Product Description: Supplement for Heart and Healthy Aging Source Naturals Resveratrol 200™ contains 200 mg of pure resveratrol, a compound produced in grapes and other plants that helps protect against environmental stress. Recent studies have shown that resveratrol may provide the healthful aging-related benefits of calorie restriction by activating the SIRT I gene. Resveratrol may also promote heart health by providing antioxidant protection needed for healthy blood circulation and suppressing inflammatory messengers