Extracts from red grape skin offering the French Paradox. With pterostilbene, Co-Q10, Hesperidin and Pine Bark. Antioxidant / cardio maintenance. Resveratrol extracted from Polygonum cuspidatum (Japanese Knotweed) is widely available but is considered inferior to the resveratrol extracted from red grape skin. Resveratrol Complex Veg Caps is part of the Viridian Nutrition range of nutritional supplements and beauty products dedicated to Purity, the Environment and Charity.