5-MTHF, also known as methylfolate, is the active form of the vitamin folate, and can be used by the body immediately. Vimergy 5-MTHF provides 5mg of highly-absorbable methylfolate per capsule to support your brain health. The addition of 500mcg of B12 from a blend of adenosylcobalamin and methylcobalamin brings further enhancement to Vimergy 5-MTHF.