Patents

Transparent/SemiTransparent Cosmetic with Enhanced Amentoflavone Stability

US patent awarded to Amorepacific.

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By: Christine Esposito

Editor-in-Chief

US Patent No. 11,298,307 B2 (Byung Ryol Paik, Soon Ae An, Joon Young Hwang, Yong Jin Kim, Byung Fhy Suh); Amorepacific Corporation patented for a cosmetic product comprising a transparent or semitransparent cosmetic composition having enhanced amentoflavone stability.

The cosmetic is comprised of a first agent containing hydrotrope; a second agent consisting of a water-soluble amentoflavone-oligomer complex, a polyhydric alcohol for stabilizing the amentoflavone, and optionally distilled water or glycerin; and a two-liquid type container storing the first agent and the second agent, respectively, resulting in a mixture of the first agent and the second agent before use.

The water-soluble amentoflavone-oligomer complex encapsulates the amentoflavone in a cavity structure of an oligomer structure formed from a hydrophilic natural polymer. The water-soluble amentoflavone-oligomer complex is contained in an amount of 0.2 to 30% by weight based on the total weight of the second agent.

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