Natural Factors, Vitamin B12, 1,000 mcg, 60 Tablets

Dietary SupplementCyanocobalaminSuitable for Vegetarians/VegansPurity & Potency Guaranteed Cyanocobalamin (vitamin B12) is necessary for energy production, nervous system function, and for the production of cells, especially red blood cells. Isura™: Non-GMO: Documentation ? Mass Spec: Lab Tested ?