This is everyday folate (vitamin B9) in its active form, and the real dose is smaller than the label's headline implies. The 667 mcg DFE on the front works out to about 400 mcg of actual **L-methylfolate**, since DFE units inflate the figure by roughly 1.7x. That puts you right at the standard maintenance and preconception dose, squarely inside the 400–800 mcg range used clinically.

Because it arrives as 5-MTHF, your body uses it directly without the MTHFR conversion step that limits how well 40–50% of people process folic acid, so this 400 mcg lands as fully usable folate. One tablet a day covers general folate needs, red blood cell formation, and the neural-tube support that matters most before and during early pregnancy. For a diagnosed deficiency or mood-specific goals you'd want a higher dose, but as a daily maintenance source this does exactly that.