1 forms studied

Does vitamin b3 help with lack of focus?

Not on the evidence we can stand behind. Here is every form that has been studied for it, and what each one showed.

Form by form

Strongest first. Evidence for one salt or ester is not evidence for another, so each is rated on its own trials.

Trials used 1000–1000 mg · 1 study · tested as Plain nicotinamide, in 500 mg tablets. No salt, and not slow-release.