| 摘要 |
PURPOSE: A skin whitening composition containing an extract of asparagus obtained by sequentially exposing the asparagus to two or more solvents of varying solvent strengths is provided. The composition can be topically applied to the human skin and is able to suppress melanogenesis as the data clearly indicate despite an inability to inhibit the activity of tyrosinase. CONSTITUTION: The skin whitening composition contains: about 0.01 to 20%(w/w) of a plant extract obtained by sequentially exposing a plant to two or more solvents of varying solvent strengths; and additionally one or more cosmetically acceptable ingredients. The plant contains asparagus, black cohosh or a mixture thereof. The asparagus is Asparagus officinalis. The black cohosh is Cimicifuga racemosa L. The root and shoot portions of the asparagus can be separately used to obtain the extract. The composition may be prepared in various forms, and is desirably prepared in a form that facilitates topical application. Accordingly, suitable forms of preparation include a cream, ointment, foam, lotion, plaster, gel, and emulsion.
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