| 摘要 |
PURPOSE: New compositions comprising a liquid crystal is provided, which enhance skin penetration effect of specific hydroquinone derivatives for skin lightening. CONSTITUTION: A skin lightening composition comprises (a) a safe and effective amount of a compound of formula (I), (b) an average polarity solvent, (c) a polyhydric alcohol, (d) a solid fatty alcohol, (e) a nonionic surfactants, (f) water, and (g) lecithin wherein at least a portion of the above components (a), (b), (c), (d), (e), (f) and (g) forms a liquid crystal. The compound of the formula(I) have a good skin lightening effect in mammals, however it is expected to strengthen the penetration effect of the compound of formula (I) to mammal's skin.
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