Free shipping on all orders over $50
7-15 days international
20 people viewing this product right now!
30-day free returns
Secure checkout
66519039
5-MTHF, provided as Quatrefolic, is the most biologically active form of the water-soluble B vitamin, folic acid. It is the preferred form of folate supplementation due to an array of conditions that can limit conversion or absorption of folic acid. Data indicates that supplementing with 5-MTHF increases plasma folate more effectively than folic acid.