21st Century Niacin Prolonged Release 250 mg Tablets, 110 Ea, 2 Pack

21st Century Niacin Prolonged Release 250 mg Tablets, 110 Ea, 2 Pack ; UPC: 740985228494. 21st Century's Niacin plays a key role in converting food into energy and helps maintain the normal function of nerves, skin and the digestive system.* Unconditionally guaranteed for purity, freshness and label potency. No added Sugar, Salt, Yeast, Preservatives, Artificial Flavors or Colors. 21st Century Vitamins and Supplements are manufactured in a GMP facility under the strictest standards for product quality, including potency and purity. 21st Century prides itself on providing you with a great product at the best value.