This product contains the powerful polyphenol resveratrol, which is found in peanuts, berries, the skin of red grapes, red wine, and in the Japanese knotweed plant, also known as polygonum. Resveratrol research has proven it to be a very potent antioxidant which, among other things, acts as a sirtuin activator, meaning it activates the SirT1 gene, which is believed to provide healthy aging support.* The polygonum source used in Resveratrol Supreme is standardized to 50% resveratrol, all in the trans form.