JP5851724B2 - Oil-in-water makeup cosmetics - Google Patents

Description

  The present invention relates to an oil-in-water makeup cosmetic.

  Conventionally, as an emulsified makeup cosmetic, a water-in-oil emulsified cosmetic mainly composed of an oil component having an excellent lasting effect has been used to maintain the cosmetic effect for a long time. Water-in-oil emulsified cosmetics are excellent in pigment dispersibility and have a high lasting effect.However, they have the disadvantage that whiteness of the pigment, twisting, and stickiness due to oil are produced, making it difficult to obtain a high feeling of use. Was.

  Therefore, for the purpose of obtaining a high feeling of use, formulation in an oil-in-water system has been studied, but in an oil-in-water system, it is difficult to disperse the pigment in the outer phase, and over time the pigment becomes sebum and the like. It had the disadvantage of being wet and inferior in makeup.

  On the other hand, in recent years, hydrophobized powder has been used for the purpose of improving the adhesion of the powder to the skin or imparting water resistance. However, an oil-in-water emulsified cosmetic containing a hydrophobized powder has a problem of obtaining sufficient stability as a product. Therefore, research is being carried out to prevent coalescence of emulsified particles, aggregation of fine powder particles, and sedimentation due to aging and temperature changes (see Patent Documents 1 and 2). However, there was room for further improvement in its stability.

  In order to ensure the stability of the oil-in-water type emulsion base, it is very important to thicken the continuous phase with a thickener. The thickening method by electrostatic repulsion, such as carboxyvinyl polymer, has a high thickening effect and is good without feeling sticky to use. Or it may cause a problem of gelation. Therefore, when blending hydrophobized powder or the like, a thickening method using a polysaccharide having excellent salt resistance is preferred.

Japanese Patent Publication No. 7-94366 JP-A-8-310940

  However, the polysaccharide has a slightly weaker viscosity than the carboxyvinyl polymer and the like, and in order to exert the thickening effect, it needs to be blended in a relatively large amount, resulting in stickiness. Furthermore, oil-in-water emulsified cosmetics containing polysaccharides sometimes wrinkle when dried after being applied to the skin. In particular, when a hydrophobized powder is included, the warpage is increased by the interaction between the polysaccharide and the hydrophobized powder. Accordingly, it has been desired to develop an oil-in-water emulsified cosmetic material that has good pigment dispersion stability and is free from stickiness and stickiness.

  Therefore, the present inventors have studied to develop an oil-in-water emulsified cosmetic that stably contains a hydrophobic powder. As a result, the oily component containing the hydrophobic powder is converted into 2-acrylamido-2-methylpropanesulfonic acid. Or a salt thereof, (meth) acrylic acid and / or ester thereof, and an aqueous gel composition containing a cross polymer containing N, N-dimethylacrylamide as a structural unit, so that a high stability and high usability The present inventors have found that an oil-in-water make-up cosmetic can be obtained.

The present invention is an oil-in-water makeup cosmetic comprising the following components (A) and (B), wherein the component (A) is contained in the aqueous phase and the component (B) is contained in the oil phase. .
(A) 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, (meth) acrylic acid and / or an ester thereof, and a cross polymer (B) hydrophobic powder containing N, N-dimethylacrylamide as constituent units

  The oil-in-water makeup cosmetic of the present invention is non-sticky and provides a pleasant feeling of use, does not cause sag when dried, and has excellent powder stability.

The water-soluble thickener used in the present invention comprises (A) 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, (meth) acrylic acid and / or an ester derivative thereof, and N, N-dimethylacrylamide. It is a cross polymer containing as a unit. Here, examples of the (meth) acrylic acid ester include alkyl (meth) acrylate and alkylpolyoxyethylene (meth) acrylate. Examples of the alkyl (meth) acrylate include C _6-20 alkyl (meth) acrylate, and lauryl (meth) acrylate, myristyl (meth) acrylate, palmityl (meth) acrylate, and the like are preferable, and lauryl (meth) acrylate is more preferable. . _{Examples of the} alkyl polyoxyethylene (meth) acrylate include C _6-20 alkyl polyoxyethylene (meth) acrylate, such as lauryl polyoxyethylene (meth) acrylate, myristyl polyoxyethylene (meth) acrylate, and palmityl poly. Oxyethylene (meth) acrylate and the like are preferable, and lauryl tetraoxyethylene (meth) acrylate is more preferable. In addition, 2 or more types of ester of (meth) acrylic acid may be contained. The salt of 2-acrylamido-2-methylpropanesulfonic acid is preferably an ammonium salt.

