Oil-based or emulsion makeup cosmetics

The cosmetic formulation uses specific metal oxide particles and clay minerals to address safety and environmental concerns, ensuring a uniform, matte finish and stability without volatile cyclic silicones or microplastic beads.

JP7799352B2Active Publication Date: 2026-01-15NIPPON SHIKIZAI INC
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Patent Information

Application Number
JP2024561669
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-10-11
Publication Date
2026-01-15
Estimated Expiration
2043-10-11

AI Technical Summary

Technical Problem

Existing makeup cosmetics using ultrafine titanium dioxide particles pose safety concerns due to inflammation risks, produce an unnatural glossy texture, and contribute to environmental pollution through volatile cyclic silicones and microplastic beads.

Method used

An oil-based or emulsion makeup cosmetic formulation containing metal oxide particles with a specific particle size distribution (90 to 140 nm) and a D90/D10 ratio of 2.1 or less, along with clay minerals, avoids small particles and volatile cyclic silicones, providing a uniform, matte finish and improved stability.

Benefits of technology

The cosmetic achieves excellent safety, stability, and uniformity without small titanium dioxide particles or microplastics, maintaining UV protection and reducing glossiness, while being environmentally friendly.

✦ Generated by Eureka AI based on patent content.

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Abstract

Provided is an oily or emulsified makeup cosmetic excellent in stability and usability, the oily or emulsified makeup cosmetic being free from ultrafine particles that raise a concern about an effect on a human body and from microplastic beads and volatile cyclic silicone that raise a concern about an effect on the environment. This oily or emulsified makeup cosmetic comprises: (A) metal oxide particles, wherein the D50 in terms of the minor axis is 90-140 nm, and the D90 / D10 in terms of the minor axis is 2.1 or less; and (B) a clay mineral. The oily or emulsified makeup cosmetic is free from microplastic beads and volatile cyclic silicone.
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Description

[Technical Field]

[0001] The present invention relates to an oil-based or emulsion makeup cosmetic, and more particularly to an oil-based or emulsion makeup cosmetic that is environmentally friendly and safe, provides a uniform finish, and is highly stable. [Background technology]

[0002] Traditionally, ultrafine titanium oxide and ultrafine zinc oxide particles with an average particle size of 50 nm or less have been used as UV scattering agents due to their high UV protection effect. Cosmetics containing ultrafine titanium oxide particles with an average particle size of 50 nm or less and volatile cyclic silicones are known (see, for example, Patent Documents 1 and 2). Volatile cyclic silicones and microplastic beads are useful for achieving a uniform finish and reducing unnatural gloss. However, in recent years, with growing global interest in environmental issues, the issue of environmental pollution caused by volatile cyclic silicones and microplastic beads has become apparent.

[0003] A water-in-oil emulsion cosmetic is known that contains, relative to the total amount of the cosmetic, (A) 5 to 15% by mass of an oil-soluble film-forming agent, (B) 0.1 to 5% by mass of a glycerin fatty acid ester, and (C) 20 to 50% by mass of a volatile linear silicone oil (see, for example, Patent Document 3). The invention disclosed in Patent Document 3 achieves stability and good spreadability of the cosmetic by using components (B) and (C) in combination instead of the volatile cyclic silicone.

[0004] A water-in-oil emulsion cosmetic is known that contains (A) a solid oil powder, (B) an emulsifying silicone elastomer, and (C) titanium oxide in an oil phase containing a volatile oil, where the volatile oil is a hydrocarbon oil or an acyclic silicone (see, for example, Patent Document 4). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-231102 [Patent Document 2] Japanese Patent Application Publication No. 2019-6714 [Patent Document 3] Japanese Patent Publication No. 2022-177984 [Patent Document 4] Patent Publication No. 2021-50169 Summary of the Invention [Problem to be solved by the invention]

[0006] In recent years, titanium dioxide particles smaller than 60 nm have been reported to cause inflammation when introduced into the body, raising safety concerns. For this reason, sunscreen users, particularly European consumers, have tended to avoid incorporating titanium dioxide particles with a particle size of 60 nm or less into cosmetics. Furthermore, makeup cosmetics containing large amounts of such small-sized titanium dioxide particles have been found to produce an unnatural and unpleasant glossy texture, which can settle into uneven areas of the skin upon application, resulting in an uneven finish. Furthermore, to reduce environmental impact, the market demands products that do not contain microplastic beads or volatile cyclic silicones. [Means for solving the problem]

[0007] As a result of extensive research, the present inventors have come to the conclusion that by using metal oxide particles having a specific particle size distribution, it is possible to produce a cosmetic composition that is excellent in feel and stability even without using conventional ingredients, and have thus completed the present invention.

[0008] According to one embodiment, the present invention relates to an oil-based or emulsion makeup cosmetic, which contains (A) metal oxide particles having a minor axis D50 of 90 to 140 nm and a minor axis D90 / D10 of 2.1 or less, and (B) a clay mineral, and which does not contain plastic microbeads or volatile cyclic silicones.

[0009] In the oil-based or emulsion makeup cosmetic, the metal oxide particles are preferably contained in an amount of 2 to 30% by mass relative to 100% by mass of the total mass of the makeup cosmetic, and the metal oxide particles are preferably coated metal oxide particles coated with a hydrophobic treatment agent selected from the group consisting of fatty acid soap, alkoxysilane, dimethicone, methylhydrogensiloxane, acylamino acid, and sugar fatty acid ester.

[0010] In the oil-based or emulsion makeup cosmetic, the clay mineral is preferably contained in an amount of 0.25 to 5% relative to 100% of the total mass of the makeup cosmetic.

[0011] The oil-based or emulsion makeup cosmetic preferably further comprises (C) an iron oxide selected from yellow, red, or black iron oxides.

[0012] The oil-based or emulsion makeup cosmetic is preferably an oil-based or water-in-oil makeup cosmetic.

[0013] The oil-based or emulsion makeup cosmetic preferably further contains a white pigment titanium oxide, and the white pigment titanium oxide is contained in an amount of 5% by mass or less relative to 100% by total mass of the makeup cosmetic. [Effects of the Invention]

[0014] According to the present invention, it is possible to provide an oil-based or emulsion makeup cosmetic that does not contain metal oxides with small particle sizes that pose safety concerns, microplastics that are difficult to decompose in the environment, or volatile cyclic silicones, and that has excellent stability over time, good spreadability, uniform finish, and matte texture on the skin. DETAILED DESCRIPTION OF THE INVENTION

[0015] According to one embodiment, the present invention relates to an oil-based or emulsion makeup cosmetic. The makeup cosmetic of the present invention refers to a cosmetic that aesthetically conditions the surface of keratin, such as skin or hair, and is defined as a cosmetic that adjusts light reflection and color using a metal oxide powder. Furthermore, the oil-based cosmetic refers to a cosmetic that is liquid, paste-like, or solid at room temperature (1 to 30°C) and has a powder base dispersed in an oil-based base made of fats, oils, waxes, or the like. The emulsion cosmetic refers to a cosmetic that is liquid, cream-like, or solid at room temperature and may be either water-in-oil (W / O) or oil-in-water (O / W) type, and is defined as an emulsion in which an aqueous component and an oil-based component are emulsified with an emulsifier. Hereinafter, in this specification, the terms oil-based or emulsion makeup cosmetic may be omitted and simply referred to as "cosmetics."

