The most-studied resveratrol isomer. A natural antioxidant for cardiovascular health.*. What is resveratrol? . Resveratrol a substance found in grape skins and seeds and red wine is an antioxidant polyphenol. Resveratrol exists as cis and trans isomers and is produced by many plants including grape vines in response to environmental stress such as drought UV radiation from sunlight and fungal infections. . How does resveratrol support health? A natural antioxidant for cardiovascular health.*. Scientific evidence indicates the polyphenol resveratrol is responsible for the cardioprotective properties of red wine.*. Why choose Vitacost Trans-Resveratrol? Each capsule provides 500 mg of trans-resveratrol the most-studied resveratrol isomer. Offers the benefits of red wine without the alcohol and sugar. Contains 30 servings per bottle. Suitable for vegetarians. About Vitacost. Vitacost nutritional products are manufactured to high standards of quality efficacy and safety. Each Vitacost product meets or exceeds the standards and requirements set forth in the FDA’s Code of Federal Regulation (21 CFR 111) Current Good Manufacturing Practices (CGMP). . . *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose treat cure or prevent any disease.