21st Century's Hi-Potency Sublingual Vitamin B-12 (Cyanocobalamin) promotes maintenance and growth of tissue and is essential for red blood cell formation.* Sublingual release vitamins quickly release nutrients into the blood stream under the tongue bypassing the digestive system. Unconditionally guaranteed for purity, freshness and label potency. No added Salt, Yeast, Preservatives, Artificial Flavors or Colors. 21st Century Vitamins and Supplements are manufactured in a cGMP 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. *This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.