Dietary Supplement. Value Size! Supports Heart Health & Energy Metabolism*. Vegetarian Formula. Time Release. 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. Laboratory tested, guaranteed quality. No artificial color, flavor or sweetener, preservatives, sugar, starch, milk, lactose, soy, gluten, wheat, yeast, fish. Sodium Free. Guaranteed Quality Laboratory Tested.