Vitamin Supplement. Supports heart health & energy metabolism. US lab tested for potency. Vegetarian formula. Smart Facts: Niacin, also known as vitamin B-3, promotes heart health, energy metabolism and nervous system health. Niacin also helps maintain healthy functions of the digestive system and skin. This product is formulated to release niacin over a prolonged period of time. No artificial color, flavor or sweetener, no preservatives, no sugar, no starch, no milk, no lactose, no soy, no gluten, no wheat, no yeast, no fish. Sodium free. Laboratory tested. (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.)