Resveratrol Supreme contains the powerful polyphenol resveratrol, which is found in peanuts, berries, red grape skins, red wine, and the Japanese knotweed plant, also known as polygonum. Research has shown that resveratrol has very potent antioxidant properties, which among other things acts as a sirtuin activator — meaning it activates the SirT1 gene that is believed to provide healthy aging effects.* The polygonum source used in this product is standardized to 50% resveratrol, all in the trans-resveratrol form.