11.11.22
US Patent No. 11,491,095 B2 ( Ryuta Azuma, Ryo Kakimoto, Takayuki Kimura); Kosé Corporation, Tokyo, has been awarded a US patent for a colorless oily makeup cosmetic. It contains (a) one or two dyes selected from Red No. 218 and Red No. 223; wherein content rate of the component (a) is 0.01 to 1.0% by mass relative to the mass of the cosmetic and (b) an oil agent, wherein the mixture of the (a) and the (b) are at a mass ratio (a):(b) of 0.1:100, the mixture having a difference of 0.2 or less between a maximum absorbance and a minimum absorbance in a wavelength region of 500 to 600 nm. Component (b) is polyglyceryl-2 triisostearate having methyl-branched isostearic acid groups wherein content rate of the component (b) is 65 to 99.9% by mass relative to a mass of the cosmetic.
The colorless cosmetic develops a red color on application onto skin and/or a lip.
The colorless cosmetic develops a red color on application onto skin and/or a lip.