| abstract |
PROBLEM TO BE SOLVED: To synergistically enhance the melanin production inhibitory effect, effective in preventing and improving pigmentation, spots, freckles, liver spots, etc. after sunburn, and markedly improved skin whitening effect. To provide a highly safe skin external preparation. SOLUTION: The following components, L-ascorbic acid excluding ascorbic acid glycoside and salts or derivatives thereof, 2-hydroxycarboxylic acid and salts or derivatives thereof, hydroquinone and derivatives thereof, cysteine and derivatives thereof, glucosamine And one or more selected from plants and algae having a melanin production-inhibiting effect with a derivative thereof, azelaic acid and its derivative, placenta extract, and an extract of a species of the genus Citrus spp. Add to the agent. |