Resveratrol is an antioxidant found in the skin of red grapes, Japanese knotweed, peanuts, cocoa, etc. In fact, very small amounts of resveratrol can be found in red wine. It would take nearly 75-95 glasses of red wine to get the same amount of highly purified resveratrol that's in our Beta Glucan Plus from Japanese knotweed.
There is a lot of research pertaining to resveratrol and anti-aging properties. In fact, there are drugs in the works with resveratrol and aging.