[0016] The cosmetic preparation according to the present invention contains (A) and (B) described below as essential components, and may further contain optional components. The cosmetic preparation according to the present invention does not contain either plastic microbeads or volatile cyclic silicones.

[0017] "Microplastic beads (MPB)" is narrowly defined as "synthetic, water-insoluble, solid plastic particles less than 5 mm in size that are intentionally incorporated into personal care products for the purposes of exfoliation and cleansing." In this specification, "MPB" refers not only to MPB in the narrow sense, but also to solid, organic synthetic polymer spherical particles less than 5 mm in size that have traditionally been incorporated into cosmetics to improve their usability, such as powders and fibers of nylon, acrylic esters, polyethylene, polystyrene, polyethylene terephthalate, polyurethane, organopolysiloxane, and partially crosslinked organopolysiloxane. Naturally occurring polymers such as cellulose and inorganic polymers such as silica do not fall under the category of MPB.

[0018] Volatile cyclic silicones are cyclic molecules that do not occur in nature and have a cyclic Si-O skeleton. Cyclic silicones are also known as cyclomethicones. Volatile cyclic silicones not included in the cosmetic preparations of the present invention are cyclic compounds in which the number of silicon atoms constituting the siloxane skeleton is 3 or more and 6 or less. Specific examples include hexamethylcyclotrisiloxane, octamethyltetracyclosiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and tetradecamethylcycloheptasiloxane. However, all volatile cyclic silicones that meet the above definition of silicon number are not included in the cosmetic preparations of the present invention. Commercially available products include, for example, Execol D-5 (manufactured by Shin-Etsu Chemical Co., Ltd.), SH245, and DC345 (all manufactured by Dow-Toray Industries, Inc.) for decamethylcyclopentasiloxane, and DC246 (manufactured by Dow Corning Toray Silicones, Inc.) for dodecamethylcyclohexasiloxane.

[0019] Furthermore, it is preferable that the cosmetic preparation according to the present invention contains 50% by mass or less of particles with a short diameter of 100 nm or less. The term "particles" here refers to the essential component A, which will be described later, and all particle components that may be optionally included. This is to avoid nanoparticles and ensure safety for living organisms, even if optional fine particles are included in addition to component A. More specifically, when particles with a short diameter of 60 nm or less are included, it is preferable that the maximum content is 5% by mass, and more preferably less than 1% by mass.

[0020] Each component will be described below.

[0021] (A) Metal oxide particles having a minor axis D50 of 90 to 140 nm and a minor axis D90 / D10 ratio of 2.1 or less Component (A) is a metal oxide particle group having a predetermined particle size and particle size distribution, and is white under visible light (wavelength 380 nm to 780 nm). Specifically, the metal oxide particle group has a median minor diameter (D50) of 90 to 140 nm and a minor diameter D90 / D10 ratio of 2.1 or less. D10 refers to the minor diameter at the 10% cumulative point from the fine particle side of the cumulative particle size distribution of the metal oxide particle group. D90 refers to the minor diameter at the 90% cumulative point from the fine particle side of the cumulative particle size distribution of the metal oxide particle group. In this specification, unless otherwise specified as the major diameter, D10, D50, or D90 refers to the minor diameter value. Furthermore, in this specification, metal oxide particle groups that satisfy the conditions of component (A) are referred to as "metal oxide fine particles." The shape of the metal oxide particles is not particularly limited, but may be, for example, round, spindle-shaped, spherical, etc., and the major axis may be approximately three times or less the minor axis. Therefore, the major axis and minor axis may be almost the same.

[0022] The metal oxide microparticles according to the present invention are advantageous in that, when incorporated into cosmetics, they maintain UV protection efficacy while posing little safety concerns and can impart a matte finish without imparting an unnatural gloss. If the D50 is less than 90 nm, the cosmetic contains a large number of ultrafine particles with a particle size of 60 nm or less, raising concerns about safety for the human body. In addition, the cosmetic contains a large number of ultrafine particles, which can impart an unnatural gloss, a poor matte finish, and a tendency toward unevenness. If the D50 is greater than 140 nm but less than 200 nm, the cosmetic is also likely to be uneven and have reduced stability. The minor axis D50 is preferably 95 to 130 nm, and more preferably 100 to 115 nm. The minor axis D90 / D10 is preferably 2.1 or less, more preferably 1.8 or less, and even more preferably 1.4 or less.

[0023] The compound constituting the metal oxide fine particles that are white under visible light may be, for example, titanium oxide (TiO), zinc oxide (ZnO), aluminum oxide (AlO), magnesium oxide (MgO), and / or cerium oxide (CeO). In particular, TiO, ZnO, or a mixture thereof is preferred. Iron oxide does not fall under the category of metal oxides of Component A.

[0024] The metal oxide microparticles may be uncoated particles composed essentially of metal oxide. Alternatively, the metal oxide microparticles may be particles coated with a surface treatment agent. The surface treatment agent may be an inorganic compound such as aluminum hydroxide, or a hydrophobic treatment agent containing an organic component. Metal oxide microparticles coated with a hydrophobic treatment agent may be advantageously used in oil-based or emulsion cosmetics because they can suppress uneven distribution of oily components in the skin grooves and homogenize the oily film of the cosmetic. The hydrophobic treatment agent may be one or more compounds selected from the group consisting of fatty acid soap, alkoxysilane, dimethicone, methylhydrogensiloxane, acylamino acid, and sugar fatty acid ester. Furthermore, at least a portion of the powder surface, preferably the entire powder surface, can be coated with a surface treatment agent such as a hydrophobic treatment agent.

[0025] Preferred examples of fatty acid soaps, which are a type of hydrophobic treatment agent, include aluminum stearate / hydroxide, aluminum stearate, magnesium stearate, and isopropyl titanium triisostearate. Preferred examples of alkoxysilanes include triethoxycaprylylsilane and trihexylsilane. Preferred examples of sugar fatty acid esters include dextrin stearate and dextrin isostearate, but are not limited to these.

[0026] The acylamino acid is preferably selected from N-acylamino acids or salts thereof having a hydrocarbon of 8 to 22 carbon atoms, and fatty acids or salts thereof, specific examples of which include the following: Examples of N-acylamino acids or salts thereof include lauroyl lysine and N-acyl glutamates (e.g., monosodium N-lauroyl glutamate, disodium N-stearoyl glutamate, monosodium N-myristoyl-L-glutamate, etc.). Among these, stearoyl glutamate and cocoyl glutamate are preferred. Examples of fatty acids include palmitic acid, isostearic acid, stearic acid, lauric acid, myristic acid, behenic acid, oleic acid, rosin acid, and 12-hydroxystearic acid.

