| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel melanogenesis inhibitor which can safely inhibit blackening caused by ultraviolet rays and the like.SOLUTION: A melanogenesis inhibitor comprises a compound represented by the general formula (1) as an active ingredient (where, R is a hydrogen atom or an acetyl group, and a double line consisting of a solid line, and a dotted line is a single bond or a double bond, where the positions of the double bond are either 3a, 8a positions or 8, 8a positions, provided that if the positions of the double bond are 3a, 8a positions, R is not a hydrogen atom).SELECTED DRAWING: None |
