Jarrow Formulas, Methyl Folate, 400 mcg, 60 Veggie Caps

(6S)-5-Methyltetrahydrofolate Glucosamine Salt 4th Generation Folic Acid Technology The More Stable, More Bioavailable Form of Folate Quatrefolic?? Dietary Supplement Vegan Suitable for Vegetarians/Vegans Methyl Folate ((6S)-5-methyltetrahydrofolate or (6S)-5-MTHF) is the most biologically active form of folate. Quatrefolic?? is the 4th generation development in folate delivery. With certain inherited errors in metabolism and physiologic stresses, the transformation of synthetic folic acid into the active form of folate is inadequate. Unlike folic acid, 5-MTHF can cross the blood-brain barrier.