专利号:US-12036300-B2 优先权日:2021-03-31 标题:Methods and compositions for improving skin 发明人:LIAO I-CHIEN; BRIEVA PATRICIA; JUCHAUX FRANCK; BOUEZ CHARBEL; ZHENG QIAN; QIAN KUN 权利人:OREAL 摘要:A method for managing skin tone comprising reducing the synthesis of melanin by applying a skin treatment composition to skin. The skin treatment composition may include about 0.1 to about 25 wt. % of acetyl trifluoromethylphenyl valylglycine; about 0.5 to about 30 wt. % of a polyol; about 0.1 to about 30 wt. % of a silicone, fatty compound, or a mixtures thereof, wherein the skin treatment composition is an emulsion, and all weight percentages are based on the total weight of the skin treatment composition.