ET uncovers the supplements that Hollywood stars from Jennifer Aniston to Oprah are taking to preserve their youthful glow.
Beauty nutritionist Paula Simpson, often referred to as the "Hollywood Pill Doctor," sat down with ET to unveil which natural supplements the stars are consuming in order to fend off aging and maintain healthy skin.
She says, for example, that an actress with radiant skin like Jennifer Aniston is more than likely taking polyphenols or green tea supplements to help her skin healthy while she tans.
Watch the video above to see all the supplements the stars are using to keep their glow.
For more information on Paula Simpson, visit her website
, and check out her other beauty secrets, including collagen shots by Lac Taut