[0027] The content of the metal oxide fine particles of component (A), which are either uncoated or coated with a surface treatment agent, is preferably 2 to 30% by mass, relative to the total mass of the cosmetic being 100%. If the content of metal oxide fine particles is less than 2% by mass, the uniformity and matte finish of the cosmetic may be reduced. If the content exceeds 30% by mass, the stability of the cosmetic may be low and the cosmetic may be heavy (difficult to spread) upon application. The content of metal oxide fine particles is more preferably 5.5 to 24% by mass. By setting the content within this range, the stability, spreadability, matte finish, and uniformity are improved. The content of metal oxide fine particles is even more preferably 11 to 20% by mass. By setting the content within this range, the cosmetic can be obtained with the best balance of stability, spreadability, matte finish, and uniformity.

[0028] In a preferred embodiment, the metal oxide microparticles may contain a mixture of TiO2 and ZnO. The D50 and D10 / D90 values ​​of the mixture may be within the above-mentioned ranges. In this case, the preferred blending amounts are within the above-mentioned ranges, and the blending ratio (mass ratio) of TiO2 to ZnO is not particularly limited and can be any ratio. For example, the mass ratio of TiO2 to ZnO can be, for example, 1:9 to 9:1, preferably 1:4 to 2:1, but is not limited to this range.

[0029] (B) Clay minerals Clay minerals are included as essential components of cosmetics, stabilizing the cosmetics and providing a desirable matte finish. Clay minerals refer to a type of colloidal hydrous aluminum silicate with a three-layer structure, and can be compounds represented by the following general formula (1) or modified forms thereof: (X,Y) a (Si,Al)O 10 (OH) 2-b (F) b Z 1 / 3 nH2O (1) During the ceremony, X is one or more selected from Al, Fe(III), Mn(III), Cr(III), or may be absent; Y is one or more selected from Mg, Fe(II), Ni, Zn, and Li, or may be absent; Z is one or more selected from K, Na, Ca, or may be absent; a is 2 to 3, and b is 0 to 2. In formula (1), (X, Y) means that X and Y are mixed in the mineral crystal. Therefore, (Si, Al) similarly means that Si and Al are mixed in the mineral crystal.

[0030] Clay minerals include natural or synthetic montmorillonites (also known as smectites), such as montmorillonite, saponite, and hectorite, as well as synthetic micas known as sodium silicic mica and sodium or lithium taeniolite. Commercially available products include, but are not limited to, Kunipia, Sumecton (manufactured by Kunimine Industries Co., Ltd.), Wenger (manufactured by Japan Organic Clay Co., Ltd.), Laponite (manufactured by BYK Japan Co., Ltd.), and Daimonite (manufactured by Topy Industries Co., Ltd.).

[0031] In this specification, organically modified clay minerals obtained by cation exchange with a quaternary ammonium salt-type cationic surfactant are also referred to as clay minerals. For example, clay minerals obtained by modifying the compound represented by the above formula with a quaternary ammonium salt-type cationic surfactant are representative, but not limited to these. Specific examples include organically modified smectites such as dimethyl distearyl ammonium hectorite (disteardimonium hectorite), benzyl dimethyl stearyl ammonium hectorite, dimethyl distearyl ammonium bentonite, and distearyl dimethyl ammonium chloride-treated magnesium aluminum silicate. Commercially available products include Benton 27 and Benton 38 (disteardimonium hectorite, manufactured by Elementis Japan Co., Ltd.), Esben W (quaternium-18 bentonite, manufactured by Nippon Organic Clay Co., Ltd.), and Esben WV (quaternium-90 bentonite, manufactured by Nippon Organic Clay Co., Ltd.). Among these, dimethyl alkyl ammonium hectorite, quaternium-18 bentonite, and quaternium-90 bentonite are preferred. In oil-based or W / O emulsion cosmetics, it is preferable to use an organically modified clay mineral, while in O / W emulsion cosmetics, it is preferable to use a clay mineral that is not organically modified.

[0032] The clay mineral may be one type, or a mixture of two or more types. In oil-based or W / O emulsion cosmetics, the content of the clay mineral in component (B) is preferably 0.25 to 5 mass%, assuming the total mass of the cosmetic to be 100%. If the clay mineral content is less than 0.25 mass%, the uniformity and stability of the cosmetic may be poor. If it exceeds 5 mass%, the uniformity and stability of the cosmetic may also be reduced, and the matte finish of the cosmetic may also be reduced. The clay mineral content is more preferably 0.3 to 3 mass%. By setting the clay mineral content within this range, the uniformity, stability, and matte finish of the cosmetic upon application are improved. The clay mineral content is even more preferably 0.6 to 2.5 mass%. By setting the clay mineral content within this range, a cosmetic that is well-balanced in all aspects of the cosmetic's uniformity, stability, and matte finish upon application can be obtained.

[0033] In an O / W emulsion cosmetic, the content of the clay mineral in component (B) is preferably 0.6 to 5% by mass, assuming the total mass of the cosmetic to be 100%. If the clay mineral content is less than 0.6% by mass, the uniformity and stability of the cosmetic may be poor. If it exceeds 5% by mass, the uniformity and stability of the cosmetic may also be reduced, and the matte finish of the cosmetic may also be reduced. The clay mineral content is more preferably 0.7 to 3% by mass. By setting the content within this range, the uniformity, stability, and matte finish of the cosmetic upon application are improved. The clay mineral content is even more preferably 0.8 to 2.5% by mass. By setting the content within this range, a cosmetic that is well-balanced in terms of uniformity, stability, and matte finish upon application can be obtained.

[0034] By including these essential components (A) and (B), the cosmetic of the present invention can be obtained, and in particular, a cosmetic that has good stability and spreadability, and an excellent matte finish with moderately reduced gloss can be obtained without using components with particle sizes of 60 nm or less that are hazardous to the human body, microplastic beads that have a negative impact on the environment, or volatile cyclic silicones. Below, components that may be optionally included are described.

[0035] (C) Iron oxide Iron oxide is a powder component that functions as a coloring component in cosmetics. The iron oxide can be one or more selected from yellow iron oxide (iron oxide yellow), red iron oxide (iron oxide red), and black iron oxide (iron oxide black). These three types of iron oxide can be used in combination by varying the quantitative ratio depending on the desired color development of the cosmetic. The iron oxide may be uncoated particles essentially composed of iron oxide. Alternatively, the iron oxide may be coated iron oxide particles coated with a surface treatment agent. The surface treatment of the iron oxide can be performed primarily for the purposes of uniform application of the cosmetic and stabilization of the formulation. The coated iron oxide may be iron oxide coated with a hydrophobic treatment agent, similar to the metal oxide fine particles of component (A). Iron oxides coated or uncoated with a surface treatment agent can have an average minor axis of, for example, 1,000 nm or less and more than 60 nm. However, as long as they function as a coloring component, they are not limited to those with a specific minor axis. When component (C) is included, its content can be, for example, 13% by mass or less, assuming the total mass of the cosmetic to be 100%. If the iron oxide content exceeds 13% by mass, the stability may be reduced and the color may be too dark, impairing the makeup properties. The iron oxide content can be, for example, 0.3 to 10% by mass, and preferably 0.5 to 6% by mass. Iron oxide is an optional component, and may be omitted in cosmetic lotions, emulsions, creams, foundations, lipsticks, etc., if it would aesthetically impair the appearance or application of the cosmetic.

