NAD+ 500mg · Nicotinamide Adenine Dinucleotide · 99.5% Purity

What is NAD+?

NAD+ (Nicotinamide Adenine Dinucleotide) is the master cofactor for sirtuins (SIRT1-7), PARPs (DNA repair enzymes), and the mitochondrial electron transport chain. Cellular NAD+ declines roughly 50% from young-adult baseline to elderly baseline — the basis for one of the most active areas of modern anti-aging and energy research.

What is NAD+ used for?

Most-studied applications: cellular energy (ATP production), DNA repair capacity, sirtuin-mediated longevity research, metabolic recovery from alcohol and drug exposure, and cognitive function research. Often stacked with MOTS-c for mitochondrial support, with 5-Amino-1MQ for compound NAD-salvage protocols, and with Epitalon for telomere-axis longevity stacks.

How does it work?

Master cofactor for sirtuins (SIRT1-7), PARPs, and mitochondrial electron transport chain. NAD+ levels decline ~50% from young-adult to elderly baseline. Read our complete research hub for the full literature review, or jump to our best peptides for energy article for comparator molecules.

Why this listing?

Subcutaneous NAD+ research circumvents the bioavailability problems of oral nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN). Aeon Labs' batch NAD-2604-E tested 99.5% pure by HPLC. Cold-chain shipping mandatory.

How Peptide.best sources and verifies NAD+

Every NAD+ listing on Peptide.best comes from a verified vendor that has passed our onboarding audit — GMP-licensed manufacturing facility, documented chain of custody, third-party Janoshik Analytical testing on every batch, and a published Certificate of Analysis. Aeon Labs (the seller on this listing) currently maintains a 4.9-star average across all their products. Compare the five live offers on the right side of this page — Peptide.best forces vendors to compete on price and purity for the same SKU, so you always see the best current deal at the top, with the COA-verified purity, shipping speed, and seller rating side-by-side. Looking for alternatives in the same energy space? MOTS-c and the other peptides listed under our Energy category are the most commonly compared alternatives.

Commonly stacked with

MOTS-c · Epitalon · 5-Amino-1MQ · Sermorelin. See the peptide stacks page for full protocol writeups.

Compliance notice

NAD+ has not been evaluated by the FDA for any indication. All statements on this page are based on published research and are not medical claims. Some products may be sold for research purposes only as marked. Consult a licensed healthcare provider before use. See our full disclaimer.

Research literature

NAD+ has been the subject of growing peer-reviewed and preclinical research across the energy domain. The current PubMed index returns several hundred citations spanning mechanism, dose-response, and adverse-event reporting.

Key references commonly cited in NAD+ research:

• Mechanism papers covering master cofactor for sirtuins (sirt1-7), parps, and mitochondrial electron transport chain. nad+ levels decline ~50% from young-adult to elderly baseline.
• Dose-response work in rodent models (most studied species)
• Comparator-molecule trials vs. MOTS-c and other peptides in the same class
• Safety / pharmacovigilance datasets where available

For a full reference list, see the Peptide.best Research Hub or the dedicated Energy pillar article.

Standard research dosing

Standard research protocol: 100–500 mg subcutaneous or slow IV infusion, 1–3x per week, in 4–8 week cycles. SubQ injections may cause local discomfort — slow push technique is mandatory.

Reconstitution

This product ships as lyophilized powder. Reconstitute with Bacteriostatic water (5mL) for stable refrigerated storage. Once reconstituted, use within 30 days; keep at 2–8°C.

Protocol notes

For full protocols and stacking guidance, see our peptide dosing guides. Always start at the low end of the published range and titrate based on individual response. Half-life (~10 hours intracellular) determines dosing frequency.

Reported side effects

Most-reported: 'flush' sensation during injection (gone in 10–20 min), injection-site soreness, occasional nausea at high doses, transient elevated heart rate.

Contraindications

Do not use during pregnancy or lactation. Do not combine with other peptides without reviewing pharmacology. Consult a licensed healthcare provider before beginning any peptide research protocol. Discontinue immediately if any adverse reaction occurs and contact your provider.

Drug interactions

Limited interaction data exists for most research peptides. Be especially cautious when combining with prescription medications affecting the same physiological pathway as NAD+ (energy pathway).

Certificate of Analysis

Every batch of NAD+ sold on Peptide.best ships with a third-party Certificate of Analysis (COA) from Janoshik Analytical — the most-cited independent peptide testing lab in the research community.

Current batch testing summary

• Batch ID: NAD-2604-E
• Test date: 04/14/2026
• Peptide content (HPLC): 99.5%
• Mass-spec identity: Confirmed (target mass match)
• Endotoxin (LAL): Below detection limit
• Residual solvents: Within USP <467> limits

Download full COA PDF

For our overall testing process and chain-of-custody details, see Trust & Safety.

Q: Is NAD+ legal to purchase?

A: NAD+ is sold on Peptide.best for research purposes where applicable. Legal status varies by jurisdiction. See our disclaimer for full details.

Q: How long until I see effects?

A: Timing depends on protocol, dose, and individual response. Most users report observable changes within 2–6 weeks of consistent dosing per the standard research protocols. See the Dosing & Protocol tab.

Q: Can I stack NAD+ with other peptides?

A: Yes — see commonly stacked peptides in the Overview tab, or browse our peptide stacks page for full protocol writeups.

Q: Why is the price lower than pharmacy retail or other research sites?

A: Peptide.best aggregates verified vendors and forces them to compete in a single checkout. Vendors save on customer-acquisition cost; the savings pass to you. Every batch is still 3rd-party COA tested.

About Aeon Labs

Aeon Labs is one of the six verified vendor partners on Peptide.best. They maintain a 4.9-star average rating across all products and submit every batch to third-party HPLC analysis before it ships.

All Aeon Labs products on Peptide.best ship from a GMP-licensed contract manufacturing facility and are tested by Janoshik Analytical. Cold-chain shipping is included on temperature-sensitive products.