* Immune Health * Good Health Naturally * Since 1996 * Supports Healthy Aging * Dietary Supplement * Kosher Plus Heart Health Resveratrol is a non-flavonoid polyphenol found in grape skins, and may protect cells from damage caused by free radicals. It is a popular supplement that may support healthy aging, a strong immune system, and cardiovascular health. Recent studies suggest that resveratrol may be a key factor in the longevity of people in wine drinking nations.