Examples of more preferred crosspolymers include 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, C _6-20 alkyl (meth) acrylate and / or C _6-20 alkyl polyoxyethylene (meth) acrylate, And a copolymer with N, N-dimethylacrylamide.
As a specific cross polymer, (2-methyl-2-[(1-oxo-2-propenyl) amino] -1-propanesulfonic acid ammonium / N, N-dimethylacrylamide / lauryl tetraoxyethylene (meth) acrylate ) Crosspolymer, (2-methyl-2-[(1-oxo-2-propenyl) amino] -1-propanesulfonic acid ammonium / N, N-dimethylacrylamide / lauryl (meth) acrylate / lauryl tetraoxyethylene (meta ) Acrylate) Cross polymer etc. are mentioned. As an example of a commercially available product, SepiMAX ZEN manufactured by SEPPIC can be mentioned.

  These water-soluble thickeners include 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, one or more (meth) acrylic acid and / or an ester thereof, and N, N-dimethylacrylamide. It can be obtained by copolymerization.

  The content of the (A) water-soluble thickener in the oil-in-water makeup cosmetic of the present invention is preferably 0.1 to 5% by mass, based on the total amount of the makeup cosmetic, and 0.15 to 3% by mass. Is more preferable, and 0.5-2 mass% is further more preferable. (A) By making a water-soluble thickener into this range, stability is favorable and stickiness is suppressed.

  The hydrophobic powder (B) used in the present invention is a powder having a small interaction with water and a low affinity with water, and is usually a lipophilic powder. Hydrophobic powder is essentially a powder of a hydrophobic material, for example, metal soap powder such as zinc stearate, aluminum stearate, calcium stearate, zinc myristate; nylon powder, polymethyl methacrylate, acrylonitrile-methacrylic acid Resin powders such as copolymer powder, vinylidene chloride-methacrylic acid copolymer powder, polystyrene powder, organopolysiloxane elastomer powder, and polymethylsilsesquioxane powder may be used. Further, a powder obtained by using this hydrophobic powder as a base material and further hydrophobizing may be used.

  In the present invention, the base powder to be hydrophobized is a powder generally used in cosmetics, such as spherical, plate-like, needle-like shapes, fumes, fine particles, pigment grades, etc., porous It can be used without particular limitation depending on the particle structure such as quality and non-porous. Specifically, titanium oxide, black titanium oxide, conger, ultramarine, bengara, yellow iron oxide, black iron oxide, zinc oxide, aluminum oxide, silicon dioxide, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, chromium oxide, Chromium hydroxide, carbon black, aluminum silicate, magnesium silicate, magnesium aluminum silicate, mica, synthetic mica, synthetic sericite, sericite, talc, kaolin, silicon carbide, barium sulfate, bentonite, smectite, boron nitride, etc. Inorganic powders: Bismuth oxychloride, titanium mica, iron oxide-coated mica, iron oxide mica titanium, organic pigment-treated mica titanium, aluminum powder and other glittering powders; organic powders such as wool powder, silk powder and crystalline cellulose Body: Silica, organic Pigment powders such as pigments of organic pigments, lake pigments of organic dyes; composites of fine titanium oxide coated mica titanium, fine zinc oxide coated mica titanium, barium sulfate coated mica titanium, titanium oxide containing silicon dioxide, zinc oxide containing silicon dioxide, etc. A powder etc. are mentioned, These can be used 1 type or 2 or more types.

  Examples of the treating agent for hydrophobizing the powder include silicone compounds such as dimethylpolysiloxane, methylhydrogenpolysiloxane, high-viscosity silicone, cross-linked silicone, fluorine-modified silicone, acrylic-modified silicone, and silicone resin; anion interface Surfactants such as activators, cationic surfactants and nonionic surfactants; amino acids such as N-acyl glutamic acid, N-acyl aspartic acid and N-acyl lysine; lecithin; metal soap; methyltrimethoxysilane, ethyltrimethoxy Alkyl silanes such as silane, hexyltrimethoxysilane, octyltrimethoxysilane, etc .; oil agents such as polyisobutylene, wax, fats and oils; fluors such as perfluoroalkyl phosphate, perfluoropolyether, perfluoropolyether alkyl phosphate, etc. Containing compounds; PVP-PVP modified polymer of copolymer such as hexadecene; organic titanates such as triisostearate isopropyl titanium can be mentioned, these can be used alone or in combination. As a method of treating the treating agent into powder, a known method is usually used, and examples thereof include a wet method using a solvent, a gas phase method, a mechanochemical method, and the like.

