Provided are a sirtuin 1 activator and a skin cosmetic for sirtuin 1 activation using a natural extract with high safety as an active ingredient. As an active ingredient of the sirtuin 1 activator of the present invention, an extract of echinacea and/or banana is used. In addition, the extract of echinacea and/or banana is blended in the skin cosmetic for Sirtuin 1 activation of the present invention.
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