| 摘要 |
PURPOSE: Provided is a skin whitening cosmetic composition which contains, as an active ingredient, lignan derivatives which are extracted from Machilus Thunbergii and have excellent inhibiting effect on melanin synthesis. Therefore, the composition is harmless to the human body. CONSTITUTION: The kin whitening cosmetic composition which contains, as an active ingredient, lignan derivatives represented by the formula(I), wherein R1-R6 are independently hydrogen, hydroxy group, C1-C3 lower alcohol group or alkoxy group; and A and A1 are independently hydrogen or C1-C3 lower alcohol, or coupled together by oxygen or sulfur atom.
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