NAD+
Also known as Nicotinamide adenine dinucleotide
NAD+ is a coenzyme found in all living cells, central to energy metabolism and to the function of enzymes including the sirtuins. It is not a peptide at all, despite being sold alongside them: it is a dinucleotide. Cellular levels decline with age, which is the basis of most research interest.
Who has NAD+ in stock
| Supplier | Listing | Price | Per mg | |
|---|---|---|---|---|
| PEAK_PEPTIDEBest valueInternational | NAD+ | €29.99 | – | In stock, go |
| Certa PeptidesEU and UK | NAD+ | €35.99 | – | In stock, go |
| XL PeptidesUK | NAD+ 500mg Research Compound | £44.95 | – | In stock, go |
| Peptides UKUK | NAD+ 250mg | £49.95 | – | In stock, go |
| Baltic PeptidesEU and UK | NAD+ 500mg | €49.99 | – | In stock, go |
| True PeptidesInternational | NAD+ | US$81.00 | – | In stock, go |
| HiPeptidesUK | NAD+ | £99.00 | – | In stock, go |
| AminoPeptidesUK | SS-31 (10mg) & MOTS-c (10mg) & NAD+ (500mg) | Mito Peptide Bundle | £124.00 | – | In stock, go |
| HiPeptidesUK | NAD+ 500 mg Nasal Spray | £125.00 | – | In stock, go |
| HiPeptidesUK | NAD+ 1000 mg Nasal Spray | £200.00 | – | In stock, go |
Live stock is checked hourly at 10 suppliers. A further 7 vetted suppliers have no live feed yet, so we never show them as in stock. We earn a commission from some supplier links when you buy. It costs you nothing extra and never changes the order, which is by price per mg.
What it has been studied for
- Age-related decline in tissue NAD+ levels
- Sirtuin activity and DNA repair pathways in cell studies
- Precursor supplementation in early human trials
- Mitochondrial function in animal models
Evidence level: Early human data. Human data exists, but read the details above before assuming it applies to you.
What happened in human trials
Most human data is on oral precursors (NR and NMN), not injected NAD+. In a small study of intravenous NAD+, everyone reported cramping, nausea or chest pressure, and slow infusion was needed. NAD+ is not a peptide.
Not named on the prohibited list, but it has no approval as a medicine, so the catch-all S0 rule may apply. Check with UK Anti-Doping first.
UK legal status
Oral precursors such as nicotinamide riboside are sold as food supplements in the UK. Injectable NAD+ is not a licensed medicine.
Handling
Larger vial sizes than most peptides, so water volumes and click counts differ substantially. Light-sensitive and unstable in solution relative to lyophilised peptides. Commonly 100mg, 500mg or larger per vial.
Questions
Is NAD+ a peptide?
No. It is a dinucleotide coenzyme. It gets grouped with peptides commercially because it is sold by the same suppliers, but chemically it is a different class of molecule entirely.
What is the difference between NAD+ and NMN or NR?
NMN and NR are precursors: the body converts them into NAD+. They are taken orally and are sold as supplements in some jurisdictions. NAD+ itself is the end molecule.
Before you buy anything, run the four-question check for red flags that apply to you.