Water-in-oil emulsion cosmetic

Abstract

This invention provides a water-in-oil emulsion cosmetic composition with excellent UV protection and durability. [Solution] The following components (A) to (D); (A) Oil-soluble ultraviolet absorbers and / or metal oxides that are solid at 25°C. (B) Silicone-based film-forming agent (C) Water-soluble or water-dispersible UV absorber (D) A water-in-oil emulsified cosmetic containing polyvinyl acetate and at least one selected from (acrylates / alkyl(C1-18) / alkyl(C1-8) acrylamide) copolymer AMP.

Description

Technical Field

[0001] The present invention relates to a water-in-oil emulsion cosmetic.

Background Art

[0002] Sunburn caused by ultraviolet rays promotes skin browning, reduction of skin elasticity, and generation of wrinkles. Therefore, sunscreen cosmetics containing an ultraviolet absorber or an ultraviolet scattering agent are used to prevent these problems. Sunscreen cosmetics are roughly classified into oil-in-water (O / W type) and water-in-oil (W / O type). Users expect both types to continuously exhibit excellent ultraviolet protection ability.

[0003] For example, Patent Document 1 discloses an emulsified cosmetic characterized by containing (a) optionally surface-treated fine particle metal oxide, (b) hexyl diethylaminohydroxybenzoyl benzoate and / or t-butylmethoxybenzoyl methane, (c) optionally surface-treated fine particle metal oxide, and (d) a powder selected from spherical silica, spherical polymethyl methacrylate, and flaky glass, wherein (a) and (b) are contained in the oil phase and (c) is contained in the aqueous phase. Further, Patent Document 2 discloses a water-in-oil emulsion composition containing (a) an aqueous dispersion of an oil-soluble ultraviolet absorber, (b) 6% by mass or more and 20% by mass or less of an ultraviolet scattering agent, and (c) phenyl-modified polysiloxane.

[0004] However, the emulsified cosmetic described in Patent Document 1 and the water-in-oil emulsion composition described in Patent Document 2 contain an ultraviolet absorber and an ultraviolet scattering agent in both the oil phase and the aqueous phase and have excellent ultraviolet protection ability. However, since the film-forming agent is only contained in the oil phase, the ultraviolet absorber and the ultraviolet scattering agent contained in the aqueous phase easily fall off from the skin surface when they come into contact with water, and it is difficult to continuously obtain sufficient ultraviolet protection ability.

Prior Art Documents

Patent Documents

[0005] [Patent Document 1] Japanese Patent Publication No. 2017-114900 [Patent Document 2] Japanese Patent Publication No. 2019-34916 [Overview of the project] [Problems that the invention aims to solve]

[0006] This invention provides a water-in-oil emulsion cosmetic composition with excellent UV protection and durability.

[0007] The inventors of the present invention have conducted extensive research to solve the above problems and have found that by including an ultraviolet absorber and / or a metal oxide in both the oil phase and the aqueous phase, and by including a specific film-forming agent in each phase, an oil-in-water emulsion cosmetic with excellent ultraviolet protection and durability can be obtained, thus completing the present invention. [Means for solving the problem]

[0008] The present invention includes the following embodiments. [1] The following components (A) to (D); (A) Oil-soluble ultraviolet absorbers and / or metal oxides that are solid at 25°C. (B) Silicone-based film-forming agent (C) Water-soluble or water-dispersible UV absorber (D) At least one selected from polyvinyl acetate and (acrylates / alkyl(C1-18) / alkyl(C1-8) acrylamide) copolymer AMP This is a water-in-oil emulsion cosmetic containing [ingredient name]. [2](C) The water-in-oil emulsion cosmetic described in [1], wherein the content of a water-soluble or water-dispersible ultraviolet absorber is 0.05 to 5% by mass. [3](D)The water-in-oil emulsion cosmetic according to [1] or [2], wherein the content of at least one selected from polyvinyl acetate and (acrylates / alkyl(C1-18) / alkyl(C1-8) acrylamide) copolymer AMP is 0.1 to 5% by mass. [4] The water-in-oil emulsion cosmetic described in [1] or [2], wherein the total amount of component (A) and component (C) {(A)+(C)} relative to the total amount of component (B) and component (D) {(B)+(D)} is 0.1 to 100. [5] Furthermore, the water-in-oil emulsion cosmetic composition according to [1] or [2], comprising (E) a silicone-based surfactant. [6](E) The water-in-oil emulsion cosmetic composition described in [5], wherein the content of the silicone-based surfactant is 0.1 to 3% by mass. [7] A sunscreen cosmetic, which is a water-in-oil emulsion cosmetic as described in [1] or [2]. [Effects of the Invention]

[0009] The water-in-oil emulsion cosmetic composition of the present invention exhibits excellent UV protection and durability, as well as excellent stability over time. [Modes for carrying out the invention]

[0010] The present invention will be described in detail below. The description of the present invention below may be based on preferred embodiments of the present invention, but the present invention is not limited to such embodiments. In this specification, the "~" symbol indicating a numerical range is used to mean that the numbers before and after it are included as the lower and upper limits, respectively.

[0011] The water-in-oil emulsion cosmetic composition of the present invention (hereinafter referred to as "the present invention cosmetic composition") contains component (A), an oil-soluble ultraviolet absorber and / or metal oxide that is solid at 25°C. Component (A) is contained in the oil phase of the present invention cosmetic composition and absorbs and / or scatters ultraviolet light in the oil phase formed when applied to the skin.

[0012] In the cosmetic composition of the present invention, component (A) may contain either an oil-soluble ultraviolet absorber that is solid at 25°C or a metal oxide, but from the viewpoint of further enhancing ultraviolet protection, it is preferable to use both in combination.

[0013] The oil-soluble ultraviolet absorber, which is solid at 25°C, is not particularly limited as long as it is commonly used in cosmetics. Examples include diethylamino hydroxybenzoyl hexyl benzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, t-butyl methoxydibenzoylmethane, ethylhexyl triazone, etc., and one or more of these can be used. In this specification, "oil-soluble" means that it dissolves in a general oil that can be used in cosmetics at room temperature or under heated conditions at a concentration of 1% by mass or more.

