Product Description: Supplement for Heart and Healthy AgingSource 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 activates the SIRT1 gene, similar to the age-related health benefits of calorie restriction. Resveratrol may also promote heart health by providing antioxidant protection needed for healthy blood flow and suppressing inflammatory messengers