This is a derivative of vit.b3 and a direct precursor to nicotinamide adenine dinucleotide(nad+)and its heavily researched for its potential to boost cellular energy,dna repair and anti aging properties,as nad+ levels naturally decline as the body ages,nmn that we get from natural sources(everyday foods) like cabbage,ovacado,broccoli, edamame among others are not enough for our body, supplementation is typically required,take two capsules daily with food for best results,we deliver to your doorstep.