[0014] Examples of commercially available oil-soluble UV absorbers that are solid at 25°C include Uvinul® A Plus Granular (diethylamino hydroxybenzoyl hexyl benzoate, manufactured by BASF Japan Ltd.), Tinosorb® S (bis-ethylhexyloxyphenol methoxyphenyl triazine, manufactured by BASF Japan Ltd.), Parsol® 1789 (t-butyl methoxydibenzoylmethane, manufactured by DSM Corporation), and Uvinul® T150 (ethylhexyl triazone, manufactured by BASF Japan Ltd.).

[0015] The metal oxide is not particularly limited as long as it is commonly used in cosmetics, and examples include titanium dioxide, zinc oxide, zirconium oxide, cerium oxide, iron oxide, etc., and one or more of these can be used. Of these, titanium dioxide and zinc oxide are preferred, and zinc oxide is more preferred, as they have excellent ultraviolet protection capabilities. In this specification, metal oxide means a metal oxide that has the ability to absorb and / or scatter ultraviolet light.

[0016] The shape, particle size, and particle structure of the metal oxides mentioned above are not particularly limited, and any of the following shapes can be used: spherical, elliptical, plate-like, granular, needle-like, fusiform, radial, etc.; and non-porous, porous, etc.

[0017] From the perspective of ultraviolet protection ability and the like, the average particle diameter of the metal oxide is, for example, preferably 100 nm or less, more preferably 50 nm or less, as the upper limit value. As the lower limit value, for example, preferably 1 nm or more, more preferably 3 nm or more, and even more preferably 5 nm or more. As the range, 1 to 100 nm is preferable, 3 to 100 nm is more preferable, and 5 to 50 nm is even more preferable. The average particle diameter of the metal oxide was measured by an image analysis method of a transmission electron microscope image.

[0018] The metal oxide may also be surface-treated by a known method as necessary. The surface treatment is not particularly limited, but from the perspective of ultraviolet protection ability and its persistence, etc., a hydrophobization treatment is preferable.

[0019] The hydrophobization treatment agent used for the hydrophobization treatment is not particularly limited as long as it can impart hydrophobicity to the metal oxide. For example, silicone treatment agents, fluorine treatment agents, organic titanate treatment agents, fatty acid treatment agents, lecithin treatment agents, amino acid treatment agents, acyl amino acid treatment agents, coupling agents (for example, silane-based such as alkylalkoxysilane treatment, aluminum-based, titanium-based, etc.) and the like can be mentioned. Among these, from the perspective of ultraviolet protection ability and its persistence, etc., it is preferable to use a silicone treatment agent and a coupling agent.

[0020] Examples of commercially available products of metal oxides include STR-40-OTS (titanium oxide with an average particle diameter of 15 nm surface-treated with triethoxycaprylylsilane, manufactured by Sakai Chemical Industry Co., Ltd.), MZX-304OTS (zinc oxide with an average particle diameter of 35 nm surface-treated with triethoxycaprylylsilane, manufactured by Teika Co., Ltd.), MZY-505M (zinc oxide with an average particle diameter of 25 nm surface-treated with dimethicone, manufactured by Teika Co., Ltd.), and the like.

[0021] The content of component (A) is not particularly limited, but from the viewpoint of UV protection ability and stability over time, for oil-soluble UV absorbers that are solid at 25°C, the lower limit is preferably 0.1% by mass (hereinafter referred to as "%)" or more, more preferably 0.5% or more, and even more preferably 1% or more, relative to the total amount of the cosmetic composition of the present invention. The upper limit is preferably 10% or less, more preferably 8% or less, and even more preferably 6% or less. The content of solid oil-soluble UV absorbers is preferably, for example, 0.1 to 10%, more preferably 0.5 to 8%, and even more preferably 1 to 6%. In the case of metal oxides, the lower limit is preferably 1% or more, more preferably 5% or more, and even more preferably 10% or more. The upper limit is preferably 30% or less, more preferably 25% or less, and even more preferably 20% or less. The content of metal oxides is preferably, for example, 1 to 30%, more preferably 5 to 25%, and even more preferably 10 to 20%. When using a solid oil-soluble UV absorber and a metal oxide in combination at 25°C, the content ranges for each should be the same as described above.

[0022] The cosmetic composition of the present invention contains component (B), a silicone-based film-forming agent. In the cosmetic composition of the present invention, component (B) is contained in the oil phase and forms a film on the oil phase when applied to the skin.

[0023] Component (B) is not particularly limited as long as it is commonly used in cosmetics, and examples include trimethylsiloxysilicate, polymethylsilcesoxane, polypropylsilcesoxane, trifluoroalkyldimethyltrimethylsiloxysilicate, (trimethylsiloxysilicate / dimethiconol) crosspolymer, (dimethicone / vinyltrimethylsiloxysilicate) crosspolymer, (dimethicone / vinyldimethicone) crosspolymer, (vinyldimethyl / trimethylsiloxysilicate / dimethicone) crosspolymer, (vinyldimethyl / stearyldimethiconetrimethylsiloxysilicate) crosspolymer, etc., and one or more of these can be used. Of these, trimethylsiloxysilicate and (dimethicone / vinyltrimethylsiloxysilicate) crosspolymer are preferred from the viewpoint of durability, etc.

[0024] Examples of commercially available products of component (B) include KF-9021 (trimethylsiloxysilicate, manufactured by Shin-Etsu Chemical Co., Ltd.), BELSIL® TMS 803 (trimethylsiloxysilicate, manufactured by Asahi Kasei Wacker Silicone Co., Ltd.), and BELSIL® REG 102 ((dimethicone / vinyltrimethylsiloxysilicate) crosspolymer, manufactured by Asahi Kasei Wacker Silicone Co., Ltd.).

[0025] The content of component (B) is not particularly limited, but from the viewpoint of stability over time and durability, for example, it is preferable that the lower limit of the pure content be 0.1% or more, more preferably 0.5% or more, and even more preferably 1% or more, relative to the total amount of the cosmetic composition of the present invention. The upper limit is preferably 10% or less, more preferably 5% or less, and even more preferably 4% or less. Furthermore, the content of component (B) is preferably 0.1 to 10% as pure content, more preferably 0.5 to 5%, and even more preferably 1 to 4%.

[0026] The cosmetic composition of the present invention contains component (C), a water-soluble or water-dispersible ultraviolet absorber. In the cosmetic composition of the present invention, component (C) is contained in the aqueous phase and absorbs ultraviolet rays in the aqueous phase formed when applied to the skin.

