Since 1947 (Vitamin B12) Active Coenzyme Form of B12 Gluten, Wheat & Dairy Free Non-GMO Suitable For Vegans K-Parve Dietary SupplementMethylcobalamin 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 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.