NAD+
Nicotinamide adenine dinucleotide — cellular redox cofactor studied in sirtuin and mitochondrial research.
NAD+ — nicotinamide adenine dinucleotide — is not a peptide at all, but a coenzyme so central to biology that no serious longevity-research catalog omits it. Every living cell uses NAD+ as the electron shuttle of energy metabolism and as the substrate for sirtuins and PARPs, the enzyme families most studied in aging biology.
Cellular NAD+ levels decline with age in essentially every tissue examined, and that decline is one of the most reproduced observations in geroscience. The research questions that follow — whether restoring NAD+ changes mitochondrial function, DNA-repair capacity, or senescence markers — drive a large and active literature.
Bench Grade supplies NAD+ as a research-grade lyophilized preparation with per-lot verification. Its molecular identity (663.43 g/mol, C21H27N7O14P2) is confirmed on every Certificate of Analysis.
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