[0027] Component (C) is not particularly limited as long as it is commonly used in cosmetics. Examples of water-soluble ultraviolet absorbers include phenylbenzimidazole sulfonic acid and its salts, hydroxymethoxybenzophenone sulfonic acid and its salts, dihydroxydimethoxybenzophenone sulfonic acid and its salts, terephthalylidene dicamphor sulfonic acid, tetrahydroxybenzophenone, 4-(2-β-glucopyranosiloxy)propoxy-2-hydroxybenzophenone, etc., and one or more of these can be used. In this specification, water solubility means dissolving in water at room temperature or under heated conditions, with or without the use of a neutralizing agent.

[0028] Examples of commercially available water-soluble UV absorbers include Eusolex® 232 (phenylbenzimidazole sulfonic acid, manufactured by Merck Performance Materials G.K.), Uvinul® MS 40 (hydroxymethoxybenzophenone sulfonic acid, manufactured by BASF Japan Ltd.), and Uvinul® TS Hydro (approximately 30% aqueous solution of terephthalylidene dicamphor sulfonic acid, manufactured by BASF Japan Ltd.).

[0029] Examples of water-dispersible ultraviolet absorbers include bisethylhexyloxyphenol methoxyphenyl triazine and methylenebisbenzotriazolyltetramethylbutylphenol, and one or more of these can be used.

[0030] In the cosmetic composition of the present invention, a water-dispersible ultraviolet absorber is a water-insoluble ultraviolet absorber that has been dispersed in advance in an aqueous solution containing a dispersant such as a surfactant. Examples of commercially available water-dispersible UV absorbers include Tinosorb® S Aqua (bis-ethylhexyloxyphenol methoxyphenyl triazine 20% aqueous dispersion, manufactured by BASF Japan Ltd.), Tinosorb® M (methylene bisbenzotriazolyltetramethylbutylphenol 50% aqueous dispersion, manufactured by BASF Japan Ltd.), and K22-M40 (methylene bisbenzotriazolyltetramethylbutylphenol 40% aqueous dispersion, manufactured by Dainippon Kasei Co., Ltd.).

[0031] From the viewpoint of UV protection ability and other factors, phenylbenzimidazole sulfonic acid and methylenebisbenzotriazolyltetramethylbutylphenol are preferred as component (C) used in the cosmetic composition of the present invention, and methylenebisbenzotriazolyltetramethylbutylphenol is more preferred.

[0032] The content of component (C) is not particularly limited, but from the viewpoint of stability over time, UV protection ability, and durability, it is preferably, for example, at a lower limit of 0.05% or more as a pure content, more preferably at 0.1% or more, and even more preferably at 0.5% or more, relative to the total amount of the cosmetic composition of the present invention. At the upper limit, it is preferably 5% or less, more preferably 2.5% or less, and even more preferably 1.5% or less. Furthermore, the content of component (C) is preferably, for example, at a pure content of 0.05 to 5% of the total amount of the cosmetic composition of the present invention, more preferably at 0.1 to 2.5%, and even more preferably at 0.5 to 1.5%.

[0033] The present invention's cosmetic composition contains component (D) polyvinyl acetate and at least one selected from (acrylates / alkyl(C1-18) / alkyl(C1-8) acrylamide) copolymer AMP. In the present invention's cosmetic composition, component (D) is contained in the aqueous phase and forms a film on the aqueous phase when applied to the skin.

[0034] As for polyvinyl acetate, there are no particular restrictions as long as it conforms to any of the provisions for polyvinyl acetate, polyvinyl acetate liquid, or polyvinyl acetate emulsion in the 2006 Standards for Raw Materials of Quasi-Drugs; any of these can be used. The INCI name is polyvinyl acetate.

[0035] The polyvinyl acetate emulsion described above is a polymer emulsion obtained by emulsion polymerization of polyvinyl acetate in an aqueous solvent. Examples of commercially available products include Vinibran GV-5651 (manufactured by Nisshin Chemical Industry Co., Ltd.). In the present invention, a polyvinyl acetate polymer emulsion with a solid content concentration of 30-60% using water as the medium is preferably used.

[0036] The (Acrylates / Alkyl(C1-18) Acrylate / Alkyl(C1-8) Acrylamide) Copolymer AMP is a copolymer of a 2-amino-2-methyl-1-propanol (AMP) salt of a monomer consisting of acrylic acid, methacrylic acid, or one of their simple esters, with alkyl(C1-18) acrylate or alkyl(C1-18) methacrylate and alkyl(C1-8) acrylate.

[0037] Examples of commercially available (acrylates / alkyl(C1-18) / alkyl(C1-8) acrylamide) copolymer AMP include Plussize L-9716U (manufactured by Go-o Chemical Industry Co., Ltd.).

[0038] Polyvinyl acetate is preferred as component (D) used in the cosmetic composition of the present invention from the viewpoint of long-term stability and other factors.

[0039] The content of component (D) is not particularly limited, but from the viewpoint of stability over time and durability, for example, the lower limit is preferably 0.1% or more, more preferably 0.2% or more, and still preferably 0.3% or more, relative to the total amount of the cosmetic composition of the present invention, as a pure content. The upper limit is preferably 5% or less, more preferably 4% or less, and still preferably 3% or less. Furthermore, the content of component (D) is preferably 0.1 to 5% as a pure content, more preferably 0.2 to 4%, and still preferably 0.3 to 3%.

[0040] In the cosmetic composition of the present invention, the total amount of component (B) and component (D) {(B)+(D)} The total amount of component (A) and component (C) {(A)+(C)}, the mass percentage ({(A)+(C)} / {(B)+(D)}), is not particularly limited, but from the viewpoint of stability over time, UV protection ability, and durability, for example, the lower limit is preferably 0.01 or higher, more preferably 0.1 or higher, and even more preferably 1 or higher. As an upper limit, it is preferably 100 or lower, more preferably 75 or lower, and even more preferably 15 or lower. Furthermore, the mass percentage ({(A)+(C)} / {(B)+(D)}) is preferably 0.01 to 100, more preferably 0.1 to 75, and even more preferably 1 to 15.

[0041] The cosmetic composition of the present invention preferably further contains component (E) a silicone-based surfactant. Component (E) is not particularly limited as long as it is commonly used in cosmetics, but examples include polyoxyalkylene-modified organopolysiloxane, long-chain hydrocarbon group-containing polyoxyalkylene-modified organopolysiloxane, polyglycerin-modified organopolysiloxane, long-chain hydrocarbon group-containing polyglycerin-modified organopolysiloxane, etc., and one or more of these can be used.

