Raspberry ketone prevents and improves obesity and fatty liver by increasing norepinephrine-induced lipolysis in white adipocytes, it also can increase the fatty acid oxidation and suppressed lipid accumulation in 3T3-L1 adipocytes. Raspberry ketone has anti-melanogenic activity, it could be used to treat hyperpigmentation. Raspberry ketone enhances the differentiation of C3H10T1/2 stem cells into osteoblasts, and it may promote bone formation by an action unrelated to adipocyte differentiation. Raspberry ketone is a ketone that is 4-phenylbutan-2-one in which the phenyl ring is substituted at position 4 by a hydroxy group. It is found in a variety of fruits including raspberries, blackberries and cranberries, and is used in perfumery and cosmetics. It has a role as a metabolite, an androgen antagonist, a flavouring agent, a fragrance, a hepatoprotective agent and a cosmetic. It is a member of phenols and a methyl ketone.