1 forms studied

Does vitamin b3 help with sunburn & sun sensitivity?

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 2000–0 mg · 2 studies · tested as Oral nicotinamide 2000 mg/day for 30 days