[0042] Examples of polyoxyalkylene-modified organopolysiloxanes include linear polyoxyalkylene-modified organopolysiloxanes such as PEG-3 dimethicone, PEG-8 dimethicone, PEG-9 dimethicone, PEG-10 dimethicone, PEG-9 methyl ether dimethicone, PEG-10 methyl ether dimethicone, and PEG-11 methyl ether dimethicone; branched polyoxyalkylene-modified organopolysiloxanes such as PEG-9 polydimethylsiloxyethyl dimethicone; and cross-linked polyoxyalkylene-modified organopolysiloxanes such as (dimethicone / (PEG-10 / 15)) crosspolymer. One or more of these can be used.

[0043] Examples of long-chain hydrocarbon group-containing polyoxyalkylene-modified organopolysiloxanes include: straight-chain long-chain hydrocarbon group-containing polyoxyalkylene-modified organopolysiloxanes such as cetyl PEG / PPG-10 / 1 dimethicone, PEG / PPG-10 / 3 oleyl ether dimethicone, and PEG / PPG-20 / 22 butyl ether dimethicone; branched-chain long-chain hydrocarbon group-containing polyoxyalkylene-modified organopolysiloxanes such as lauryl PEG-9 polydimethylsiloxyethyl dimethicone; and cross-linked long-chain hydrocarbon group-containing polyoxyalkylene-modified organopolysiloxanes such as (PEG-15 / lauryl dimethicone) crosspolymer, (PEG-10 / lauryl dimethicone) crosspolymer, (PEG-15 / lauryl dimethicone) crosspolymer, and (PEG-15 / lauryl polydimethylsiloxyethyl dimethicone) crosspolymer. One or more of these can be used.

[0044] Examples of polyglycerin-modified organopolysiloxanes include branched polyglycerin-modified organopolysiloxanes such as polyglyceryl-3 disiloxane dimethicone and polyglyceryl-3 polydimethylsiloxyethyl dimethicone; and cross-linked polyglycerin-modified organopolysiloxanes such as (dimethicone / polyglycerin-3) crosspolymer; and one or more of these can be used.

[0045] Examples of long-chain hydrocarbon group-containing polyglycerin-modified organopolysiloxanes include branched long-chain hydrocarbon group-containing polyglycerin-modified organopolysiloxanes such as lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone; and cross-linked long-chain hydrocarbon group-containing polyglycerin-modified organopolysiloxanes such as (lauryl dimethicone / polyglycerin-3) crosspolymer and (polyglyceryl-3 / lauryl polydimethylsiloxyethyl dimethicone) crosspolymer. One or more of these can be used.

[0046] Among these silicone-based surfactants, polyoxyalkylene-modified organopolysiloxanes and long-chain hydrocarbon group-containing polyoxyalkylene-modified organopolysiloxanes are preferred from the viewpoint of long-term stability, and linear and branched polyoxyalkylene-modified organopolysiloxanes and branched long-chain hydrocarbon group-containing polyoxyalkylene-modified organopolysiloxanes are more preferred. Among these, PEG-9 dimethicone is particularly preferred as a linear polyoxyalkylene-modified organopolysiloxane; PEG-9 polydimethylsiloxyethyl dimethicone is preferred as a branched polyoxyalkylene-modified organopolysiloxane; and lauryl PEG-9 polydimethylsiloxyethyl dimethicone is preferred as a branched long-chain hydrocarbon group-containing polyoxyalkylene-modified organopolysiloxane.

[0047] The above-mentioned silicone-based surfactants can be commercially available products, such as KF-6011, KF-6011P, KF-6012, KF-6015, KF-6017, KF-6017P, KF-6028, KF-6043 (polyoxyalkylene-modified organopolysiloxane, manufactured by Shin-Etsu Chemical Co., Ltd.); KF-6038, KF-6048 (long-chain hydrocarbon group-containing polyoxyalkylene-modified organopolysiloxane, manufactured by Shin-Etsu Chemical Co., Ltd.); KF-6104, KF-6106 (polyglycerin-modified organopolysiloxane, manufactured by Shin-Etsu Chemical Co., Ltd.); KF-6105, KF-6115 (long-chain hydrocarbon group-containing polyoxyalkylene-modified organopolysiloxane, manufactured by Shin-Etsu Chemical Co., Ltd.).

[0048] The content of component (E) is not particularly limited, but from the viewpoint of stability over time, etc., it is preferably 0.1% or more, more preferably 0.25% or more, and even more preferably 0.5% or more in the total amount of the cosmetic composition of the present invention. Furthermore, it is preferably 3% or less, more preferably 2.5% or less, and even more preferably 2% or less in the upper limit. In addition, the content of (E) is preferably 0.1 to 3%, more preferably 0.25 to 2.5%, and even more preferably 0.5 to 2% in relation to the total amount of the cosmetic composition of the present invention.

[0049] The cosmetic composition of the present invention may contain other components as long as they do not impair the effects of the present invention. Examples of other components include oily components, powders other than component (A) metal oxides, surfactants other than component (E), UV absorbers other than components (A) and (C), aqueous components such as moisturizers, antioxidants, and cosmetic components.

[0050] Oily components include hydrocarbon oils such as isodecane, isododecane, hydrogenated polyisobutene, light liquid paraffin, liquid paraffin, and squalane; isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, glyceryl trioctanoate, diglyceryl diisostearate, diglyceryl triisostearate, diisostearyl malate, propylene glycol dicaprate, cetyl 2-ethylhexanoate, 2-ethylhexyl hydroxystearate, pentaerythrityl tetraisostearate, octyldodecyl stearoyloxystearate, 2-ethylhexyl paramethoxycinnamate, alkyl (C12-15) benzoate, and ester oils such as di(caprylic / capric acid) PG; Examples include silicone oils such as methylpolysiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, and fluorine-modified silicone; higher alcohols such as cetearyl alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, arachidyl alcohol, behenyl alcohol, 2-hexyldecanol, isostearyl alcohol, and 2-octyldodecanol; and higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, hydroxystearic acid, 12-hydroxystearic acid, oleic acid, undecylenic acid, linoleic acid, ricinoleic acid, and lanolin fatty acid; and one or more of these can be used.

