| abstract |
PROBLEM TO BE SOLVED: To provide a skin external preparation excellent in skin whitening effect such as prevention of pigmentation on skin such as spots, freckles and after sunburn, and which is stable, highly safe and the like. SOLUTION: At least one kind of a compound represented by the following general formula (1) and a salt thereof is contained. Embedded image (In the formula, R represents a linear or branched alkyl group having 1 to 18 carbon atoms or a cycloalkyl group having 3 to 8 carbon atoms.) |