WO2024101178A1

WO2024101178A1 - Cosmetic for correcting unevenness

Info

Publication number: WO2024101178A1
Application number: PCT/JP2023/038811
Authority: WO
Inventors: めぐみ廣石; 香代子直井
Original assignee: 株式会社資生堂
Priority date: 2022-11-11
Filing date: 2023-10-27
Publication date: 2024-05-16

Abstract

The purpose of the present invention is to provide a cosmetic for correcting unevenness (pores) that has an excellent corrective effect on unevenness of the skin, especially pores, while having low viscosity and that is capable of maintaining this excellent corrective effect for an extended period of time. The present invention relates to an oily or a water-in-oil emulsion cosmetic that contains (A) a powder (however, excluding colored pigments); (B) 0.2 to 15 mass% of a colored pigment; (C) a polar oil; and (D) 2 to 10 mass% of an oil gelling agent.

Description

Cosmetics for correcting unevenness

The present invention relates to an unevenness-correcting cosmetic. More specifically, it relates to a low-viscosity cosmetic that contains a polar oil such as an ultraviolet absorbent, and is an oil-based or water-in-oil emulsion-type cosmetic that can provide an excellent unevenness-correcting effect (pore correction effect) that can be sustained.

One of the functions required for base makeup (makeup base and foundation) is the ability to correct unevenness in the skin, making pores and other irregularities less noticeable. Conventional unevenness-correcting cosmetics use oil-based powder dispersed in it that penetrates into pores and other recesses to correct unevenness in the skin, while the powder's light reflection, diffusion, or interference effects blur the unevenness, making it less visible.

Patent Document 1 discloses a cosmetic that achieves both pore and texture correction and a glossy finish by blending a hydrophilic spherical powder in the internal phase (aqueous phase) of a water-in-oil emulsion cosmetic and a hydrophobic plate-shaped powder in the external phase (oil phase).

Patent Document 2 discloses a skin preparation that is effective in concealing aging pores with enlarged openings on the skin surface, by combining and blending hemispherical or semi-ellipsoidal powder with a powder whose main component is a (meth)acrylic acid ester polymer and whose particles are plate-shaped.

Patent Document 3 discloses a cosmetic composition for correcting unevenness that contains a prescribed amount of (a) fumed hydrophobic silica, (b) octamethyltrisiloxane and/or decamethyltetrasiloxane, (c) batyl alcohol, and (d) a powder other than (a), and is said to be free of so-called plastic microbeads and to have excellent usability and stability over time.

As mentioned above, various improvements have been made to cosmetics that have the effect of correcting unevenness such as pores, but when ester oils or UV absorbers are added to improve the usability of low-viscosity base makeup and to impart UV protection, the cosmetic film becomes thinner over time, and the powder that gets into the recesses of pores and other areas makes the unevenness more noticeable.

JP 2007-302583 A JP 2015-199688 A JP 2020-097552 A

The objective of the present invention is to provide an unevenness (pore) correcting cosmetic product that has low viscosity but is excellent in correcting skin unevenness, particularly pores, and can maintain this excellent correction effect for a long period of time.

As a result of extensive research into solving the above problems, the inventors discovered that in a low-viscosity cosmetic composition containing polar oil, by combining powder (other than color pigments) with color pigments and also adding a specified amount of oil gelling agent, it is possible to achieve a long-term unevenness correction effect, which led to the completion of the present invention.

That is, the present invention provides:
(A) Powders (excluding color pigments);
(B) 0.2 to 15% by weight of a color pigment;
(C) a polar oil; and
(D) Provided is an oil-based or water-in-oil emulsion cosmetic comprising 2 to 10% by mass of an oil gelling agent.

The oil-based or water-in-oil emulsion cosmetic of the present invention is excellent in correcting unevenness of the skin, particularly in making pores less noticeable, and this effect lasts for a long time. Therefore, there is no need to frequently touch up your makeup. Also, by adjusting the amount of color pigment blended, it is possible to achieve an extremely natural finish that looks like bare skin without makeup. Furthermore, by blending an ester oil and an ultraviolet absorbing agent as a polar oil, it is possible to create a base makeup that is easy to use and has excellent ultraviolet protection effects.

The oil-based or water-in-oil emulsion cosmetic of the present invention (hereinafter, simply referred to as "cosmetic") contains the following essential components: (A) powder (excluding color pigments); (B) color pigment; (C) polar oil; and (D) oil gelling agent.