[0051] The powder is anything other than component (A) metal oxides, and is not particularly limited in terms of shape (spherical, plate-shaped, needle-shaped, etc.), particle size (fuzzy, fine, pigment-grade, etc.), particle structure (porous, non-porous, etc.), etc., and examples include inorganic powders, lustrous powders, organic powders, and composite powders. For example, white inorganic pigments such as barium sulfate and calcium carbonate; colored inorganic pigments such as carbon black, chromium hydroxide, Prussian blue, and ultramarine; white body powders such as talc, mica, sericite, synthetic sericite, silica, anhydrous silicic acid, synthetic fluorphlogopite, kaolin, silicon carbide, bentonite, hectorite, smectite, diatomaceous earth, aluminum silicate, magnesium aluminum metasilicate, calcium silicate, barium silicate, magnesium silicate, calcium carbonate, magnesium carbonate, hydroxyapatite, and boron nitride; luminous powders such as bismuth oxychloride, fish scale foil, polyethylene terephthalate-aluminum-epoxy laminated powder, polyethylene terephthalate-polyolefin laminated film powder, and polyethylene terephthalate-polymethyl methacrylate laminated film powder; polyamide resins, polyethylene resins, polyacrylic resins, polyester resins, fluororesins, and cellulose resins. Examples include synthetic resins such as polystyrene resins, styrene-acrylic copolymer resins, and silicone elastomer resins; organic polymer resin powders such as polypropylene resins and urethane resins; organic pigment powders such as Red 201, Red 202, Red 205, Red 226, Red 228, Orange 203, Orange 204, Blue 404, and Yellow 401; organic pigment powders such as zirconium, barium, or aluminum lake, such as Red 3, Red 104, Red 106, Orange 205, Yellow 4, Yellow 5, Green 3, and Blue 1; metal soap powders; and organic low molecular weight powders such as N-acyllysine. One or more of these powders can be used, and if necessary, they may be surface-treated by known methods using fluorine compounds, silicone compounds, metal soaps, collagen, hydrocarbons, higher fatty acids, higher alcohols, esters, waxes, surfactants, etc., or further compounded powders may be used.

[0052] The surfactant is a surfactant other than component (E), and examples include nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, etc., and one or more of these can be used.

[0053] The UV absorber is a UV absorber other than components (A) and (C), and examples include ethylhexyl methoxycinnamate, homosalate, polysilicone-15, etc., and one or more of these can be used.

[0054] Examples of aqueous components include water such as purified water, deionized water, seawater, deep-sea water, and steam-distilled water from plants; alcohols such as ethanol; glycols such as propylene glycol, 1,2-pentanediol, 1,3-butylene glycol, dipropylene glycol, tripropylene glycol, and polyethylene glycol; glycerols such as glycerin, diglycerin, and polyglycerin; sugar alcohols such as sorbitol and maltitol; and plant extracts. One or more of these can be used.

[0055] Antioxidants include, for example, tocopherol and ascorbic acid; beauty ingredients include, for example, vitamins, anti-inflammatory agents, and herbal medicines; and preservatives include, for example, parahydroxybenzoic acid esters and phenoxyethanol. One or more of these can be used.

[0056] The cosmetic composition of the present invention can be manufactured according to conventional methods. Specifically, for example, an oil phase is prepared by mixing components (A) and (B) and, if necessary, component (E). On the other hand, an aqueous phase is prepared by mixing components (C) and (D). Then, the cosmetic composition of the present invention can be obtained by adding the aqueous phase containing components (C) and (D) to the oil phase containing components (A) and (B) and mixing and dispersing them. The cosmetic composition of the present invention obtained in this way contains an ultraviolet absorber and / or a metal oxide in both the oil phase and the aqueous phase, and each phase contains a specific film-forming agent.

[0057] The average particle size of the emulsion droplets in the cosmetic composition of the present invention is not particularly limited, but is preferably 0.1 to 100 μm, more preferably 1 to 100 μm, and even more preferably 5 to 50 μm. By adjusting the average particle size of the emulsion droplets to within the above range, the cosmetic composition of the present invention can be obtained that is less prone to deterioration of texture and aggregation, and has excellent stability over time. The average particle size of the emulsion droplets is determined by observing with an optical microscope (200x magnification) and measuring the particle size of any 100 emulsion droplets in one field of view.

[0058] The properties of the cosmetic composition of the present invention are not particularly limited, and examples include liquid, two-layer, emulsion, cream, semi-solid, solid, etc. A two-layer cosmetic composition is a cosmetic composition that becomes uniformly emulsified by shaking, and in the case of a two-layer cosmetic composition, the average particle size of the emulsion droplets refers to the average particle size of the emulsion droplets after shaking.

[0059] The specific uses of the cosmetic composition of the present invention are not particularly limited, and include, for example, makeup cosmetics such as foundation, makeup base, eyeshadow, blush, lipstick, and lip balm; skincare cosmetics such as lotion, cream, and sunscreen; and haircare cosmetics such as hair pack, hair milk, and hair styling products. Among these, from the viewpoint of easily obtaining the effects of the cosmetic composition of the present invention, it is preferable to use it in skincare cosmetics, and more preferably in sunscreen. The method of use is not particularly limited, and for example, it can be applied to the skin with the hands or fingers after being shaken to make it uniform before use.

[0060] Furthermore, the present invention may also employ the following configuration. [1] The following components (A) to (D); (A) Oil-soluble ultraviolet absorbers and / or metal oxides that are solid at 25°C. (B) Silicone-based film-forming agent (C) Water-soluble or water-dispersible UV absorber (D) At least one selected from polyvinyl acetate and (acrylates / alkyl(C1-18) / alkyl(C1-8) acrylamide) copolymer AMP This is a water-in-oil emulsion cosmetic containing [ingredient name]. [2](C) The water-in-oil emulsion cosmetic described in [1], wherein the content of a water-soluble or water-dispersible ultraviolet absorber is 0.05 to 5% by mass. [3](D)The water-in-oil emulsion cosmetic according to [1] or [2], wherein the content of at least one selected from polyvinyl acetate and (acrylates / alkyl(C1-18) / alkyl(C1-8) acrylamide) copolymer AMP is 0.1 to 5% by mass. [4] The water-in-oil emulsion cosmetic described in [1] to [3], wherein the total amount of component (A) and component (C) {(A) + (C)} relative to the total amount of component (B) and component (D) {(B) + (D)} is 0.1 to 100. [5] Furthermore, the water-in-oil emulsion cosmetic composition described in [1] to [4] contains (E) a silicone-based surfactant. [6](E) The water-in-oil emulsion cosmetic composition described in [5], wherein the content of the silicone-based surfactant is 0.1 to 3% by mass. [7] Sunscreen cosmetic, water-in-oil emulsion cosmetic as described in [1] to [6]. [Examples]

[0061] The present invention will be described in detail below with reference to examples. However, the present invention is not limited to these examples.

