What it is
NAD+ is a coenzyme involved in electron transfer and enzyme systems including sirtuins and PARP-related biology.
Mechanism and research questions
- NAD+/NADH balance participates in cellular energy metabolism.
- NAD+-consuming enzymes make tissue availability and route important research variables.
Human evidence
Human studies exist for NAD-related interventions, but the results are not interchangeable across routes or products.
Preclinical / mechanistic evidence
Cell and animal work investigates aging biology, metabolism, DNA repair, and mitochondrial function.
Evidence summary
NAD+ biology is well established, while clinical claims about supplementation or infusion depend on specific formulations and trials.
Limits and interpretation
- NAD+ is a cofactor, not a peptide drug class.
- Route and stability can materially change the research question.
- No wellness or anti-aging guarantee is made.
Regulatory and identity note
Research cofactor; product and route determine regulatory treatment.