Est. 1973Dietary SupplementLab VerifiedGluten FreeA Brighter WayDiscussion: NADH is an active form of niacin. Niacin is an important cofactor in many metabolic processes and cellular energy pathways.Since 1973, we've scoured the globe for the highest-quality ingredients, connecting you with the most efficacious supplements that help you Live Brighter and embrace the moments that matter most.