  Of these hydrophobic powders, it is preferable to use a hydrophobized powder from the viewpoint of dispersion stability, and it is more preferable to contain hydrophobized titanium oxide and / or hydrophobized zinc oxide. Furthermore, from the viewpoint of dispersion stability, it is preferable to use titanium oxide or zinc oxide hydrophobized with a silicone compound, amino acid, alkylsilane, organic titanate, fluorine compound or the like.

  In the present invention, it is necessary that the (A) water-soluble thickener is contained in the aqueous phase and the hydrophobic powder is contained in the oil phase. By blending the hydrophobic powder into the oil phase, the emulsified particles are dense and the long-term stability is excellent. When the hydrophobic powder is contained in the aqueous phase, powder dispersion is difficult and the uniformity of the appearance is impaired.

  Hydrophobic powder is resistant to water and sweat even when actually applied to an oil-in-water emulsion, and makeup loss is unlikely to occur. When untreated powder that is not subjected to water repellent treatment is used, the powder surface has a strong hydrophilic property, so makeup slippage due to water or sweat is very likely to occur.

  The content of the hydrophobic powder (B) in the oil-in-water makeup cosmetic of the present invention is preferably 0.1 to 30% by mass, and 0.5 to 25% by mass based on the total amount of the makeup cosmetic. More preferred. By making the content of the hydrophobic powder within this range, color development is good, sufficient cosmetic effect can be obtained as a makeup cosmetic, makeup sustainability is improved, and the inner oil phase In addition, the powder can be sufficiently dispersed, and the emulsion stability is also good. Since the makeup cosmetic of the present invention is excellent in powder dispersibility, it is possible to incorporate a high amount of powder. When used as a base makeup cosmetic, (B) hydrophobic 10 to 30% by mass of the active powder can be contained based on the total amount of the makeup cosmetic.

  In the oil-in-water makeup cosmetic according to the present invention, the oil phase in which the hydrophobic powder is dispersed includes liquid paraffin, squalane, petrolatum, microcrystalline wax, ceresin, cetyl alcohol, isostearyl alcohol, oleyl alcohol, 2- Hexyldecanol, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, dipentyl glycol di-2-ethylhexanoate, neopentyl glycol dicaprylate, neopentyl glycol dicaprate, glyceryl tri-2-ethylhexanoate, glyceryl triisostearate, Olive oil, macadamia nut oil, sunflower oil, lanolin, lauric acid, myristic acid, palmitic acid, stearic acid, bees wax, candelilla wax, carnauba wax, chain or ring Dimethylpolysiloxane, include oil, such as methyl phenyl polysiloxane. Of these oils, it is preferable to blend a silicone oil excellent in lasting and pigment dispersibility. In the oil-in-water makeup cosmetic of the present invention, the oil phase contains 1 to 40% by mass, 2 to 35% by mass, and further 5 to 30% by mass of silicone oil because of the lasting and pigment dispersibility. This is preferable.

