| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a skin-improving and beautifully whitening agent for oral ingestion having a inhibitory effect of activation of melanocytes caused by ultraviolet light, etc., and also an improving effect for skin tension and luster. <P>SOLUTION: This skin-improving and beautifully whitening agent for the oral ingestion consists of the root stem part or an extract of the root stem part of a plant belonging to Dioscoreacea, especially Dioscorea composita and/or Dioscorea villosa. <P>COPYRIGHT: (C)2004,JPO |
