuster: appropriate amount (17) Appropriate amount of preservative (18) Purified water remainder (25) 30% dilauroyl glutamate lysine sodium aqueous solution 0.05 (13) Methylhydrogenpolysiloxane-treated titanium dioxide microparticles 0.5 (14) Bengara 0.04 (15) Yellow iron oxide 0.05 Total 100

Claims

1. The following components (A) to (E) (A) Anionic surfactant 0.01 to 1.0% by mass (B) One or more selected from sodium polyacrylate, starch / sodium acrylate graft polymer, and carbomer sodium: 0.1 to 3.0% by mass (C) Hydrophobic UV absorber 5.0 to 20.0% by mass (D) Aqueous phase thickeners that cause viscosity reduction due to increased electrolyte concentration (excluding component (B)): 0.05 to 1.5% by mass (E) Higher alcohols An oil-in-water type sunscreen cosmetic containing [the specified ingredient].

2. Furthermore, the oil-in-water type sunscreen cosmetic according to claim 1, further comprising (F) a water-retaining paste oil.

3. The oil-in-water sunscreen cosmetic according to claim 2, characterized in that the aforementioned component (F) is one or more selected from (adipic acid / 2-ethylhexanoic acid / stearic acid) glyceryl oligoester, N-lauroyl-L-glutamic acid di(phytosteryl / behenyl / 2-octyldodecyl), and N-lauroyl-L-glutamic acid di(cholesteryl / behenyl / octyldodecyl).

4. The oil-in-water sunscreen cosmetic according to any one of claims 1 to 3, characterized in that component (D) is one or more selected from carboxyvinyl polymer, acrylic acid / alkyl methacrylate copolymer, (ammonium acryloyldimethyltaurate / vinylpyrrolidone) copolymer, (sodium acrylate / sodium acryloyldimethyltaurate) copolymer, and (hydroxyethyl acrylate / sodium acryloyldimethyltaurate) copolymer.

Images