NAD+
Sourcing GuideSourcing NAD+ from research-grade vendors requires the QC framework that governs any peptide procurement: certificate of analysis review, lot-specific verification, third-party laboratory issuance, and — critically — endotoxin testing for injectable material. The fundamental redox cofactor and substrate for sirtuins and PARPs — declining levels with age are a hallmark of metabolic aging. The three-tier vendor market (pharmaceutical-grade compounded, reputable research-grade, grey-market) is described below.
Key Takeaways
Procurement lens: NAD+ sourcing requires lot-specific COA, HPLC purity ≥98%, mass spec confirmation matching 663 Da. Mechanism: Coenzyme for over 500 enzymatic reactions including oxidative phosphorylation, glycolysis, fatty acid β-oxidation, and the citric acid cycle. Storage: lyophilised at -20°C for 18-24 months; reconstituted at 4°C for 14-28 days. Vendor tier: pharmaceutical-grade compounded > reputable research-grade > grey-market (3-5x cost differential; quality differential substantially larger). Sourcing-validated stack partners: BPC-157, TB-500, GHK-Cu.
For procurement of NAD+, the relevant QC framework covers analytical purity (HPLC), structural identity (mass spec), microbiological safety (endotoxin), and stoichiometric correctness where applicable. Coenzyme for over 500 enzymatic reactions including oxidative phosphorylation, glycolysis, fatty acid β-oxidation, and the citric acid cycle. Critically, NAD+ is the substrate consumed by sirtuins (SIRT1-7) and PARPs — both depend on adequate NAD+ for their longevity- and DNA-repair-related functions. NAD+ levels decline approximately 50% from age 20 to 60. The subsections below address each QC layer and the vendor-tier landscape.
COA evaluation and red flags
Acceptable NAD+ certificates of analysis specify: (1) lot number matching the vial, (2) HPLC purity with chromatographic trace, (3) mass spec confirmation, (4) endotoxin testing for SubQ-route use, and (5) issuance from an accredited third-party laboratory. Template COAs that cannot be traced to a specific lot, COAs missing endotoxin data for injectable material, and COAs issued by the vendor's own laboratory rather than a third party are all sourcing red flags.
Vendor tier comparison and price discipline
Three vendor tiers operate in the NAD+ market: pharmaceutical-grade compounded prescription (physician-supervised, full COA, ICP-MS where relevant, highest cost), reputable research-chemical vendors (full COA, lot-specific, mid-tier cost), and grey-market unverified sources (template or absent COA, unverifiable supply chain, lowest cost). The price differential between tiers is roughly 3–5x; the quality differential is substantially larger and concentrated in the bottom tier.
Reconstitution and storage protocols
NAD+ is typically supplied lyophilised in glass vials for reconstitution with bacteriostatic water. Standard reconstitution: dissolve at 1–2 mg/mL, store reconstituted material at 4°C, and use within 14–28 days. Avoid freeze-thaw cycles of reconstituted material. Lyophilised storage at −20°C extends shelf life to 18–24 months for most peptides in this class.
Sourcing NAD+ for red flag detection use requires the same QC discipline as any peptide procurement: lot-specific COA, HPLC purity ≥98%, mass spec confirmation, endotoxin testing for injectable routes. Application-specific use does not relax the sourcing standard.
For users targeting mass spectrometry verification, the sourcing question is whether the chosen vendor consistently delivers analytical-spec material across lots. Repeated re-orders from the same vendor with mid-cycle COA spot-checks is the procurement pattern that catches lot drift before it affects results.
Pharmaceutical-grade compounded NAD+ is the lowest-risk sourcing path for vendor comparison use where the route permits, particularly for users with clinical supervision. Research-grade material from accredited vendors is the practical alternative; grey-market sourcing is not appropriate for this application.
