21st Century, Prolonged Release Niacinamide, 500 mg, 110 Tablets

Energy & Circulatory SupportVitamin SupplementGluten FreeGuaranteed Quality - Laboratory Tested Niacin (vitamin B-3) plays a role in energy metabolism. Niacinamide is a good source of vitamin B-3 with a lower flushing effect than that of niacin. Prolonged release vitamins slowly release nutrients into the body over an extended period of time.