PureMelt B12 FolateVitamin B12 folate in dissolving and tasty tablet PureMelt B12 Folate provides activated B vitamins in a tablet form that dissolves in the mouth without requiring water. Each tablet provides 1,000 mcg of methylcobalamin (the active form of vitamin B12) and 400 mcg of Metafolin L 5 methyltetrahydrofolate (L 5 MTHF), the universally metabolized natural form of folate. Optimal levels of these B vitamins have been linked to cellular, cardiovascular,