[0062] The water-in-oil emulsion cosmetics shown in Tables 1 and 2 below were prepared by the following method. The obtained water-in-oil emulsion cosmetics were evaluated for (a) stability over time, (b) UV protection ability, and (c) durability by the following method. The results are also shown in Tables 1 and 2. Note that the unit for the content of each component in Tables 1 and 2 is "mass%".

[0063] [Table 1]

[0064] [Table 2] *1 KF-6038 (manufactured by Shin-Etsu Chemical Co., Ltd.) *2 MZX-304OTS (average particle size 25nm, manufactured by Teika Co., Ltd.) *3 Uvinul® A Plus Granular (manufactured by BASF Japan Ltd.) *4 Tinosorb® S (manufactured by BASF Japan Ltd.) *5 Uvinul (registered trademark) T150 (manufactured by BASF Japan Ltd.) *6 K22-M40 (40% pure content, manufactured by Dainippon Kasei Co., Ltd.) *7 Eusolex® 232 (manufactured by Merck Performance Materials G.K.) *8 Viniblan GV-5651 (40% purity, manufactured by Nisshin Chemical Industry Co., Ltd.)

[0065] [Methods for preparing water-in-oil emulsion cosmetics in Examples 1-13 and Comparative Examples 1-4] A: Mix and disperse a portion of components (1) and (2), and (3) and (5). B: Heat and dissolve components (4) and (6) to (8) uniformly. Mix C:B with A, the remaining component (2), and (9) to (14) and disperse them uniformly. D: Mix components (15) to (22) and disperse them uniformly. D was added to E:C and uniformly dispersed to obtain a water-in-oil sunscreen.

[0066] <Evaluation method: (a) Stability over time> Each sample listed in Tables 1 and 2 was placed in a standard glass bottle and stored in a 50°C constant temperature bath for one month. After that, the glass bottle was shaken up and down 20 times, 1 g of the sample was taken out and spread out on a 7 cm x 12 cm glass plate by hand. The sample was then observed and evaluated according to the following criteria.

[0067] <Judgment criteria> (Evaluation) : (Judgment) No deterioration in skin texture or aggregation is observed: A Almost no deterioration of skin texture or aggregation is observed: B (There is no roughness from aggregates when it is stretched out.) Poor texture and visible aggregates :C (You can feel the roughness of the aggregates when you stretch it out.)

[0068] <Evaluation method: (b) UV protection ability> Place each sample listed in Tables 1 and 2 into a standard glass vial, shake 20 times up and down, and then transfer to a PMMA plate (HELIOPLATE HD6, Labsphere) at a concentration of 2 mg / cm³. 2 After coating and allowing to stand for 20 minutes, SPF measurements were performed using an SPF analyzer (UV-2000S, manufactured by Labsphere). Ten points were measured on the plate, and the average value obtained was evaluated according to the following criteria.

[0069] <Judgment criteria> (Average score of evaluation) : (Judgment) 35 or older: A 25 or older but less than 35: B Less than 25: C

[0070] <Evaluation method: (c) Durability> Place each sample listed in Tables 1 and 2 into a standard glass vial, shake 20 times up and down, and then transfer to a PMMA plate (HELIOPLATE HD6, Labsphere) at a concentration of 2 mg / cm³. 2 After coating and letting it stand for 20 minutes, SPF measurement was performed using an SPF analyzer (UV-2000S, Labsphere). Ten points were measured on the plate, and the average value obtained was taken as the SPF value before the water bath. Next, the sample was placed in a water bath. The water bath was performed by attaching the sample to the side of a container filled with 2 L of water at 35°C, and stirring the water in the container with a paddle mixer at 300 rpm for 5 minutes. After the water bath was completed, the sample was allowed to stand and dry for 20 minutes, and the value obtained using the measurement and calculation methods described above was taken as the SPF value after the water bath. The ratio of the obtained SPF values ​​before and after the water bath (SPF measurement value after water bath) / (SPF measurement value before water bath) was calculated and judged according to the following criteria.

[0071] <Judgment Criteria> Ratio [(SPF measurement after bathing) / (SPF measurement before bathing)] : (Judgment) 0.7 or higher: A 0.5 or higher and less than 0.7: B 0.3 or higher and less than 0.5: C Less than 0.3: D

[0072] As shown in Table 1, the water-in-oil emulsion cosmetics of Examples 1 to 13 exhibited excellent stability over time, UV protection, and durability. On the other hand, as shown in Table 2, the water-in-oil emulsion cosmetic composition of Comparative Example 1, which contained film-forming agents other than component (B), exhibited poor stability over time and durability. Furthermore, Comparative Example 2, a water-in-oil emulsion cosmetic that did not contain ingredient (D), exhibited inferior UV protection and durability. Furthermore, the water-in-oil emulsion cosmetics of Comparative Examples 3 and 4, which contained film-forming agents other than component (D), exhibited inferior stability over time and durability.

[0073] Example 14: Water-in-oil sunscreen (shaking type) (Ingredients) (%) 1. Treatment with 3% triethoxycaprylylsilane and 10% dimethylpolysiloxane. Fine particle zinc oxide (average particle size: 25 nm) 15 2. Polyhydroxystearic acid 0.2 3. Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone*1 1 4. Dimethylpolysiloxane 15 5. Diisopropyl sebacate 5 6. Diethylamino hydroxybenzoyl hexyl benzoate*3 1 7. Bis-ethylhexyloxyphenol methoxyphenyl triazine*4 1 8. Ethylhexyltriazone*5 1 9. 2-ethylhexyl salicylate 3 10. Alkyl benzoate (C12-C15) 5 11. Diethylhexyl succinate 5 12. Di(caprylic / capric acid) PG 5 13. Polysilicone-15 2 14. Trimethylsiloxysilicate 2.5 15. Isododecane 2.5 16. Silica 5 17. Purified water remaining amount 18. Phenylbenzimidazole sulfonic acid*7 2 19. Triethanolamine 1.12 20. Ethanol 10 21. Polyvinyl acetate emulsion*8 2.5 22. Sodium chloride 0.1

[0074] (Manufacturing method) A: Mix and disperse components (1), (2), and some of (3) to (5). B: Heat and dissolve the remaining component (5) and (6) to (12) uniformly. Mix C:B with A and the remaining components (3) and (4), and (13) to (15) and disperse them uniformly. D: Mix components (17) to (22) and disperse them uniformly. E:C was mixed with (16) and D, and uniformly dispersed and emulsified to obtain a water-in-oil sunscreen (shaking type).

