What Is Cyanocobalamin (Vitamin B12)? Cyanocobalamin is a synthetic form of vitamin B12. Vitamin B12 is an essential, water-soluble vitamin that is abundantly present in meat, fish, eggs, and dairy products. This product is standardized to 1% Cyanocobalamin. Cyanocobalamin (Vitamin B12) Benefits † Cyanocobalamin (vitamin B12) supports healthy nerve function, provides energy, and maintains healthy metabolic function. It is heart-healthy and helps support cardiovascular function. Supports healthy nerve function Provides energy Supports eye health Maintains healthy metabolic function Heart-healthy Promotes cardiovascular health