[0036] (D) Volatile oil Volatile oils are liquid components that facilitate the spread of cosmetics during application and, since at least a portion of them evaporate after application, achieve a finish with less oily gloss. Examples of volatile oils that can be used include volatile acyclic silicone oils, volatile hydrocarbon oils, volatile ester oils, and combinations thereof. Volatile cyclic silicone oils are not included in the volatile oils (D). Specific examples of compounds that can be used include, but are not limited to, one or more selected from dimethylpolysiloxane, methyl trimethicone, isododecane, undecane, tridecane coconut oil methyl ester, coconut oil ethyl ester, palm oil methyl ester, palm oil ethyl ester, palm oil butyl ester, butyl acetate, and ethyl acetate. When component (D) is included, its content can be, for example, 60% by mass or less, based on the total mass of the cosmetic composition (100%). Containing more than 60% by mass of volatile oil may reduce the stability of the cosmetic composition. The content of the volatile oil can be, for example, 2 to 40% by mass, and preferably 8 to 20% by mass. The volatile oil is an optional component, and the desired properties can be exhibited without including volatile oil in the following cases: when the product is sufficiently easy to spread in relation to the form and other components, when the amount of powder is large and the glossiness is small, when the glossiness is small when the product is solidified with wax or the like, or when the stability of the dosage form would be reduced by adding a volatile component because the product is not filled in a sealed container.

[0037] (E) White pigment titanium dioxide White pigment titanium oxide functions as a white colorant in cosmetics. The white pigment titanium oxide of component (E) may be titanium oxide having a larger minor axis D50 than the metal oxide fine particles of component (A), with a minor axis D90 / D10 ratio of more than 2.1; more specifically, it may be titanium oxide having a minor axis D50 of, for example, 200 nm or more, preferably 200 to 300 nm. Like the metal oxide fine particles of component (A), the white pigment titanium oxide may also be surface-coated titanium oxide, or titanium oxide surface-coated with a hydrophobic treatment agent. The shape of the white pigment titanium oxide is not particularly limited, and may be, for example, spherical, spindle-shaped, blocky, or needle-shaped.

[0038] When component (E) is included, its content can be, for example, 11% by mass or less, preferably 5% by mass or less, based on the total mass of the cosmetic product as 100%. If the white pigment titanium dioxide content exceeds 11% by mass, the cosmetic product may become too white, impairing makeup properties and causing the titanium dioxide to settle into uneven skin surfaces, resulting in an uneven finish. The content of the white pigment titanium dioxide is more preferably 0.3 to 5% by mass, more preferably 0.5 to 2% by mass. In addition to the above, the content of the white pigment titanium dioxide in component (E) is preferably determined so that the total amount of components (A) and (E) is 30% by mass or less, based on the total mass of the cosmetic product as 100%, and more preferably the total amount of components (A) and (E) is 25% by mass or less. If the total amount of components (A) and (E) is greater than 30% by mass, safety concerns may arise regardless of particle size. Furthermore, the cosmetic coating may become too thick, resulting in an unnatural appearance. In some cases, it may be preferable for the mass ratio of component (A) to component (E) to be (A):(E) = 50:1 to 1.5:1. White pigment titanium dioxide is an optional component, and may not be included in cosmetics such as lotions, milky lotions, creams, foundations, and lipsticks if it impairs the aesthetic appearance or application of the cosmetic, or if 30% by mass of component (A) is included. Titanium dioxide-coated mica used as a pearlescent pigment does not qualify as white pigment titanium dioxide.

[0039] An example of other optional components is a powder that does not fall under components (A), (B), (C), or (E). Such powders can be appropriately blended into cosmetics for the purposes of, for example, imparting color tone, achieving a makeup effect, or adjusting the texture. Such powders are not particularly limited as long as they are powders typically used in cosmetics. Examples include, but are not limited to, talc, sericite, mica, kaolin, silicic anhydride, barium sulfate, inorganic powders having an average minor axis of 200 nm or more and less than 1000 nm, such as zinc oxide, cerium oxide, magnesium oxide, aluminum oxide, and boron nitride, polymer powders such as silk and cellulose, organic pigments, and composite powders thereof. In some embodiments, surface-coated or uncoated amorphous silica may be added for purposes such as lightening spreadability, eliminating stickiness, scattering light to achieve a blurring effect, and enhancing UV protection. The amorphous silica preferably has an oil absorption of 150 ml / 100 g or less, more preferably 70 ml / 100 g or less. These optional powders may be surface-treated. Furthermore, it is preferred that none of these optional powders contain particles with a minor axis of 60 nm or less.

[0040] Other examples of optional components include other components commonly used in cosmetics, quasi-drugs, pharmaceutical compositions, etc., such as oils, dyes, polymeric compounds, fragrances, surfactants, antioxidants, preservatives, moisturizers, polyhydric alcohols, lower alcohols, sugars, ultraviolet absorbers, whitening agents, skin activators, blood circulation promoters, antiseborrheic agents, anti-inflammatory agents, astringents, and cooling agents. Liquid optional components can include, for example, non-volatile liquid oils. Liquid oils can be included as a base material or to impart emollient properties. The liquid oil may be a non-volatile oil that is liquid at 25°C, and is not particularly limited to, for example, non-volatile hydrocarbon oils such as liquid paraffin, squalane, and olefin oligomers (excluding volatile ones); ester oils such as 2-ethylhexanoic acid triglyceride, cetyl 2-ethylhexanoate, pentaerythritol 2-ethylhexanoate, trimethylolpropane 2-ethylhexanoate, 2-ethylhexyl palmitate, isocetyl isononanoate, isopropyl myristate, cetyl 2-ethylhexanoate, diethyl sebacate, and diethyl adipate; and natural vegetable oils such as jojoba oil, olive oil, macadamia nut oil, cottonseed oil, tea seed oil, safflower oil, and rice bran oil.

[0041] Next, the method of manufacturing the cosmetic composition according to the present invention varies depending on the dosage form, and the cosmetic composition can be manufactured by mixing the ingredients according to a general manufacturing method for each dosage form, as detailed in the Examples.

