| abstract |
PROBLEM TO BE SOLVED: To provide a pigmentation inhibitor which has a superior melanin production inhibitory activity and dendritic projection inhibitory activity as compared with those conventionally provided, and is excellent in stability and safety. To do. SOLUTION: The following formula (I): A pigmentation preventive agent which contains augonin represented by the following formula as an active ingredient, and uses a tyrosinase inhibitory action, a dendritic formation inhibitory action or a melanin formation inhibitory action of the compound, and a skin cosmetic and a skin external preparation containing the same . |