Science-Based Nutrition™ProfileProven Quality Assurance®98% Pure Trans-ResveratrolDietary SupplementVeganNon-GMO / Gluten Free / Soy FreeDoctor's Best High Potency Trans-Resveratrol 600 provides highly concentrated levels of trans-resveratrol (98% pure) from the root of the Japanese knotweed (Polygonum cuspidatum). Trans-Resveratrol is a unique antioxidant with the ability to cross the blood-brain barrier.This trans-resveratrol is guaranteed by the ProfileProven® Quality Assurance system developed by Ethical Naturals, Inc. This process includes the most extensive testing and screening at every stage of manufacturing to assure purity and potency.Trans-Resveratrol acts as a potent antioxidantHelps protect cells from free radical damageHelps reduce oxidative stress98% Pure Trans-Resveratrol