| 摘要 |
PROBLEM TO BE SOLVED: To provide a skin whitening agent composed of a plant extract and a skin external preparation for skin whitening comprising the same. SOLUTION: The skin whitening agent comprises an extract of Hedyotis diffusa (Willd.) Roxb. which is a plant belonging to the Hedyotis genus in the Rubiaceae family. COPYRIGHT: (C)2007,JPO&INPIT
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