(A) Powder The "powder" (also referred to as "component (A)") in the cosmetic of the present invention may be an inorganic powder or an organic powder that has conventionally been used in cosmetics and the like.
Examples of inorganic powders include talc, kaolin, mica (mica, sericite, white mica, gold mica, synthetic mica, red mica, black mica, etc.), vermiculite, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungstate, magnesium, silica (anhydrous silicic acid), zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate, fluorapatite, hydroxyapatite, ceramic powder, metal soap (e.g., zinc myristate, calcium palmitate, aluminum stearate, etc.), boron nitride, and fine particle titanium oxide and fine particle zinc oxide.

Examples of organic powders include polyamide resin powder (nylon powder), polyethylene powder, polymethyl methacrylate powder, polystyrene powder, styrene-acrylic acid copolymer resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, and cellulose powder.

The powder (component (A)) to be blended in the cosmetic of the present invention is preferably a powder with hydrophobic surface that can be dispersed in oil. Therefore, in the case of a powder made of a hydrophilic material, it is preferable to blend it as a powder whose surface has been hydrophobized. There are no particular limitations on the treatment agent used for surface hydrophobization, and examples of hydrophobization treatment agents that can be used include silicone compounds, fluorine-modified silicone compounds, fluorine compounds, higher fatty acids, higher alcohols, fatty acid esters, metal soaps, amino acids, and alkyl phosphates.

The particle shape of the powder is not particularly limited, and powders of spherical, plate-like, needle-like, etc. shapes can be used. The average particle size of the powder is also not particularly limited, but from the viewpoint of ultraviolet protection effect, it is preferable to include fine particle titanium oxide or fine particle zinc oxide, and from the viewpoint of usability, it is preferable to include spherical powder such as spherical silica.

The amount of powder (component (A)) in the cosmetic of the present invention is not particularly limited as long as it is an amount that exhibits an unevenness correction effect. Usually, it is preferable to blend in an amount in the range of 1 to 50 mass% relative to the total amount of the cosmetic. The amount of powder (component (A)) can be appropriately set within the above-mentioned preferred range. For example, the lower limit of the blending amount range relative to the total amount of the cosmetic may be 5 mass% or more, 8 mass% or more, 10 mass% or more, or 12 mass% or more. The upper limit of the blending amount range relative to the total amount of the cosmetic may be 40 mass% or less, 35 mass% or less, 30 mass% or less, or 20 mass% or less, etc.

(B) Coloring Pigment The "coloring pigment" (also referred to as "component (B)") in the cosmetic of the present invention is a pigment powder that is blended into the cosmetic as a coloring material. This "coloring pigment" (component (B)) includes colored pigments such as iron oxide, white pigments such as pigment-grade titanium oxide and pigment-grade zinc oxide, pearl pigments, organic pigments, etc.

Coloring pigments (component (B)) include, for example, white pigments such as titanium oxide and zinc oxide, inorganic red pigments such as iron oxide (red ocher) and iron titanate, inorganic brown pigments such as gamma-iron oxide, inorganic yellow pigments such as yellow iron oxide and ocher, inorganic black pigments such as black iron oxide, carbon and low-order titanium oxide, inorganic purple pigments such as mango violet and cobalt violet, inorganic green pigments such as chromium oxide, chromium hydroxide and cobalt titanate, inorganic blue pigments such as ultramarine and Prussian blue, titanium oxide-coated mica, titanium oxide-coated bismuth oxychloride and titanium oxide-coated talc. , pearl pigments such as colored titanium oxide-coated mica, bismuth oxychloride, and fish scale foil; metal powder pigments such as aluminum powder and copper powder; organic pigments such as Red No. 202, Red No. 205, Red No. 220, Red No. 228, Red No. 405, Orange No. 203, Orange No. 204, Yellow No. 205, Yellow No. 401, and Blue No. 404; and organic pigments such as zirconium, barium, and aluminum lake, including Red No. 3, Red No. 104, Red No. 227, Red No. 401, Orange No. 205, Yellow No. 4, Yellow No. 202, Green No. 3, and Blue No. 1.

The blending amount of the color pigment (component (B)) in the cosmetic of the present invention is within the range of 0.2 to 15% by mass based on the total amount of the cosmetic. If the blending amount is less than 0.2% by mass, a sufficient unevenness correction effect cannot be obtained. If the blending amount exceeds 15% by mass, although the unevenness correction effect can be obtained, it is not preferable because it gives a thick coating feeling.
In order to achieve a natural finish like bare skin without makeup when the cosmetic of the present invention is applied, it is effective to reduce the amount of color pigment to be blended. For example, an extremely natural finish can be achieved by making the amount of color pigment 5% by mass or less, preferably 3% by mass or less, more preferably 2% by mass or less, based on the total amount of the cosmetic.