[0075] (result) The water-in-oil sunscreen (shaking type) of Example 14 exhibited excellent stability over time, UV protection, and durability.

[0076] Example 15: Water-in-oil sunscreen (cream type) (Ingredients) (%) 1. Diethylamino hydroxybenzoyl hexyl benzoate*3 1 2. Bis-ethylhexyloxyphenol methoxyphenyl triazine*4 1 3. Ethylhexyltriazone*5 1 4. Ethylhexyl Methoxycinnamate 7 5. Polysilicone-15 2 6. (Dimethicone / (PEG-10 / 15) crosspolymer mixture*9 10 7. Glyceryl tri-2-ethylhexanoate 2 8. Treatment with 3% triethoxycaprylylsilane and 10% dimethylpolysiloxane. Fine particle zinc oxide (average particle size: 25 nm) 10 9. Polyhydroxystearic acid 0.2 10. Dimethylsilylated silica (average particle size: 7 nm) 1 11. Dimethylpolysiloxane 1.5 12. Polymethylsilsesquioxane (average particle size: 6 μm) 3 13.Fragrance composition 0.1 14. Trimethylsiloxysilicate 2.5 15. Isododecane 2.5 16. PEG-9 Polydimethylsiloxyethyl Dimethicone*10 1 17. Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone*1 0.5 18. Quaternium-18 Hectorite * 11 0.9 19. Cyclopentasiloxane 4 20. Purified water remaining amount 21. Ethanol 5 22. Methylenebisbenzotriazolyltetramethylbutylphenol dispersion*6 2.5 23. (Acrylates / Alkyl (C1-18) Acrylate / Alkyl (C1-8)) Acrylamide copolymer AMP 2.5 24. Sodium chloride 0.1 *9 KSG-210 (25% purity, manufactured by Shin-Etsu Chemical Co., Ltd.) *10 KF-6028P (manufactured by Shin-Etsu Chemical Co., Ltd.) *11 Smecton-SAN-P (manufactured by Kunimine Industries Co., Ltd.)

[0077] (Manufacturing method) A: Heat and dissolve components (1) to (11) uniformly. B: Add A and components (12) and (13) and mix and disperse. C: Add components (14) to (19) to B and mix and disperse. (20) to (24) were added to D:C and emulsified to obtain a water-in-oil type sunscreen cosmetic (cream).

[0078] (result) The water-in-oil sunscreen (cream type) of Example 15 exhibited excellent stability over time, UV protection ability, and durability.

[0079] Example 16: Water-in-oil sunscreen (aerosol type) (Ingredients) (%) 1. Ethylhexyl Methoxycinnamate 9 2. Diethylaminohydroxybenzoyl hexyl benzoate*3 2 3. Bis-ethylhexyloxyphenol methoxyphenyl triazine*4 2 4. Ethylhexyltriazone*5 2 5. 2-ethylhexyl salicylate 3 6. Alkyl (C12-15) benzoate 5 7. Diethylhexyl succinate 10 8. Di(caprylic / capric acid) PG 10 9. Polysilicone-15 1.5 10. Dimethylpolysiloxane 5 11. PEG-9 Polydimethylsiloxyethyl Dimethicone*10 1.5 12. Trimethylsiloxysilicate 2.5 13. Isododecane 2.5 14. Silica 5 15. Ethanol 30 16. Purified water remaining amount 17. Methylenebisbenzotriazolyltetramethylbutylphenol dispersion*6 2.5 18. Polyvinyl acetate emulsion*8 2.5 19.Fragrance composition 0.1

[0080] (Manufacturing method) A: Heat and dissolve ingredients (1) to (8) uniformly. B: Mix ingredients (9) to (14). C: Mix A and B and disperse them uniformly. D: Mix ingredients (15) to (19). E:D was added to C and dispersed to obtain a water-in-oil emulsion type cosmetic base. After filling 30g of the cosmetic concentrate obtained in F:E into a pressure-resistant container, the valve was fixed in place, and 50g of LPG 0.15 and 20g of dimethyl ether were filled into the pressure-resistant container through the valve to obtain a water-in-oil type sunscreen (aerosol type).

[0081] (result) The water-in-oil sunscreen (aerosol type) of Example 16 exhibited excellent stability over time, UV protection, and durability.

[0082] Example 17: Water-in-oil foundation (Ingredients) (%) 1. Silicone-treated titanium dioxide (average particle size: 15nm) * 12 5 2. Silicone-treated titanium dioxide (average particle size: 270nm) * 13 5 3. Silicone-treated zinc oxide (average particle size: 25nm) * 14 10 4. Red iron oxide 0.2 5. Yellow iron oxide 0.6 6. Black iron oxide 0.2 7. Silicone-treated sericite 3 8. Isotridecyl isononanoate 6 9. PEG-9 Polydimethylsiloxyethyl Dimethicone*10 1.5 10. Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone*1 0.5 11. (Acrylates / Ethylhexyl Acrylate / Dimethicone Methacrylate) Copolymer*15 0.5 12. Cyclopentasiloxane 15 13. Disteardimonium hectorite 0.5 14. Stearalkonium hectorite 0.5 15. Ethanol 0.5 16. Ethylhexyl Methoxycinnamate 7 17. Diethylaminohydroxybenzoyl hexyl benzoate*3 2 18. Methyltrimethicone 5 19. Trimethylsiloxysilicate solution *16 5 20. Isododecane 2.5 21. Methylparaben 0.3 22. Ethanol 5 23. Glycerin 1 24. Purified water remaining amount 25. Bis-ethylhexyloxyphenol methoxyphenyl triazine dispersion*17 5 26. Polyvinyl acetate emulsion*8 2.5 *12 MTY-100SAS (manufactured by Teika Co., Ltd.) *13 SA-TR-8 (manufactured by Miyoshi Chemical Co., Ltd.) *14 MZY-505M (manufactured by Teika Co., Ltd.) *15 KF-578P (manufactured by Shin-Etsu Chemical Co., Ltd.) *16 Cyclopentasiloxane solution (50% purity) *17 Tinosorb® S Aqua (20% pure content, manufactured by BASF Japan Ltd.)

