A cosmetic containing a solvent extract of trapae fructus according to the present invention has a large skin depigmental action, and inhibits a hyaluronidase action. In consequence, the lubricity and flexibility of the skin are maintained and aging is also prevented. In addition, the cosmetic of the present invention inhibits the production of active oxygen and has antioxydation, and therefore the oxidation of fatty acids is prevented, so that the production of peroxides is suppressed, which leads to the prevention of the aging of the skin. Therefore, the cosmetic of the present invention prevents rough skin and keep skin luster and skin elasticity in a good state. The safety of the trapae fructus to the skin of humans has been assured by using it as food for a long period of time.