Shiseido Company, Limited

Kahori Ishida

Taichi Harada

Kazuhiro Yamaguchi

Yosuke Ikebe

Takahiro Katori

Tsukasa Watanabe

An oil-in-water type emulsion cosmetic exhibits a high-level sunscreen effect and has a low viscosity and a high stability and is easy to use. The oil-in-water type emulsion cosmetic includes (A) an agar microgel, (B) one or more kinds of powders selected from (b1) a clay mineral powder and (b2) a highly oil-absorbing spherical powder, (C) a polyoxyethylene-hardened castor oil having an HLB value of 10-17; (D) an oil-soluble UV absorber, (E) 0.01-0.13 mass % of an (acrylate/alkyl acrylate (C)) cross polymer, and (F) 0-0.5 mass % of a UV scattering agent, and is characterized in that the viscosity at 25&#xb0; C. is not higher than 10,000 mPa&#xb7;s.

Oil-in-water type emulsion cosmetic

The present invention is intended to provide an organic UV absorber-free, non-chemical sunscreen cosmetic that contains hydrophobized zinc oxide and/or hydrophobized titanium dioxide as a UV scattering agent, specifically an oil-in-water emulsion sunscreen cosmetic that provides excellent emulsion stability and an excellent pleasant feel while maintaining high levels of UV protection.

Oil-in-water emulsion sunscreen cosmetic

Provided is an oil-in-water emulsion sunscreen cosmetic composition that can provide high protection ability against UVA and excellent emulsion stability. The oil-in-water emulsion sunscreen cosmetic composition is characterized in that it contains (A) a hydrophobized zinc oxide having an absorbance of 0.3 or more at a wavelength of 370 nm, (B) a UVA absorber being solid at room temperature, (C) a UVB absorber, (D) a liquid-state higher fatty acid, (E) a nonionic surfactant, (F) a volatile oil, (G) a quaternary ammonium compound having a long-chain aliphatic group and (H) water. Particularly, it is preferable that the hydrophobized zinc oxide has an average particle size within a range of 35 to 100 nm; the hydrophobized zinc oxide is hydrophobidized by use of hydrogen dimethicone; the quaternary ammonium compound having a long-chain aliphatic group is distearyldimethylammonium chloride; and the UVB absorber is octylmethoxy cinnamate.

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Yokohama, Japan

Kahori Ishida