5-MTHF (as Quatrefolic®) is the most biologically active form of folate — the preferred choice for those with conditions limiting folic acid conversion. Increases plasma folate more effectively than folic acid.*Key Ingredients:5-MTHF (as Quatrefolic®)Form: Capsule*These statements have not been evaluated by the FDA.XYMOGEN® Quality Standards ✅ Practitioner-Exclusive FormulaAvailable through licensed providers — not sold in retail stores ✅ cGMP Certified ManufacturingPharmaceutical-grade facility, every batch quality verified ✅ Third-Party TestedPurity, potency, and label accuracy independently verified ✅ Bioavailable Nutrient FormsActive, methylated, and chelated forms for superior absorption ✅ Available Through VitaScripts PharmacyAuthorized access — our pharmacists ensure proper fit for your protocol