Resveratrol 200™ For Heart and Healthy Aging Source Naturals Resveratrol 200™ contains 200 mg of pure resveratrol, a compound produced by grapes and other plants for protection from environmental stresses. Recent studies have demonstrated that resveratrol activates SIRT I genes, which mimic the healthy aging benefits of caloric restriction. Resveratrol may support heart health by providing the antioxidant protection needed for healthy circulation, and by inhibiting inflammation messengers including NF kappa B.* 200 mg Tablet Option Available: 30, 60, 120 Suggested Use: 1 tablet daily.