| abstract |
PROBLEM TO BE SOLVED: To provide a skin external preparation which enhances the whitening effect of a hydroquinone glycoside, an alkoxysalicylic acid and / or a salt thereof, and α-glycosyl-L-ascorbic acid, and also has an excellent skin roughness improving effect. . SOLUTION: A whitening agent selected from hydroquinone glycosides, alkoxysalicylic acids, α-glycosyl-L-ascorbic acid, one or two or more betaine derivatives, a higher fatty acid, L-serine, D-serine, DL- One or more selected from serine, alanine and aminomethylpropanediol are blended. |