(C) Polar Oil The "polar oil" (also referred to as "component (C)") in the present invention refers to an oil with high polarity among oils (excluding silicone oils) that are liquid at room temperature (25°C) and can be blended into a cosmetic, and preferably has an IOB value of 0.10 or more, 0.11 or more, 0.12 or more, or 0.13 or more. The upper limit of the IOB value of the polar oil (component (C)) is not particularly limited, but may be, for example, 0.50 or less, 0.45 or less, or 0.40 or less.
Here, the "IOB value" is an abbreviation for "Inorganic/Organic Balance" (inorganic/organic ratio), and is a value that represents the ratio of the inorganic value to the organic value, and is one of the indicators that indicate the degree of polarity of an organic compound. Specifically, the IOB value is expressed as IOB value = inorganic value / organic value. For each of the "inorganic value" and "organic value", "inorganic value" is set according to various atoms or functional groups, for example, the "organic value" is 20 for one carbon atom in a molecule, and the "inorganic value" is 100 for one hydroxyl group, and the "inorganic value" and "organic value" of each atom and functional group in an organic compound are integrated to calculate the IOB value of the organic compound (for example, see "Organic Conceptual Diagram - Basics and Applications" by Yoshio Koda, pp. 11-17, Sankyo Publishing, 1984).
Representative examples of the "polar oil" (component (C)) in the present invention are ester oil and ultraviolet absorbers.

Specific examples of ester oils include tripropylene glycol dineopentanoate, isononyl isononanoate, isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, cetyl ethylhexanoate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, glycerin di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexanoate, pentaerythrityl tetra-2-ethylhexanoate, Triethylhexanoin (tri-2-ethylhexanoic acid glycerin), trioctanoic acid glycerin, triisopalmitic acid glycerin, triisostearate trimethylolpropane, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, trimyristate glycerin, tri-2-heptylundecanoic acid glyceride, castor oil fatty acid methyl ester, oleyl oleate, acetoglyceride, palmitic acid 2-heptyl undecanoic acid undecyl, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, 2-ethylhexyl succinate, and triethyl citrate, but are not limited to these.

Ultraviolet absorbers that are liquid at room temperature (25°C) include, but are not limited to, benzoic acid derivatives, salicylic acid derivatives, cinnamic acid derivatives, dibenzoylmethane derivatives, β,β-diphenylacrylate derivatives, benzophenone derivatives, benzylidene camphor derivatives, phenylbenzimidazole derivatives, triazine derivatives, phenylbenzotriazole derivatives, anthranil derivatives, imidazoline derivatives, benzalmalonate derivatives, 4,4-diarylbutadiene derivatives, etc.

Specific examples of benzoic acid derivatives include ethyl p-aminobenzoate (PABA), ethyl-dihydroxypropyl PABA, ethylhexyl-dimethyl PABA, glyceryl PABA, PEG-25-PABA, and diethylaminohydroxybenzoylhexyl benzoate.

Specific examples of salicylic acid derivatives include homosalate, ethylhexyl salicylate (octyl salicylate), dipropylene glycol salicylate, and TEA salicylate.

Specific examples of cinnamic acid derivatives include ethylhexyl methoxycinnamate, isopropyl methoxycinnamate, isoamyl methoxycinnamate, cinoxate, DEA methoxycinnamate, diisopropyl methylcinnamate, glyceryl-ethylhexanoate-dimethoxycinnamate, and di-(2-ethylhexyl)-4'-methoxybenzalmalonate.

A specific example of the dibenzoylmethane derivative is butyl methoxydibenzoylmethane (4-tert-butyl-4'-methoxydibenzoylmethane).
A specific example of the β,β-diphenylacrylate derivative is octocrylene.

Specific examples of the benzophenone derivatives include benzophenone (oxybenzone)-1, benzophenone-2, benzophenone-3, benzophenone-4, benzophenone-5, benzophenone-6, benzophenone-8, benzophenone-9, and benzophenone-12.
Specific examples of triazine derivatives include anisotriazine (bisethylhexyloxyphenol methoxyphenyl triazine), ethylhexyl triazone, diethylhexylbutamido triazone, and 2,4,6-tris(diisobutyl-4'-aminobenzalmalonate)-s-triazine.