  In the oil-in-water makeup cosmetic according to the present invention, in addition to the above-described essential constituents, generally known base components and the like are added according to their desired form and dosage form. As long as the effect of the above is not impaired, it can be used in a wide range. For example, polyoxyethylene oleyl ether, sorbitan monoisostearate, polyethylene glycol monostearate, lauroyl diethanolamide, sucrose fatty acid ester, sodium laurate, sodium lauryl sulfate, sodium myristate, sodium polyoxyethylene lauryl ether sulfate, stearyl trimethyl Surfactants such as ammonium chloride and polyether-modified silicone; medicinal ingredients such as nicotinamide, benzyl nicotinate, vitamin E acetate, vitamin H, extract of glycyrrhetinic acid, pantothenyl ethyl ether; benzoes such as paraaminobenzoic acid Acid UV absorbers, anthranilic acid UV absorbers such as methyl anthranilate, octyl salicylate, phenyl salicylate, salicy Salicylic acid UV absorbers such as homomethyl acid, isopropyl paramethoxycinnamate, octyl paramethoxycinnamate, 2-ethylhexyl paramethoxycinnamate, glyceryl mono-2-ethylhexanoate diparamethoxycinnamate, [4 -Bis (trimethylsiloxy) methylsilyl-3-methylbutyl] -3,4,5, -trimethoxycinnamic acid ester and other cinnamic acid UV absorbers, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxy Benzophenone ultraviolet absorbers such as benzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid, sodium 2-hydroxy-4-methoxybenzophenone-5-sulfonate, urocanic acid, ethyl urocanate, 2-phenyl-5 -Methylbenzoxazole, 2- UV absorbers such as 2′-hydroxy-5′-methylphenyl) benzotriazole and 4-tert-butyl-4′-methoxybenzoylmethane; sequestering agents such as alanine, sodium edetate and sodium polyphosphate; Preservatives such as acid, salicylic acid, coalic acid, sorbic acid, paraoxybenzoic acid ester, parachloromethcresol, hexachlorophene, benzalkonium chloride, chlorhexidine chloride, trichlorocarbanilide, photosensitizer, phenoxyethanol; ascorbic acid, α-tocopherol , Antioxidants such as dibutylhydroxytoluene and butylhydroxyanisole; pH adjusters such as lactic acid, citric acid, glycolic acid, succinic acid, tartaric acid, dl-malic acid, potassium carbonate, sodium bicarbonate, ammonium bicarbonate; An agent, a film agent, a lower alcohol, a polyhydric alcohol, a sugar, an amino acid, an organic amine, a skin nutrient, a fragrance, a colorant, water, and the like are appropriately blended in the composition of the present invention and are usually added according to the intended dosage form. It can be manufactured by the method.

Examples of the form of the oil-in-water makeup cosmetic of the present invention include base makeup cosmetics such as foundations, makeup bases, makeup bases, point makeup cosmetics such as eye shadows, highlights, cheeks, mascaras, and BB creams. thing or the like provided with a function of base makeup to skin care cosmetics and the like, and the like.

  EXAMPLES Next, although an Example is given and this invention is demonstrated still in detail, this invention is not limited by these Examples. In addition, all compounding quantities are the mass%.

  The oil-in-water makeup cosmetics listed in Table 1 below were prepared and evaluated for stickiness, slipperiness, powder cohesiveness, and makeup feeling based on the following evaluation criteria. The results are shown in Table 1.

(1) Evaluation criteria for usage characteristics (stickiness, slipperiness, makeup retention) Each of the 20 panelists applied each sample of the example and the comparative example, and “No stickiness”, “No slippage”, “2 The usage characteristics were evaluated according to the number of respondents who responded “I can't break over time”. The evaluation criteria are as follows.

○: 15 people or more △: 7-14 people ×: 6 people or less

(2) Evaluation criteria of powder aggregation Each sample is stretched on an acrylic plate, the state is observed, and the degree of aggregation is evaluated.
If the powder is agglomerated, agglomerates are observed.
○: Agglomerated powder is not recognized.
Δ: Slightly white aggregate is observed.
X: Many white aggregates are recognized.

  As is apparent from the results shown in Table 1, when (A) a water-soluble thickener is not used, there is a problem in the feeling of stickiness, stickiness, and when a powder component that is not hydrophobized is blended. The pigment dispersion was poor and there was a problem in terms of cosmetic durability, and the effects of the present invention could not be obtained (Comparative Examples 1, 2).

Below, the formulation example of this invention is shown further. In addition, Example 3 and Example 7 are reference examples, and are not included in the scope of claims.

