Solgar's Sublingual Methylcobalamin (Vitamin B12), 1000 mcg, 60 Nuggets is the active, coenzyme form of B12 that your body needs. Methylcobalamin is essential for optimal health and energy, and this formula ensures that you are getting the most bioavailable and efficient form of Vitamin B12. While the body can easily absorb cobalamin, it must be converted to methylcobalamin to become metabolically active. This body-ready Vitamin B12 is identical to the dominant and active form found in your body, making it highly effective. The convenient nugget dosage is perfect for those on-the-go. This formula is suitable for vegan diets. Free from egg and gluten.