[0042] Specific examples of oil-based or emulsion makeup cosmetics according to the present invention include, but are not limited to, powder-containing lotions, emulsions, creams, foundations, primers, bases, concealers, blushes, eye shadows, eyeliners, mascaras, eyebrow pencils, lipsticks, and nail polishes. Examples of foundations include water-in-oil emulsion liquid foundations, oil-in-water emulsion liquid foundations, water-in-oil emulsion cream foundations, oil-in-water emulsion cream foundations, oil-based cream foundations, water-in-oil emulsion stick foundations, and oil-based stick foundations. Examples of bases include water-in-oil emulsion cream bases and oil-in-water emulsion cream bases. Examples of concealers include oil-based solid concealers. Examples of creams include lip balms, sunscreen creams, moisturizing creams, whitening creams, and beauty creams. These may also function as sunscreen cosmetics. [Example]

[0043] The present invention will be described in more detail below with reference to examples. However, the present invention is not limited to the following examples. Cosmetics (water-in-oil emulsion foundations) were prepared based on the compositions of the examples and comparative examples shown in the tables below, and their properties were evaluated.

[0044] 1. Metal oxide fine particles Metal oxide particles that satisfy the conditions of component A, namely titanium oxide (D50 = 109 nm) (A1), titanium oxide (D50 = 112 nm) (A2), and titanium oxide (D50 = 128 nm) (A3) (all spindle-shaped), and these titanium oxides surface-coated with a hydrophobic treatment agent were purchased from Titan Kogyo Co., Ltd. Similarly, zinc oxide (D50 = 110 nm, D90 / D10 = 1.93, block-shaped) (A4) and zinc oxide surface-coated with a hydrophobic treatment agent were provided by Teika Corporation.

[0045] 2. Preparation of water-in-oil emulsion foundation The water-in-oil emulsion foundation was prepared by mixing oily components, optionally containing component D, from among the components listed in Tables 1 to 5 below, in a disperser, and then adding and dispersing the powder containing components A, B, and optionally C prepared by the method above to the resulting mixture, followed by adding an aqueous phase prepared by dissolving water-soluble components in water, and emulsifying by stirring.

[0046] 3. Evaluation The evaluation methods and judging criteria for each cosmetic product were as follows. <Easy spread, even finish, matte finish on skin (lack of shine)> "Evaluation Method" Each sample from the Examples and Comparative Examples was actually used by a panel of 10 experts, who evaluated it based on three criteria: ease of spread, uniformity of finish, and matte skin feel (lack of shine). Ease of spread refers to the ability to spread the cosmetic with little resistance when applied to the skin with the fingers, with lower resistance representing a higher rating. Uniformity of finish refers to a state in which the powder component is applied to the skin surface with a uniform thickness, does not sink into the skin texture, and the more uniform the color and thickness of the cosmetic film, the higher the rating. Matte skin feel (lack of shine) refers to the state of the skin surface after application of the cosmetic, where light is diffusely reflected and the glossiness is reduced. A lack of gloss and a fine appearance of the skin texture were given a high rating. For each category, a sample rated high by 8 or more out of 10 experts was given an A rating, a sample rated high by 5 to 7 out of 10 experts was given a B rating, and a sample rated high by 3 to 4 out of 10 experts was given a C rating. Samples that were rated high by 2 or less out of 10 people were given a D rating.

[0047] <Stability over time at 40°C> "Evaluation Method" The obtained cosmetic was left to stand at 40°C, and the condition after 4, 6 and 8 weeks was visually observed and evaluated according to the following criteria. "Evaluation Criteria" A: No separation was observed after 8 weeks B: No separation was observed after 6 weeks, but some oil separation was observed after 8 weeks C: No separation was observed after 4 weeks, but some oil separation was observed after 6 weeks. D: Some oil had separated after 4 weeks

[0048] <in vitro SPF> "Evaluation Method" Each sample was applied to a PMMA plate (Helioplate HD6 manufactured by Herioscreen) at 2 mg / cm 2 The coating was applied with a finger for 60 seconds and then allowed to dry for 15 minutes to form a coating film. Using an uncoated plate as a control, the absorbance (290-450 nm) of the coating film was measured using a Labsphere UV2000S analyzer, and the in vitro SPF (Sun Protection Factor) value was calculated from the obtained measurement data.

[0049] 4.Results The compositions and evaluation results of the Examples and Comparative Examples are shown in Tables 1 to 5 below. The numerical values ​​for the formulations in the tables all represent mass % when the total mass of the cosmetic is 100%. "-" indicates that the corresponding ingredient is not included. In Tables 1 and 2, the value in parentheses after the titanium oxide name indicates the D50 value. In the Examples and Comparative Examples below, *1 indicates that the minor axis of the particle is D50 = 109 nm, and D90 / D10 = 1.25; *2 indicates that the minor axis of the titanium oxide particles is D50 = 270 nm, D90 / D10 = 4.20, D10 = 156, and D90 = 655; and *3 indicates that the minor axis of the A4 zinc oxide particles is D50 = 110 nm, and D90 / D10 = 1.93.

[0050] [Table 1]

[0051] [Table 2]

[0052] [Table 3]

[0053] [Table 4]

[0054] [Table 5]

[0055] As shown in Tables 1 to 5, the cosmetics according to the present invention do not contain microplastic beads or volatile cyclic silicones, and by minimizing the content of metal oxide particles with a short diameter of 60 nm or less, they were able to achieve a uniform finish, good spreadability, and lack of gloss, similar to conventional compositions containing microplastic beads and volatile cyclic silicones. Example 4 contains titanium oxide particles with a D50 of 28 nm, which are smaller in diameter than Component A. However, considering the existence of a particle size distribution, particles with a short diameter of 60 nm or less account for less than 5% by mass. Furthermore, the other examples do not contain particles with a short diameter smaller than Component A, and it can be said that particles with a short diameter of 60 nm or less are substantially absent or less than 1%. Furthermore, cosmetics were also obtained that were able to achieve particularly high SPF values ​​due to the UV scattering effect without the use of UV absorbers.

[0056] 5. Prescription examples Examples of the formulation of the cosmetic of the present invention are given below. The cosmetic of each formulation example was prepared as follows. <Manufacturing method> (Prescription Examples 1, 3, 5, 6, 13) The cosmetic compositions shown in the examples were prepared by dissolving and mixing the aqueous ingredients in water using a disperser, heating to 70°C, adding a mixture of oily ingredients and powder that had been separately heated to 80°C, and emulsifying by stirring.

[0057] (Prescription Examples 2 and 4) Cosmetics having the compositions shown in the examples were prepared by mixing oily ingredients in a disperser, adding powder to the resulting mixture, dispersing it, and then adding an aqueous phase component prepared by dissolving water-soluble ingredients in water, and emulsifying the mixture by stirring.

[0058] (Prescription Example 7) The cosmetic composition shown in the example was prepared by adding powder to an oil phase that had been heated to 80°C or higher and dissolved, and then dispersing the powder in the oil phase. To this mixture, an aqueous phase component that had been prepared by dissolving and mixing the aqueous component in water and heating it to 80°C or higher was added, and the mixture was emulsified by stirring.