Example 3
(Make-up base)
(mass%)
1. Dimethicone * 5 5.0
2. Isocetyl myristate 6.0
3. Ethylhexyl paramethoxycinnamate 5.0
4). Self-emulsifying glyceryl monostearate 0.6
5. Sorbitan monoisostearate 0.6
6). Cetanol 2.3
7). Phytosterol 0.6
8). Stearic acid 0.4
9. SepiMAX ZEN * 3 0.3
10. Glycerin 5.0
11. Methylparaben 0.3
12 Purified water remaining amount 13. Octyltriethoxysilane-treated zinc oxide 3.0
14 Polymethylsilsesquioxane * 6 0.5
* 5 2-1184 Fluid: Toray Dow Corning * 6 TOSPEARL 145A: Momentive Performance Materials Japan

Example 4
(Foundation)
(mass%)
1. Self-emulsifying glyceryl monoisostearate 1.0
2. Sorbitan monoisostearate 1.0
3. Stearyl alcohol 1.0
4). Octyl methoxycinnamate 7.5
5. Dimethicone * 7 0.5
6). α-olefin oligomer 4.0
7). Dimer linoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl) * 8 2.0
8). SepiMAX ZEN * 3 1.0
9. Glycerin 4.0
10. Edetate disodium 0.1
11. Methylparaben 0.25
12 Sodium dehydroacetate 0.1
13. Phenoxyethanol 0.4
14 Silk powder 0.1
15. Ascorbic acid disodium sulfate 0.01
16. Purified water residue 17. Amino acid / alkyl titanate-treated titanium oxide * 9 7.5
18. Amino acid / alkyl titanate-treated iron oxide * 9 1.0
19. Amino acid / alkyl titanate-treated talc * 9 1.0
20. Amino acid / alkyl titanate-treated mica * 9 0.5
* 7 KF-96A-20CS: manufactured by Shin-Etsu Chemical Co., Ltd. * 8 Plandool-H: manufactured by Nippon Seika Co., Ltd. * 9 ASI series: manufactured by Daito Kasei Kogyo Co., Ltd.

Example 5
(BB cream)
(mass%)
1. Stearic acid 0.5
2. Glyceryl monostearate 1.5
3. Behenyl alcohol 0.5
4). α-olefin oligomer 14.0
5. Dimethicone * 10 1.0
6). SepiMAX ZEN * 3 1.0
7). Bentonite * 11 0.1
8). Sodium stearoyl glutamate 0.3
9. Glycerin 10.0
10. Methylparaben 0.2
11. Sorbic acid 0.05
12 Sodium hyaluronate 0.01
13. Phenoxyethanol 0.4
14 Purified water residue 15. Amino acid-treated titanium oxide * 12 5.0
16. Amino acid-treated iron oxide * 12 0.8
17. Amino acid processing talc * 12 1.2
18. Acrylates copolymer * 13 1.0
19. Nylon * 14 0.5
20. Lauroyl lysine * 15 0.5
* 10 SH200-2CS: Toray Dow Corning * 11 Kunipia G4: Kunimine Kogyo * 12 LL Series: Daito Kasei Kogyo * 13 Microsphere S-102: Matsumoto Yushi Seiyaku * 14 Nylon SP- 500: Toyo Rayon Co., Ltd. * 15 Ami Hope LL: Ajinomoto Co., Inc.

Example 6
(Make-up base)
(mass%)
1. Polyoxyethylene (20) sorbitan monolaurate 0.3
2. Polyoxyethylene (60) hydrogenated castor oil 0.8
3. Octyl methoxycinnamate 5.5
4). Diethylaminohydroxybenzoyl ethylhexyl benzoate 0.5
5. Butylmethoxybenzoylmethane 1.5
6). Octyldodecyl myristate 5.0
7). Phenyl trimethicone * 1 2.0
8). Dimethicone * 16 1.0
9. (Dimethicone / vinyl dimethicone) Cross polymer * 17 0.1
10. Isononyl isononanoate 1.0
11. Ethanol 8.0
12 Butylene glycol 2.0
13. PVA 0.5
14 SepiMAX ZEN * 3 1.0
15. Acrylic acid / alkyl methacrylate copolymer * 18 0.3
16. Potassium hydroxide 0.2
17. Ascorbic acid disodium sulfate 0.01
18. Hypericum extract 0.1
19. Olive leaf extract 0.1
20. Purified water balance 21. Silicone-treated titanium oxide 1.0
22. Silicone-treated zinc oxide 3.0
22. Silicone-treated iron oxide 0.3
23. Silicone-treated mica titanium 1.0
* 16 KF-96A-6CS: Shin-Etsu Chemical Co., Ltd. * 17 KSG-16: Shin-Etsu Chemical Co., Ltd. * 18 PEMULEN TR-1, Lubrizol Advanced Materials, Inc. Made by company

