ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,132, issued on April 22, was assigned to The Procter & Gamble Co. (Cincinnati).
"Skin care composition" was invented by Matthew Clair Ehrman (Singapore), Wan Ting Chung (Singapore) and Zhi Yan Chew (Cincinnati).
According to the abstract* released by the U.S. Patent & Trademark Office: "A low-pH, aqueous skin care composition, comprising: a) 0.1 to 10% of a hydroxycinnamic acid (HCA); and b) 0.1% to 5% of a hydrotrope selected from the group consisting of: phenolic acid, derivatives of phenolic acid, phenolic alcohol, derivatives of phenolic alcohol, and mixtures thereof; wherein the hydrotrope has a pKA less than the formula pH; and wherein the hydrotrope has the partition coeffi...