Resveratrol 100 mg, 120 Tablets, Source NaturalsResveratrol 100 High Potency Resveratrol for Healthy Aging Resveratrol 100 provides 100 mg of pure natural trans resveratrol, from a root extract that has been standardized to 50% natural trans resveratrol for one of the most potent resveratrol products available! Resveratrol 100 is made from the most potent source of resveratrol known: the Japanese knotweed or Polygonum cuspidatum plant. Resveratrol has been shown to be a potent antioxidant clearing,