Specific examples of phenylbenzotriazole derivatives include drometrizole trisiloxane and methylene bis(benzotriazolyl tetramethylbutylphenol).
Specific examples of the anthranil derivative include menthyl anthranilate.
Specific examples of the imidazoline derivative include ethylhexyl dimethoxybenzylidene dioxoimidazolidine propionate.

Specific examples of benzalmalonate derivatives include polyorganosiloxanes having a benzalmalonate functional group.
A specific example of the 4,4-diarylbutadiene derivative is 1,1-dicarboxy(2,2'-dimethylpropyl)-4,4-diphenylbutadiene.

In the cosmetic of the present invention, when an ester oil is blended as a polar oil, the usability (smoothness) of the cosmetic is improved. Furthermore, when an ultraviolet absorber is blended, the cosmetic can be made to have ultraviolet protection properties. The ester oil and the ultraviolet absorber may each be used alone or in a mixture of two or more types. From the viewpoint of obtaining an excellent ultraviolet protection effect (high SPF), it is preferable to include an ultraviolet absorber.

The amount of polar oil (component (C)) in the cosmetic of the present invention is not particularly limited, but in order to obtain smooth usability, it is preferably blended in at least 5% by mass, more preferably at least 8% by mass, and even more preferably at least 10% by mass, based on the total amount of the cosmetic. There is no particular upper limit to the amount of polar oil blended, and it can be, for example, 98% by mass or less, or 97% by mass or less, based on the total amount of the cosmetic.

(D) Oil Gelling Agent An "oil gelling agent" (also referred to as "component (D)") is a component that has the function of thickening (gelling) an oil by dissolving in the oil or swelling with the oil. The "oil gelling agent" (component (D)) in the cosmetic of the present invention has the above-mentioned thickening (gelling) function, particularly with respect to polar oil (component (C)), and can be appropriately selected from substances that can be used in cosmetics and the like. For example, crosslinked silicone powder, which swells with silicone oil and has the effect of increasing the apparent viscosity of the silicone oil, is considered to have no or only a weak thickening (gelling) function with respect to polar oil, and is therefore not included in the oil gelling agent (component (D)) in the present invention.

Specific examples of oil gelling agents (component (D)) preferably used in the present invention include amino acid gelling agents, sugar fatty acid esters, waxes, fatty acids or salts thereof that are solid at room temperature (25°C), glyceryl fatty acid esters, and organically modified clay minerals. These oil gelling agents may be used alone or in combination of two or more.

Examples of amino acid gelling agents include dibutyl lauroyl glutamide, dibutyl ethylhexanoyl glutamide, polyamide-8, polyamide-3, etc.

The sugar fatty acid ester includes dextrin fatty acid ester and sucrose fatty acid ester.
The dextrin fatty acid ester is an ester of dextrin or reduced dextrin with a higher fatty acid, and can be used without any particular limitation as long as it is one that is generally used in cosmetics. It is preferable to use dextrin or reduced dextrin with an average degree of glycopolymerization of 3 to 100. In addition, it is preferable to use a saturated fatty acid having 8 to 22 carbon atoms as the fatty acid constituting the dextrin fatty acid ester. Specific examples include dextrin palmitate, dextrin oleate, dextrin stearate, dextrin myristate, and dextrin (palmitate/2-ethylhexanoate).

Sucrose fatty acid esters in which the fatty acid is linear or branched, saturated or unsaturated, and has 12 to 22 carbon atoms can be preferably used. Specific examples include sucrose caprylate, sucrose caprate, sucrose laurate, sucrose myristic acid, sucrose palmitate, sucrose stearate, sucrose oleate, and sucrose erucate.

Waxes can be selected from those that are commonly used in cosmetics. Specific examples include natural waxes such as candelilla wax, carnauba wax, beeswax, and Japan wax; and mineral waxes such as polyethylene wax, paraffin wax, ceresin wax, and microcrystalline wax, but are not limited to these.

The fatty acids used as oil gelling agents are solid fatty acids at room temperature (25°C), such as myristic acid, palmitic acid, stearic acid, behenic acid, and 12-hydroxystearic acid. These fatty acids may also be blended in the form of a salt (e.g., calcium salt, magnesium salt, aluminum salt, etc.).

