| 摘要 |
An oriental medicine plant extract is provided to show excellent harmful oxygen scavenging capability and melanogenesis inhibitory effect, thereby being used for a cosmetic composition with excellent antioxidation and skin whitening effect. An oriental medicine plant extract is characterized in that it is prepared by: (a) mixing 10-30 parts by weight of Angelicae dahuricae Radix, 10-30 parts by weight of Atractylodis macrocephalae Rhizoma, 2-10 parts by weight of poria cocos wolf, 2-10 parts by weight of Bletilla striata Reichb. fil. and 2-10 parts by weight of Asarum sieboldii to prepare an oriental medicine mixture; and (b) heating the mixture with a solvent selected from the group consisting of water, ethanol, methanol, butanol, hexane, ethylacetate, butylene glycol, propylene glycol, dipropylene glycol, glycerine and a mixture thereof at a temperature of 50-100 deg.C for 1-20 hour(s) or precipitating the mixture in a solvent selected from the group consisting of water, ethanol, methanol, butanol, hexane, ethylacetate, butylene glycol, propylene glycol, dipropylene glycol, glycerin and a mixture thereof at a temperature of 5-40 deg.C for 1-15 day(s). A cosmetic composition comprises 0.001-30 wt.% of the oriental medicine extract and the remaining amount of a cosmetic base.
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