Folate supplementation can be important, especially for young women and expectant mothers. But common folic acid supplements aren't very efficient. Only a small percentage of folate actually makes it into the body. Quatrefolic changes everything with a scientifically advanced form of reduced folate that boasts long-lasting stability, high solubility and better bioavailability than leading brand name products. Swanson 400 mcg capsules deliver the perfect potency for those in need of moderate daily folate supplementation.