Sourcing NAD+ for cold chain use requires the same QC discipline as any peptide procurement: lot-specific COA, HPLC purity ≥98%, mass spec confirmation, endotoxin testing for injectable routes. Application-specific use does not relax the sourcing standard.
| Goal | Route | Dose | Cycle |
|---|---|---|---|
| Standard protocol | IV | 100-1000 mg | 8–12 weeks on / 4 weeks off |
| Conservative starter | IV | 60-1000 mg | 4–6 weeks initial cycle |
| Sourcing Guide focus | IV | 100-1000 mg | 1x weekly IV; daily SubQ at lower doses |
| Maintenance phase | IV | 70-1000 mg | Ongoing with periodic pauses |
Dose timing for NAD+ is less time-sensitive given the longer half-life. Consistency through the cycle is more important than the precise clock time of individual doses.
NAD+ stacks well with compounds on complementary pathways. The pairings below are the conventional combinations from experienced peptide buyers.
- NAD+ + BPC-157: Upregulates VEGFR2 to promote angiogenesis and activates the FAK-paxillin pathway for accelerated tissue repair. Pairs naturally with NAD+'s mechanism in sourcing / quality / procurement protocols.
- NAD+ + TB-500: Binds G-actin monomers and prevents their incorporation into F-actin filaments, regulating the cellular actin pool. Pairs naturally with NAD+'s mechanism in sourcing / quality / procurement protocols.
- NAD+ + GHK-Cu: GHK chelates copper(II) and acts as a transcriptional modulator: published microarray data show it influences over 4,000 human genes including resetting expression patterns toward younger cellular phenotypes. Pairs naturally with NAD+'s mechanism in sourcing / quality / procurement protocols.
- NAD+ + Ipamorelin: Highly selective GHSR1a agonist. Pairs naturally with NAD+'s mechanism in sourcing / quality / procurement protocols.
Flushing common with IV (rate-dependent). Mild GI upset. Pretreatment with niacinamide can reduce flush.
Lens-specific safety considerations for sourcing / quality / procurement use of NAD+: Flushing common with IV (rate-dependent). Mild GI upset. Pretreatment with niacinamide can reduce flush. Additional sourcing / quality / procurement monitoring at baseline and 6–8 week follow-up is appropriate.
| Compound | Profile | Onset | Best For |
|---|---|---|---|
| NAD+ | Pyridine nucleotide cofactor | Hours; cellular pool dynamic | Sourcing Guide |
| BPC-157 | Stable gastric pentadecapeptide | ~4 hr (oral) | Accelerated tendon, ligament, and gut tissue repair via VEGFR2-driven angiogenesis and FAK-paxillin signalling |
| TB-500 | Synthetic thymosin β4 fragment | ~2-3 days | A 17-amino-acid synthetic fragment of thymosin β4 with actin-sequestering activity — drives cell migration, tissue repair, and broad regenerative effects |
| GHK-Cu | Tripeptide-copper complex | ~30 min plasma | A naturally occurring tripeptide-copper complex that declines with age and is studied for its broad effects on wound healing, skin remodelling, and gene expression |
| Ipamorelin | Selective GHRP / ghrelin mimetic | ~2 hr | The most selective ghrelin-receptor agonist among the GHRPs — stimulates GH release with minimal effect on cortisol, prolactin, or appetite |
What should I check on a NAD+ COA?
Lot variability across orders?
Storage protocol?
Visual quality inspection?
What is NAD+?
What is the evidence base for NAD+?
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Alukard provides GMP-certified physician-supervised sourcing with GMP-certified NAD+ and Pharmaceutical-grade compounds with full COA documentation.
Get ProtocolQuick Facts
- Molecular weight
- 663 Da
- Half-life
- Hours; cellular pool dynamic
- WADA
- Not on prohibited list
- FDA
- Approved by various routes for various uses; mass-dose IV is off-label
Stack Partners
All sourcing / quality / procurement applications described on this page are derived from preclinical research, animal models, and limited human case data. None of these uses are FDA-approved indications for NAD+ unless otherwise noted. Always work with a physician familiar with peptide therapeutics before beginning a protocol.
Start Your Sourcing / Quality / Procurement Protocol for NAD+
Alukard provides GMP-certified physician-supervised sourcing with Pharmaceutical-grade compounds with full COA documentation.
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