From Manufacturer''s Label:

Methyl Folate((6S)-5-methyltetrahydrofolic acid or (6S)-5-MTHF) is the most biologically active form of folic acid.

Quatrefolicis the 4thgeneration development in folatedelivery. With certain inherited errors in metabolism and under a variety of physiologic stresses, the transformation of folic acid into the active form of folate either does not properlytake place or is inadequate.** Unlike folic acid, 5-MTHF can cross the blood-brain barrier.**

1000 Micrograms
The more stable, more bioavailable form of folate**

100 servings per container.

Manufactured by: Jarrow Formula