Methyl Folate™ contains Quatrefolic® – the most biologically active form of folate – allowing rapid uptake into the bloodstream.* This superior, methylated form of folate is metabolically active and ready for the body to use since it requires no additional conversion to be absorbed.* Folate is also necessary for the conversion of homocysteine to methionine.* The 5-MTHF in this formula is also known as the “L” form of 5-MTHF since it is the reduced form of folate.