Natural Factors - Vitamin B12 Methylcobalamin 1000 mcg 210 Sublingual Tablets

Natural Factors Methylcobalamin B12 provides vitamin B12 in its most bioactive form. This one-per-day sublingual formula supports the normal function of the immune system, energy metabolism, red blood cell formation, and helps maintain good health. Methylcobalamin is readily absorbed and demonstrates exceptional activity immediately upon absorption, unlike cyanocobalamin.