Now B-12 Liquid B-Complex Vitamin B-12 (Cyanocobalamin) is a water soluble vitamin needed for the maintenance of a healthy nervous system and for the metabolic utilization of fats and proteins. Nerve stability and energy support. Vitamin B-12 is also essential for the synthesis of DNA during cell division and is especially important for rapidly multiplying cells, such as blood cells. In addition, adequate intake of vitamin B-12, along with folic acid and vitamin B-6, is critical for the conversion of homocysteine to methionine, thereby supporting a healthy cardiovascular system. B-12 is stored in the liver, dietary sources are of animal origin only (meat and dairy). Supplementation with B-12 may be especially important for strict vegetarians. Recommended use: Shake well. In the morning, take 1/4 teaspoon, hold in mouth for 30 seconds, then swallow. Take with a meal. Refrigerate after opening to maximize freshness. Xylitol is harmful to pets. Seek veterinary care immediately if ingestion is suspected.