[0059] (Prescription Examples 8-12) Cosmetics having the compositions shown in the examples were prepared by heating the oily ingredients to 80°C or higher, mixing and dissolving them in a disperser, dispersing the powder, filling the mixture into a container or mold, and cooling it.

[0060] None of the cosmetics in the following Formulation Examples 1 to 13 contain fine particles with a D50 smaller than that of ingredient A. All of the cosmetics in the Formulation Examples are able to solve the problems of the present invention without using conventionally used ingredients, and are cosmetics that provide a uniform finish, are highly stable, and have an in vitro SPF of 15 or more.

[0061] Formulation example 1: Oil-in-water emulsion liquid foundation Titanium dioxide A1 (ingredient A) 5.6 (Dimethicone coated, D50=109nm) Bentonite (ingredient B) 0.6 Dimethicone-coated iron oxide yellow (ingredient C) 0.5 Dimethicone-coated iron oxide red (ingredient C) 0.1 Amorphous silica (oil absorption 60ml / 100g) 5 Lauroyl Lysine Coated Saccharomyces Culture 0.9 (C13-15) Alkane (Volatile) (Component D) 3 Alkyl benzoate (C12-15) 5 Dicaprylyl Carbonate 2 Squalane 1 Polysilicone-15 7 Ethylhexyl salicylate 5 Diethylaminohydroxybenzoylhexyl benzoate 3 Bis-ethylhexyloxyphenol methoxyphenyl triazine 3 Behenyl Alcohol 2 Stearyl alcohol 0.7 Stearic acid 1.5 Stearyl stearate 1 Glyceryl Stearate 1.5 PEG-10 Stearate 0.8 Glyceryl stearate (SE) 0.2 PEG-60 Glyceryl Isostearate 0.7 water residue Pentylene Glycol 2 Ethanol 5 BG (butylene glycol) 1 Phenylbenzimidazole sulfonic acid 2.7 Sodium hydroxide 0.8 Glycerin 0.5 Polyglyceryl-2 Triisostearate 0.5 Sclerotium Gum 0.15 Xanthan gum 0.2 Citric acid 0.15 Sodium citrate 0.05

[0062] Formulation example 2: Water-in-oil cream base Titanium dioxide A2 (ingredient A) 11 (Coated with stearic acid and aluminum hydroxide, D50=112nm) Zinc Oxide A4 (Component A) 18 (Triethoxycaprylylsilane coating, D50=110nm) Disteardimonium hectorite (ingredient B) 0.5 Quaternium-18 Hectorite (Component B) 0.4 White pigment titanium dioxide (ingredient E) 1 (Stearic acid-aluminum hydroxide coating, D50=250nm, D90=390nm, D10=160nm) Aluminum starch octenyl succinate 4 Lauroyl Lysine Coated Saccharomyces Culture 0.5 Methyl trimethicone (volatile) 17 (C13-15) Alkane (Volatile) (Component D) 3 Dimethicone (non-volatile) 5 Alkyl benzoate (C12-15) 7 Polysilicone-15 9 Ethylhexyl salicylate 4.5 Dicaprylyl Carbonate 3 Bis-ethylhexyloxyphenol methoxyphenyl triazine 1 Diethylaminohydroxybenzoylhexyl benzoate 4 Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone 2 Tocopherol 0.1 PEG-9 Polydimethylsiloxyethyl Dimethicone 0.2 Polyglyceryl-3 Dimer Dilinoleate Diisostearate 0.5 Polyhydroxystearic acid 0.4 Isostearic acid 0.3 Sorbitan sesquiisostearate 0.5 Trimethylsiloxysilicate 1.5 water residue Ethanol 0.5 Glycerin 0.5 Magnesium sulfate 0.1 Sodium hyaluronate 0.1

[0063] Formulation example 3: Oil-in-water cream foundation Titanium dioxide A1 (ingredient A) 11 (Dimethicone coated, D50=109nm) Bentonite (ingredient B) 0.6 Zinc oxide A4 (ingredient A) 10 (Dimethicone coated, D50=110nm) Dimethicone-coated iron oxide yellow (ingredient C) 0.8 Dimethicone-coated iron oxide red (ingredient C) 0.15 Dimethicone-coated iron oxide black (ingredient C) 0.07 Mica 4 Isotridecyl isononanoate 6 Bis-ethylhexyloxyphenol methoxyphenyl triazine 3 Polyglyceryl-3 Disiloxane Dimethicone 3 Tocopherol 0.15 Sorbitan sesquiisostearate 0.7 Polyglyceryl-2 Triisostearate 2.8 water residue (Sodium acrylate / sodium acryloyldimethyltaurate) Copolymer 0.39 (PEG-240 / Decyltetradeceth-20 / HDI) copolymer 0.95 BG 3 Glycerin 4 Phenoxyethanol 0.5 Polysorbate 80 0.21 PEG-60 Hydrogenated Castor Oil 0.8 Pentylene glycol 0.19 Sodium hyaluronate 0.1

[0064] Formulation example 4: Water-in-oil cream foundation Titanium dioxide A1 (ingredient A) 14 (Isostearic acid coating, D50=109nm) Disteardimonium hectorite (ingredient B) 0.5 White pigment titanium dioxide (ingredient E) 2 (Stearic acid-aluminum hydroxide coating, D50=250nm, D90=390nm, D10=160nm) Dimethicone-coated iron oxide yellow (ingredient C) 2.5 Dimethicone-coated iron oxide red (ingredient C) 0.55 Dimethicone-coated iron oxide black (ingredient C) 0.1 Dimethicone Coated Mica 4 Magnesium stearate coated amorphous silica (oil absorption 60mL / 100g) 1.2 Dimethicone (volatile) (ingredient D) 8 Diphenylsiloxyphenyl Trimethicone 0.75 Cetyl PEG / PPG-10 / 1 Dimethicone 4 Trimethylsiloxysilicate 4 Diisostearyl Malate 3 (Dimethicone / vinyl dimethicone) crosspolymer 0.6 Polyglyceryl-2 Diisostearate 1.5 Neopentyl glycol diethylhexanoate 1.5 water residue Betaine 1 Glycerin 3.49 BG 4 Pentylene glycol 1.5 Diglycerin 1 Sorbitol 1 Magnesium sulfate 1 Phenoxyethanol 0.3 Sodium hyaluronate 0.01

[0065] Formulation example 5: Oil-in-water cream base Titanium dioxide A1 (ingredient A) 6 (Aluminum hydroxide coating, D50=109nm) Silicate (Al / Mg) (Component B) 0.4 Triethoxycaprylylsilane-coated iron oxide yellow (ingredient C) 0.06 Triethoxycaprylylsilane-coated iron oxide red (ingredient C) 0.02 Triethoxycaprylylsilane-coated iron oxide black (ingredient C) 0.01 Iron oxide coated titanium mica 1 Polyacrylate Crosspolymer-6 0.7 Cellulose acetate 4 Methyl trimethicone (volatile) (ingredient D) 2.5 Polyglyceryl-2,3-triisostearate Dicaprylyl Carbonate 3 Squalane 1 Sorbitan isostearate 0.2 Hydrogenated lecithin 0.5 Ceramide 0.2 Hydrogenated Polydecene 9.5 water residue (Sodium acrylate / sodium acryloyldimethyltaurate) Copolymer 1.1 Ethylhexylglycerin 0.1 DPG 4.5 Glycerin 5 Isopentyldiol 1 Pentylene glycol 1 Polysorbate 80 1.2 Sodium citrate 0.2 Citric acid 0.03