Glyceryl fatty acid esters are esterification reaction products obtained by reacting glycerin, a dibasic acid having 18 to 28 carbon atoms, and a fatty acid having 8 to 28 carbon atoms (excluding dibasic acids), and can be used without any particular restrictions as long as they are commonly used in cosmetics, etc. Specific examples include glyceryl (behenic acid/isostearic acid/eicosane dioic acid), glyceryl (behenic acid/eicosane dioic acid), polyglyceryl-10 (behenic acid/eicosane dioic acid), etc.

Typical examples of organically modified clay minerals include dimethyl distearammonium hectorite, disteardimonium hectorite, dimethyl alkyl ammonium hectorite, benzyl dimethyl stearyl ammonium hectorite, and magnesium aluminum silicate treated with distearyl dimethyl ammonium chloride. Commercially available products include Bentone 27 (benzyl dimethyl stearyl ammonium chloride treated hectorite: manufactured by Elementis Japan Co., Ltd.) and Bentone 38 (distearyl dimethyl ammonium chloride treated hectorite: manufactured by Elementis Japan Co., Ltd.).

The oil gelling agent (component (D)) used in the cosmetic of the present invention preferably contains at least one selected from the group consisting of amino acid-based gelling agents, sugar fatty acid esters, waxes, fatty acids that are solid at room temperature, and organically modified clay minerals. In the cosmetic of the present invention, it is particularly preferable to use an amino acid-based gelling agent, and in particular polyamide-8.

The amount of oil gelling agent (component (D)) in the cosmetic of the present invention is 2-10% by mass, preferably 2-8% by mass, and more preferably 2-5% by mass, based on the total amount of the cosmetic. If the amount is less than 2% by mass, a sufficient unevenness correction (pore correction) effect cannot be obtained. If the amount is more than 10% by mass, stickiness may occur.

The cosmetic of the present invention is an "oil-based or water-in-oil type emulsion cosmetic" (hereinafter collectively referred to as "oil-based cosmetic"). An "oil-based cosmetic" refers to a cosmetic in which oil is initially felt when applied to the skin, and may contain a small amount of water or may be in a water-free (anhydrous) form.
In the oil-based cosmetic preparation (in a comprehensive sense) of the present invention, the blending amount of water is preferably 25% by mass or less, and more preferably 20% by mass or less.

The cosmetic composition of the present invention is a cosmetic composition that has low viscosity and excellent unevenness correction (pore correction) effects. Therefore, it is preferable that the viscosity of the cosmetic composition of the present invention is 10,000 mPa·s or less. By adjusting the viscosity to such a low level, it is possible to achieve a smooth feel when used and a natural finish.

In addition to the above components (A) to (D), the cosmetic of the present invention may contain other optional components that may be typically incorporated into cosmetics, etc., to the extent that the effects of the present invention are not impaired. Other optional components include, but are not limited to, oils other than polar oils, surfactants, moisturizers, film-forming agents, chelating agents, lower alcohols (ethanol, isopropanol, etc.), pH adjusters (buffers such as lactic acid/sodium lactate, citric acid/sodium citrate, etc.), preservatives, antioxidants, fragrances, and various pharmaceutical agents.

Oils other than polar oils can be selected from oils that are liquid, semi-solid, or solid at room temperature (25°C) and can be normally used in cosmetics, etc. Specific examples include hydrocarbon oils, higher fatty acids, higher alcohols, oils and fats, silicone oils, etc.

Examples of the hydrocarbon oil include liquid paraffin and squalane.
Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, tallic acid, isostearic acid, linoleic acid, linoleic acid, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA).

Higher alcohols include straight-chain alcohols such as lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, and cetostearyl alcohol; and branched-chain alcohols such as monostearyl glycerin ether (batyl alcohol), 2-decyltetradecyl alcohol, lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, and octyldodecanol.

Examples of silicone oils include chain silicone oils and cyclic silicone oils such as dimethylpolysiloxane (dimethicone), phenyl-modified silicone (diphenylsiloxyphenyltrimethicone, etc.), and alkyl-modified silicone (caprylyl methicone, etc.).

The surfactant is not particularly limited, but examples thereof include silicone surfactants, particularly silicone surfactants having an HLB value of 6 or less, such as PEG-10 dimethicone and PEG-9 dimethylsiloxyethyl dimethicone.
The present invention also encompasses embodiments that do not include siloxane compounds having polyoxyalkylene groups and amidoalkyl groups in the branch polymer, such as PEG-12 methyl ether lauroxy PEG-5 amidopropyl dimethicone.

