Where to Buy NAD+
Research-Grade Sourcing Guide (2026)
Nicotinamide adenine dinucleotide (NAD+) is an essential coenzyme studied extensively for its roles in cellular energy metabolism, DNA repair, sirtuin activation, and mitochondrial function. Unlike most research peptides, NAD+ is also available as a consumer supplement — a fact that creates significant sourcing confusion. Research-grade NAD+ has different purity, documentation, and form requirements than supplement-grade.
At a Glance
Helixera Labs NAD+ — $49.95
Research-grade purity · Third-party tested · Same or next business day · For research use only
1. Research-grade vs. supplement-grade NAD+
NAD+ occupies an unusual position in the market — it is sold both as a consumer dietary supplement and as a research compound. These are not equivalent products.
| Property | Research-Grade NAD+ | Supplement-Grade NAD+ |
|---|---|---|
| Purity standard | ≥98% by HPLC from independent lab | Typically 95–98%, often self-reported |
| Documentation | Batch-specific COA, lot-matched | Generic COA or none; GMP certification only |
| Form | Lyophilized powder — research stable | Capsules, tablets, sublingual |
| Contaminant testing | Independent HPLC and identity verification | Varies widely; often label-claim only |
Research use only. NAD+ sold by Helixera Labs is for laboratory research use only. Not for human or veterinary use.
2. Form selection — what matters for research procurement
NAD+ for research is most commonly available as lyophilized powder (the oxidized form, NAD+). This is distinct from NADH (reduced form), NMN, and NR — precursors that are studied for their role in NAD+ biosynthesis rather than as direct NAD+ sources.
NAD+ (Oxidized) — Powder
Direct coenzyme form. Studied for cellular energy metabolism, sirtuin activation, PARP activity, and mitochondrial function. The most common form for direct NAD+ biology research.
NMN / NR (Precursors)
Biosynthetic precursors to NAD+. Studied for intracellular NAD+ replenishment pathways — a different research question from direct NAD+ supplementation. Not interchangeable for most research designs.
3. Vendor evaluation criteria
Research-Grade NAD+ — Vendor Checklist
- ≥98% purity by HPLC from an independent laboratory
- Identity confirmation — NAD+ vs. NADH vs. precursor clearly distinguished
- Batch-specific COA with matching lot number
- Lyophilized powder format for research stability
- Cold storage and handling documentation
- Research-only compliance language
Red flags: Supplement-grade sourcing presented as research-grade · No independent third-party testing · Ambiguous labeling conflating NAD+, NADH, NMN · Consumer supplement format sold as research material
4. 2026 pricing overview
| Format | Quality research vendor | Supplement channel |
|---|---|---|
| 500mg powder | $45–$70 | $25–$45 (supplement grade) |
| 1g powder | $75–$110 | $45–$70 (supplement grade) |
5. Helixera Labs NAD+
NAD+ — Research Grade Powder
Nicotinamide Adenine Dinucleotide · Lyophilized Powder · For research use only
- Research-grade purity — independently tested
- Batch-specific COA on request
- Lyophilized powder — research-stable form
- Same or next business day fulfillment from Ukiah, CA
- Free 2-day shipping on orders $150+
- Support: 1-866-463-0683
For research context, see the NAD+ Research Overview.
FAQ
Order NAD+ from Helixera Labs
Research-grade purity · Batch COA · Same or next business day · For research use only