Vitamin B-12 500 Mcg Tablets, By Natures Bounty - 100 Tablets Vitamin B-12 500 Mcg by Natures Bounty Tablets helps to maintain healthy functions of the nervous system. Description MANUFACTURER: NATURES BOUNTY. INDICATIONS: Vitamin B-12 500 Mcg Tablets, By Natures Bounty - The B vitamins play a role in energy metabolism in the body. Vitamin B-12 is essential for normal formation of blood cells and contributes to the health of the nervous system. INGREDIENTS: Active Ingredients: Vitamin B-12 500 mcg 8, 333%