[0083] (Manufacturing method) A: Mix and disperse components (1) to (15) uniformly. B: Heat and dissolve components (16) and (17) uniformly. C: Mix A, B, and components (18) to (20) and disperse them uniformly. D: Mix ingredients (21) to (26). E:D was added to C and emulsified to obtain a water-in-oil foundation.

[0084] (result) The water-in-oil foundation of Example 17 exhibited excellent stability over time, UV protection, and durability.

[0085] Example 18: Water-in-oil foundation (Ingredients) (%) 1. Silicone-treated titanium dioxide (average particle size: 15nm) * 12 5 2. Silicone-treated titanium dioxide (average particle size: 270nm) * 13 5 3. Silicone-treated zinc oxide (average particle size: 25nm) * 14 10 4. Red iron oxide 0.2 5. Yellow iron oxide 0.6 6. Black iron oxide 0.2 7. Silicone-treated sericite 5 8. Isotridecyl isononanoate 8 9. PEG-9 Polydimethylsiloxyethyl Dimethicone*10 1.5 10. Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone*1 0.5 11. (Acrylates / Ethylhexyl Acrylate / Dimethicone Methacrylate) Copolymer*15 0.5 12. Cyclopentasiloxane 12 13. Disteardimonium hectorite 0.5 14. Stearalkonium hectorite 0.5 15. Ethanol 0.5 16. 2-ethylhexyl salicylate 5 17. Diethylaminohydroxybenzoyl hexyl benzoate*3 2 18. Methyltrimethicone 5 19. Trimethylsiloxysilicate solution *16 5 20. Isododecane 5 21. Methylparaben 0.3 22. Ethanol 5 23. Glycerin 1 24. Purified water remaining amount 25. Bis-ethylhexyloxyphenol methoxyphenyl triazine dispersion*16 5 26. Polyvinyl acetate emulsion*8 2.5

[0086] (Manufacturing method) A: Mix and disperse components (1) to (15) uniformly. B: Heat and dissolve components (16) and (17) uniformly. C: Mix A, B, and components (18) to (20) and disperse them uniformly. D: Mix ingredients (21) to (26). E:D was added to C and emulsified to obtain a water-in-oil foundation.

[0087] (result) The water-in-oil foundation of Example 18 exhibited excellent stability over time, UV protection, and durability.

[0088] Example 19: Water-in-oil sunscreen (shaking type) (Ingredients) (%) 1. Treatment with 3% triethoxycaprylylsilane and 10% dimethylpolysiloxane. Fine particle zinc oxide (average particle size: 25 nm) 10 2. Polyhydroxystearic acid 0.3 3. Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone*1 0.5 4. Dimethylpolysiloxane 15 5. Diisopropyl sebacate 5 6. Diethylamino hydroxybenzoyl hexyl benzoate*3 2 7. Bis-ethylhexyloxyphenol methoxyphenyl triazine*4 2 8. Ethylhexyltriazone*5 1 9. 2-ethylhexyl salicylate 5 10. Alkyl benzoate (C12-C15) 5 11. Diethylhexyl succinate 5 12. Di(caprylic / capric acid) PG 5 13. Polysilicone-15 2 14. Trimethylsiloxysilicate 2.5 15. Isododecane 2.5 16. Silica 5 17. Purified water remaining amount 18. Phenylbenzimidazole sulfonic acid*7 2 19. Triethanolamine 1.12 20. Ethanol 10 21. Polyvinyl acetate emulsion*8 2.5 22. Sodium chloride 0.1

[0089] (Manufacturing method) A: Mix and disperse components (1), (2), and some of (3) to (5). B: Heat and dissolve the remaining component (5) and (6) to (12) uniformly. Mix C:B with A and the remaining components (3) and (4), and (13) to (15) and disperse them uniformly. D: Mix components (17) to (22) and disperse them uniformly. E:C was mixed with (16) and D, and uniformly dispersed and emulsified to obtain a water-in-oil sunscreen (shaking type).

[0090] (result) The water-in-oil sunscreen (shaking type) of Example 19 exhibited excellent stability over time, UV protection, and durability.

[0091] The fragrance compositions used in Examples 15 and 16 of the present invention are shown in Table 3 below.

[0092] [Table 3]

Claims

1. The following components (A) to (D): (A) Oil-soluble ultraviolet absorbers and / or metal oxides that are solid at 25°C. (B) Silicone-based film-forming agent (C) Water-soluble or water-dispersible ultraviolet absorber (D) At least one selected from polyvinyl acetate and (acrylates / alkyl(C1-18) / alkyl(C1-8) acrylamide) copolymer AMP A water-in-oil emulsion cosmetic containing the following ingredients.

2. The water-in-oil emulsion cosmetic composition according to claim 1, wherein the content of the aforementioned component (C) water-soluble or water-dispersible ultraviolet absorber is 0.05 to 5% by mass.

3. The water-in-oil emulsion cosmetic composition according to claim 1 or 2, wherein the content of component (D) is 0.1 to 5% by mass of at least one selected from polyvinyl acetate and (acrylates / alkyl (C1-18) acrylate / alkyl (C1-8) acrylamide) copolymer AMP.

4. The water-in-oil emulsion cosmetic composition according to claim 1 or 2, wherein the mass ratio of the total amount of component (A) and component (C) {(A) + (C)} to the total amount of component (B) and component (D) {(B) + (D)} is 0.1 to 100.

5. Furthermore, the water-in-oil emulsion cosmetic composition according to claim 1 or 2, further comprising (E) a silicone-based surfactant.

6. The water-in-oil emulsion cosmetic composition according to claim 5, wherein the content of the (E) silicone-based surfactant is 0.1 to 3% by mass.

7. A water-in-oil emulsion cosmetic according to claim 1 or 2, which is a sunscreen cosmetic.

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