Patents

Transparent/SemiTransparent Cosmetic with Enhanced Amentoflavone Stability

US patent awarded to Amorepacific.

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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