Patent ID: 9084724
Filing Date: 2015-07-21
Classification: A61K,A61Q

Abstract:
1. A method of making a water-in-oil type emulsion sunscreen cosmetic comprising: mixing (a) octocrylene, (b) hydrophobized zinc oxide having a coating of (c) cationic surfactant on a surface of the hydrophobized zinc oxide, and (d) silica powder consisting of silicic anhydride to make an oil phase; and adding a water phase to the oil phase to make the water-in-oil type emulsion sunscreen cosmetic, wherein an amount of the (c) cationic surfactant is 0.5 to 10% by mass with respect to the (b) hydrophobized zinc oxide, and an amount of the (d) silica powder is 0.1 to 20% by mass with respect to the cosmetic.