B-12 Methylcobalamin 5 000mcg Bonus Pack by Natural Factors 60 60 Chewable B-12 Methylcobalamin 5 000mcg Bonus Pack 60 60 Chewable Methylcobalamin is active immediately upon absorption while other forms (e.g. cyanocobalamin) must be converted to methylcobalamin in a two-step process. Methylcobalamin demonstrates exceptional activity in areas where other forms are simply not active. B12 supplementation is recommended for vegetarians and those suffering from B12 deficiency. Suggested Use As a dietary supplem...