Specific examples of moisturizers include dihydric alcohols (ethylene glycol, propylene glycol, 1,3-butylene glycol, propanediol, etc.); trihydric alcohols (glycerin, etc.); tetrahydric alcohols (pentaerythritol such as 1,2,6-hexanetriol, etc.); pentahydric alcohols (xylitol, etc.); polyhydric alcohol polymers (diglycerin, dipropylene glycol, triethylene glycol, polyethylene glycol, etc.); sugar alcohols (sorbitol, mannitol, etc.), hyaluronic acid, etc.

The cosmetic of the present invention can be produced using a method commonly used for oil-based or water-in-oil emulsion cosmetics. For example, in the case of an oil-based (anhydrous) cosmetic, it can be produced by stirring and mixing the oily components while optionally heating them as necessary, and dispersing a powder in the mixture. In the case of a water-in-oil emulsion cosmetic, it can be produced by stirring and mixing the components (including powder) that make up the oil phase while optionally heating them as necessary, separately stirring and mixing the components that make up the water phase while optionally heating them as necessary, and mixing and emulsifying the water phase into the oil phase while stirring.

The cosmetic of the present invention is an oil-based cosmetic that has low viscosity, a smooth feel when used, and excellent unevenness correction (pore correction) effects. Therefore, it is suitable for use as a makeup cosmetic such as a makeup base or foundation. In particular, a makeup base in which the blending amount of color pigment is adjusted to 5% by mass or less can achieve a natural finish that looks as if no makeup is being applied.

The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples. The blend amounts are expressed in mass % unless otherwise specified.

Water-in-oil emulsion cosmetics were prepared in the usual manner using the formulations shown in Tables 1 to 4 below. The properties of each example of the cosmetics were measured and evaluated using the following methods.

"Pore correction effect,""smoothapplication," and "natural finish"
Each cosmetic example was used by 10 expert panelists, who evaluated it according to the following criteria.
<Evaluation criteria>
A: 9 or more people rated it as excellent. B: 6 to 8 people rated it as excellent. C: 5 or less people rated it as excellent.

As shown in Table 1, the majority of panelists rated the cosmetic composition containing the required components (A) to (D) of the present invention in the prescribed amounts as excellent in all aspects, including pore correction effect, ease of use, and natural finish, even when the type of powder was changed. However, Example 5, which contained less than 10% polar oil by mass, spread slightly more heavily when applied.

The results shown in Table 2 show that although satisfactory ratings were obtained in each category even when the type of oil gelling agent was changed, a sufficient pore correction effect was not obtained if the amount of oil gelling agent was less than 2% by mass.

The results in Table 3 show that the incorporation of powder (component (A)) is essential to obtain an excellent pore correction effect (Comparative Example 3).
Furthermore, in Comparative Example 4, in which the polyamide-8 in Example 5 (Table 1) was replaced with the same amount of silicone gel (containing cross-linked silicone powder), and in Comparative Example 5, in which the amount of silicone gel was adjusted so that the actual amount of cross-linked silicone powder was approximately the same as the polyamide-8 in Example 5, neither of them achieved a sufficient pore correction effect.

The results in Table 4 show that the inclusion of a color pigment is essential for a good pore correction effect (Comparative Example 6). On the other hand, when the amount of color pigment exceeds 5 mass %, the problem of the present invention of improving the unevenness correction effect is solved, but a natural finish may not be achieved (Examples 12 and 13).

Claims

(A) Powders (excluding color pigments);
(B) 0.2 to 15% by weight of a color pigment;
(C) a polar oil; and
(D) 2 to 10 mass % of an oil gelling agent,
An oil-based or water-in-oil emulsion cosmetic comprising:
The cosmetic preparation according to claim 1, in which the blending amount of (B) color pigment is 5% by mass or less.
The cosmetic preparation according to claim 1 or 2, wherein (C) the polar oil contains an ultraviolet absorber.
The cosmetic preparation according to claim 1 or 2, wherein (D) the oil gelling agent comprises at least one selected from the group consisting of amino acid gelling agents, sugar fatty acid esters, waxes, fatty acids or salts thereof that are solid at room temperature, glyceryl fatty acid esters, and organically modified clay minerals.
The cosmetic preparation according to claim 4, wherein (D) the oil gelling agent includes an amino acid-based gelling agent.
The cosmetic according to claim 5, wherein the amino acid-based gelling agent is polyamide-8.
The cosmetic preparation according to claim 1 or 2, in which the amount of water is 25% by mass or less.
The cosmetic preparation according to claim 1 or 2, having a viscosity of 10,000 mPa·s or less.