Example 7
(Make-up base)
(mass%)
1. Octyl methoxycinnamate 7.0
2. Diethylaminohydroxybenzoyl ethylhexyl benzoate 0.5
3. Isocetyl myristate 5.0
4). Cyclomethicone * 19 3.0
5. Methyl trimethicone * 20 1.0
6). Dimethicone * 10 0.5
7). Ethanol 10.0
8). SepiMAX ZEN * 3 1.0
9. (Na acrylate / acryloyl dimethyl taurine Na) copolymer * 21
2.0
10. (Dimethicone / vinyl dimethicone) Cross polymer * 22 0.5
11. Glycerin 2.0
12 Edetate disodium 0.02
13. Purified water residue 14. Silicone-treated zinc oxide 5.0
15. Polymethylsilsesquioxane * 6 1.0
16. Silicone-treated silica 0.5
* 19 KF-995: manufactured by Shin-Etsu Chemical * 20 TMF-1.5: manufactured by Shin-Etsu Chemical * 21 SIMULGEL EG: manufactured by SEPPIC * 22 PF-2001 Powder in Fluid Emulsion: manufactured by Toray Dow Corning

Example 8
(Make-up base)
(mass%)
1. Dimethicone * 5 5.0
2. Liquid paraffin 6.0
3. Diphenylsiloxyphenyl trimethicone 2.5
4). Ethylhexyl paramethoxycinnamate 5.0
5. Self-emulsifying propylene glycol stearate 1.0
6). Sorbitan monoisostearate 1.0
7). Stearyl alcohol 1.5
8). Phytosterol 0.6
9. Stearic acid 0.5
10. SepiMAX ZEN * 3 0.3
11. Dipropylene glycol 6.0
12 Glycerin 2.0
13. Methylparaben 0.3
14 Purified water residue 15. Silicone-treated titanium oxide 3.0
16. Silicone-treated iron oxide 0.1
17. Silicone-treated talc 1.0
18. Silicone-treated mica titanium 1.0
19. (Dimethicone / Vinyl Dimethicone) Cross Polymer * 23 0.5
* 23 Trefill E508: manufactured by Toray Dow Corning

Example 9
(Foundation)
(mass%)
1. SepiMAX ZEN * 3 0.5
2. Phenyl trimethicone * 1 10.0
3. Isononyl isononanoate 16.5
4). Cyclopentasiloxane * 19 1.0
5. Dimethicone * 5 1.0
6). Ethylhexyl paramethoxycinnamate 3.0
7). Self-emulsifying glyceryl stearate 0.5
8). Polyoxyethylene (2) stearyl ether 1.0
9. Cetostearyl alcohol 0.5
10. Polyoxyethylene (5.5) cetyl ether 1.5
11. Phytosterol 0.5
12 Stearic acid 1.0
13. Dipropylene glycol 3.0
14 Glycerin 1.0
15. Methylparaben 0.2
16. Phenoxyethanol 0.3
17. Purified water 46.5
18. Octylsilylated titanium oxide 1.0
19. Silicone / amino acid-treated titanium oxide * 4 8.0
20. Silicone / amino acid-treated iron oxide * 4 1.5
21. Silicone / amino acid-treated mica * 4 1.0

Claims (5)

An oil-in-water makeup cosmetic comprising the following components (A) and (B), wherein the component (A) is contained in the aqueous phase and the component (B) is contained in the oil phase.
(A) 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, (meth) acrylic acid and / or an ester thereof, and a cross polymer containing N, N-dimethylacrylamide as a structural unit (B) a silicone compound, an amino acid, Hydrophobic powder containing titanium oxide that has been hydrophobized with a treating agent selected from alkylsilanes, fluorine compounds, and organic titanates, 0.1 to 30% by mass The oil-in-water makeup cosmetic according to claim 1, wherein the content of the component (A) is 0.1 to 5% by mass. The oil-in-water makeup cosmetic according to claim 1 or 2, wherein the component (B) contains titanium oxide treated with a silicone compound and / or an amino acid. The oil-in-water makeup cosmetic according to claim 3, wherein component (B) comprises titanium oxide treated with a silicone compound and an amino acid. The oil-in-water makeup cosmetic according to any one of claims 1 to 4, further comprising (C) silicone oil.