[0066] Formulation example 6: Oil-in-water cream foundation Titanium dioxide A2 (ingredient A) 13 (Aluminum hydroxide coating, D50=112nm) Bentonite (ingredient B) 2 White pigment titanium dioxide (ingredient E) 1.4 (D50=250nm, D90=390nm, D10=160nm) Silica-coated iron oxide yellow (ingredient C) 1 Silica-coated iron oxide red (ingredient C) 0.3 Silica-coated iron oxide black (ingredient C) 0.1 Titanium dioxide with red interference color 1.1 Mica 2 Alumina 0.5 Amorphous silica (oil absorption 60ml / 100g) 2 (C9-12) alkane (volatile) (component D) 4 Glyceryl stearate 0.7 Isostearic acid 0.3 Stearic acid 1.4 Behenyl Alcohol 1.5 Hydrogenated Cocoglycerides 2 Sucrose distearate 0.3 Sucrose Pentaerucate 0.5 Polyglyceryl-10 Laurate 2.5 Polyglyceryl-2 Diisostearate 1.2 Squalane 5 water residue BG 3 Propanediol 4.4 Glycerin 5 Phenoxyethanol 0.5 Diglycerin 2.5 Xanthan gum 0.2 Sodium citrate 0.1 Tocopherol 0.05 Sodium hydroxide 0.1 Glycosyltrehalose 0.1 Arginine 0.2 Sodium hyaluronate 0.05

[0067] Formulation example 7: Water-in-oil emulsion stick foundation Titanium dioxide A2 (ingredient A) 12 (Dimethicone coated, D50=120nm) Quaternium-18 Hectorite (Component B) 0.5 White pigment titanium dioxide (ingredient E) 3 (Dimethicone / aluminum hydroxide coating, D50=250nm, D90=390nm, D10=160nm) Dimethicone-coated iron oxide yellow (ingredient C) 1.4 Dimethicone-coated iron oxide red (ingredient C) 0.3 Dimethicone-coated iron oxide black (ingredient C) 0.1 Dimethicone Coated Mica 3 Dimethicone-coated amorphous silica (oil absorption 60ml / 100g) 3 Methyl trimethicone (volatile) (ingredient D) 8 Polyoxyethylene-methylpolysiloxane copolymer 0.5 Dimethicone (non-volatile) 9.5 Cross-linked polyether modified silicone 4.5 Glyceryl tri-2-ethylhexanoate 7.8 Isotridecyl isononanoate 2 Dicaprylyl Carbonate 2 Polysilicone-15 5 Diethylaminohydroxybenzoylhexyl benzoate 2 Ceramide 0.1 Natural Vitamin E 0.1 Fragrance 0.2 Butylparaben 0.1 Paraffin wax 3 Candelilla wax 6.5 water residue Sodium citrate 0.3 1.3 Butylene Glycol 4 Glycerin 1 Hyaluronic acid 0.1 Sodium chloride 0.4 Phenoxyethanol 0.1

[0068] Formulation example 8: Oily stick foundation Titanium dioxide A2 (ingredient A) 12 (Dimethicone coated, D50=112nm) Quaternium-90 Bentonite (Component B) 0.35 Dimethicone-coated iron oxide yellow (ingredient C) 1.9 Dimethicone-coated iron oxide red (ingredient C) 0.6 Dimethicone-coated iron oxide black (ingredient C) 0.3 Dimethicone-coated alumina 3 Dimethicone Coated Synthetic Fluorphlogopite 5 Dimethicone-aluminum hydroxide coated mica 2 White pigment titanium dioxide (ingredient E) 5 (Aluminum hydroxide coating, D50=250nm, D90=390nm, D10=160nm) Amorphous silica (oil absorption 60ml / 100g) 10 Dimethicone (non-volatile) 13.5 Phenyl Trimethicone 11 Squalane 1 Tocopherol 0.1 Olive fruit oil 1 Jojoba seed oil 1 Isotridecyl isononanoate 15 Dicaprylyl Carbonate 5 Triethylhexanoin 3.3 Sorbitan sesquiisostearate 1.5 Sorbeth-30 tetraoleate 0.2 Carnauba wax 0.75 Polyethylene wax 6.5

[0069] Formulation example 9: Oil-based solid concealer Titanium dioxide A2 (ingredient A) 24 (Triethoxycaprylylsilane coating, D50=112nm) Quaternium-18 Bentonite (Component B) 0.7 White pigment titanium dioxide (ingredient E) 1.1 (Triethoxycaprylylsilane coating, D50=250nm, D90=390nm, D10=160nm) Triethoxycaprylylsilane-coated iron oxide yellow (ingredient C) 4.8 Triethoxycaprylylsilane-coated iron oxide red (ingredient C) 1 Triethoxycaprylylsilane-coated iron oxide black (ingredient C) 0.2 Dimethicone-coated synthetic fluorophlogopite 9 Dimethicone-coated amorphous silica (oil absorption 60ml / 100g) 5 Dimethicone Coated Mica 2 Hydrogenated farnesene (volatile) (component D) 4 Hydrogenated Polydecene 12 Diphenylsiloxyphenyl Trimethicone 10 Triethylhexanoin 12 Diisostearyl Malate 2.5 Sorbitan sesquiisostearate 2.5 Phytosteryl / Octyldodecyl Lauroyl Glutamate 1 Sodium acetyl hyaluronate 0.1 Tocopherol 0.1 Polyethylene wax 6 Carnauba wax 0.5 Microcrystalline wax 0.5

[0070] Formulation example 10: Oily cream foundation Titanium dioxide A1 (ingredient A) 8 (Dimethicone coated, D50=109nm) Quaternium-18 Bentonite (Component B) 0.6 White pigment titanium dioxide (ingredient E) 5 (Dimethicone-alumina coating, D50=250nm, D90=390nm, D10=160nm) Dimethicone-coated iron oxide yellow (ingredient C) 2.5 Dimethicone-coated iron oxide red (ingredient C) 0.45 Dimethicone-coated iron oxide black (ingredient C) 0.25 Dimethicone Coated Mica 8 Hydrogen dimethicone coated crystalline cellulose 5 Dimethicone (non-volatile) 10 Isotridecyl isononanoate 18.3 Diphenylsiloxyphenyl Trimethicone 16 (Dimethicone / Vinyl Dimethicone) Crosspolymer 4 Dextrin palmitate 9.5 Polysilicone-15 9 Phytosteryl / Octyldodecyl Lauroyl Glutamate 1.5 Tocopherol 0.1 Sorbitan sesquiisostearate 1.6 Salicylic acid 0.2

