This page is general educational information about a topic in the biohacking and wellness space. It is not medical advice. Talk to a qualified professional before making changes to your health routine. Research peptides referenced on this site are for laboratory research use only.
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme every cell needs for energy production and DNA repair. Its levels are known to decline with age, and that decline is linked to reduced cellular function. That is why raising NAD+ is one of the most studied ideas in longevity research.
Why NAD+ matters
NAD+ is involved in hundreds of reactions, but two stand out. First, it is essential for mitochondria to turn food into usable energy. Second, it fuels a family of repair and regulation enzymes called sirtuins that help maintain DNA and cellular health. When NAD+ falls, both processes lose efficiency.

The age-related decline
Studies show tissue NAD+ levels drop substantially between youth and old age. Because so many maintenance systems depend on it, researchers have asked an obvious question: if you restore NAD+, do those systems recover? That question drives interest in NAD+ precursors and in NAD+ itself as a research compound.
Go deeper on research peptides
The Axis Peptide Library has 100+ plain-English guides on peptides studied in recovery, metabolic, and longevity research.
Where it sits in research
NAD+ connects to many other longevity threads, from autophagy to senescent cells. Peptides such as MOTS-c and SS-31 are studied for mitochondrial and metabolic roles that intersect with this biology. All are research materials, and NAD+ is not a proven anti-aging treatment.
Key takeaways
- NAD+ is a coenzyme for energy production and DNA repair.
- Its levels decline substantially with age.
- That decline reduces mitochondrial and repair efficiency.
- Restoring NAD+ is a leading, but unproven, longevity research idea.
A note on research use
The peptides supplied by Axis Peptide Labs are reference compounds for laboratory and research use only. They are intended for qualified researchers working in academic, institutional, and analytical settings. They are not drugs, foods, cosmetics, or medical products, and they are not intended for human or veterinary consumption. Documented identity and documented purity are what matter most when sourcing a compound, both of which are published on the Axis certificates of analysis page.
