Nutrition and Supplements Vitamins and minerals Solgar Methylcobalamin Vitamin B12 1000 mcg 30 Nuggets Methylcobalamin is the active, coenzyme form of Vitamin B12. While the body can readily absorb Vitamin B12 as cobalamin, it must further convert it to a coenzyme form, methylcobalamin, to become metabolically active. In this form, it is bioidentical to one of the two active forms found in the body. The "body-ready" Vitamin B12 in this formula is offered in a convenient nugget dosage form which is also suitable for vegans.*