| abstract |
(57) [Summary] [Structure] The following general formula (1) (In the formula, R 1 is a hydrogen atom or a lower acyl group, R 2 and R 3 are a hydrogen atom, a hydroxyl group or a lower acyloxy group, R 4 is a hydrogen atom or a lower acyl group, and a broken line indicates a double bond. The external preparation for skin containing the p-hydroxyphenylpropanol derivative represented by the formula (1) as an active ingredient. [Effect] The external preparation for skin of the present invention is excellent in the effect of improving pigmentation on the skin such as spots, freckles, and after sunburn, and is stable and highly safe. |