PROBLEM TO BE SOLVED: To provide a sirtuin 1 activating agent which has excellent sirtuin 1 activating ability and does not have such a problem that conventional resveratrol is oxidized and browned with heat, oxygen and light to deteriorate medicinal effects, to provide an activating composition, to provide an external preparation for skin, to provide a cosmetic, and to provide food.;SOLUTION: The sirtuin 1 activating agent is characterized by containing a pueraria root extract as an activating agent.;COPYRIGHT: (C)2011,JPO&INPIT
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