[0071] Formulation example 11: Oily cream eyeshadow Titanium dioxide A1 (ingredient A) 4 (Aluminum hydroxide coating, D50=109nm) Silicate (Al / Mg) (Component B) 0.3 Dimethicone (non-volatile) 11 Iron oxide yellow (ingredient C) 0.7 Iron oxide red (ingredient C) 0.5 Iron oxide black (ingredient C) 0.4 White pigment titanium dioxide (ingredient E) 0.5 (Aluminum hydroxide coating, D50=250nm, D90=390nm, D10=160nm) Titanium dioxide coated synthetic phlogopite 12 Iron oxide coated titanium mica 1 Synthetic Fluorphlogopite 24 Mica 3 Diphenylsiloxyphenyl Trimethicone 9 Diphenyl Dimethicone 4.1 Polyglyceryl-2 Triisostearate 9 Triethylhexanoin 12 Meadowfoam oil 0.1 Corn oil 0.1 Squalane 0.5 Sorbitan sesquiisostearate 2.5 Tocopherol 0.1 Ceresin 3 Sunflower Seed Wax 3

[0072] Formulation example 12: Lip balm Titanium dioxide A1 (ingredient A) 7 (Coated with stearic acid and aluminum hydroxide, D50=109nm) Disteardimonium hectorite (ingredient B) 0.35 White pigment titanium dioxide (ingredient E) 0.5 (Aluminum hydroxide coating, D50=250nm, D90=390nm, D10=160nm) Ba sulfate 0.2 Dimethylsilylated silica (16nm) 4 Hydrogenated farnesene (volatile) (component D) 17 Hydrogenated polyisobutene 28.6 Diisostearyl Malate 18 Polysilicone-15 9 Bis-ethylhexyloxyphenol methoxyphenyl triazine 1 Polyglyceryl-2 Triisostearate 9 Phytosteryl / Octyldodecyl Lauroyl Glutamate 4 Yellow 4 0.7 Red 201 0.2 Red 202 0.1 Dimethicone (non-volatile) 0.05 Safflower oil 0.1 Jojoba seed oil 0.1 Tocopherol 0.1 In Formulation Example 12, the total mass of particles with a minor axis of 60 nm or less contained in the cosmetic was less than 5 mass %.

[0073] Formulation example 13: Oil-in-water liquid primer Zinc oxide A4 (ingredient A) 5.0 (Octyltriethoxysilane coating, D50=110nm) Silicate (Al / Mg) (Component B) 0.6 Octyltriethoxysilane-coated iron oxide yellow (component C) 0.15 Octyltriethoxysilane-coated iron oxide red (ingredient C) 0.03 Octyltriethoxysilane-coated iron oxide black (ingredient C) 0.01 Dipropylene Glycol 8 1.3.-Butylene Glycol 2 Glycerin 1 PEG-60 Hydrogenated Castor Oil 1 PEG-40 Hydrogenated Castor Oil 2 Polysilicone-15 9 Alkyl benzoate (C12-15) 7 Ethanol 6 Ethylhexyl salicylate 4.5 Diethylaminohydroxybenzoylhexyl benzoate 4 Amorphous silica (oil absorption 60ml / 100g) 4 Methylenebisbenzotriazolyltetramethylbutylphenol 3 Bis-ethylhexyloxyphenol methoxyphenyl triazine 3 Ethylhexyl Triazone 2.5 (C13-15) Alkane (Volatile) (Component D) 8 Dimethicone (non-volatile) 5 Dicaprylyl Carbonate 1 Trimethylsiloxysilicate 1 Decyl glucoside 0.45 Pentylene Glycol 2 Phenoxyethanol 0.3 Isostearic acid 0.2 Lauroyl Lysine Coated Saccharomyces Culture 0.5 (Acrylates / C10-30 alkyl acrylate) crosspolymer 0.08 Carbomer 0.10 Xanthan gum 0.06 Sodium hydroxide 0.05 Sodium Hyaluronate 0.001 water residue

[0074] It goes without saying that the present invention is not limited in any way by these formulation examples, but is defined by the claims. All blend amounts are expressed in mass % relative to the total mass of the cosmetic.

Claims

1. (A) metal oxide particles selected from titanium oxide and zinc oxide, with a minor axis D50 of 90 to 140 nm and a minor axis D90 / D10 of 2.1 or less, contained in an amount of 2 to 30% by mass relative to 100% by mass of the total mass of the makeup cosmetic, the metal oxide particles being metal oxide particles coated with a surface treatment agent, the surface treatment agent being a hydrophobic treatment agent containing one or more compounds selected from the group consisting of fatty acids, fatty acid soaps, alkoxysilanes, dimethicones, methylhydrogensiloxanes, acylamino acids, and sugar fatty acid esters, or aluminum hydroxide; (B) A clay mineral contained in an amount of 0.2 to 5% by mass relative to 100% by total mass of the makeup cosmetic, the clay mineral being represented by the following general formula (1): (X, Y) a (Si, Al) 4 O 10 (OH) 2-b (F) b Z 1 / 3 ・nH 2 O (1) [In the formula, X is one or more selected from Al, Fe(III), Mn(III), Cr(III), or may be absent; Y is one or more selected from Mg, Fe(II), Ni, Zn, and Li, or may be absent; Z is one or more selected from K, Na, and Ca, or may be absent; a is 2 to 3, and b is 0 to 2. or a clay mineral which is a modified form thereof modified with a quaternary ammonium salt type cationic surfactant. and is free of microplastic beads and volatile cyclic silicones.

2. A makeup cosmetic according to claim 1, wherein the clay mineral is selected from montmorillonite, saponite, hectorite, sodium silicic mica, sodium taeniolite, or lithium taeniolite, or modified forms thereof modified with a quaternary ammonium salt type cationic surfactant.

3. Does not contain iron oxide, or 2. The makeup cosmetic according to claim 1, further comprising (C) an iron oxide selected from yellow iron oxide, red iron oxide, or black iron oxide, wherein the iron oxide is contained in an amount of 10% by mass or less, relative to 100% by total mass of the makeup cosmetic.

4. 2. The makeup cosmetic according to claim 1, which is oil-based or water-in-oil type.

5. Does not contain white pigment titanium dioxide, or 2. The makeup cosmetic according to claim 1, further comprising white pigment titanium oxide, the white pigment titanium oxide being contained in an amount of 5% by mass or less relative to 100% by total mass of the makeup cosmetic.

6. A makeup cosmetic as described in claim 1, wherein the surface treatment agent is selected from stearic acid / aluminum hydroxide, dimethicone, isostearic acid, aluminum hydroxide, triethoxycaprylylsilane, octyltriethoxysilane, and dimethicone.

Citation Information

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