Patent ID: 6313214
Filing Date: 2001-11-06
Classification: A61K,A61P,A61Q

Abstract:
A composition for inhibiting melanin formation consisting essentially of a melanin production inhibiting amount of 0.01 to 10% by weight of a compound represented by formula (1) ##STR7##where R.sup.1 is --COOR.sup.6 or --COOX, where X is a group capable of forming a salt, R.sup.6 is hydrogen or C.sub.1 to C.sub.3 lower alkyl and R.sup.2 to R.sup.5 each represent hydrogen or methyl; and . . . A . . . is .dbd.C(CH.sub.3)--, --C(CH.sub.3).dbd., --C(.dbd.CH.sub.2)--, --CH(CH.sub.3)-- or --C(OH) (CH.sub.3)--; for external application to the skin.