02.04.13
US Patent No. 8,226,933 B2; Unilever has patented a method for treating skin. It entails a composition comprising retinoid at least one booster compound selected from the group consisting of farnesol, glycyrrhetinic acid and ursolic acid and a cosmetically acceptable vehicle, which is applied to the skin for treating wrinkles, psoriasis, age spots and/or discoloration.