NAD+ · Research brief

Wholesale NAD+: Bulk Pricing, Testing and MOQs

Real Peptides Research TeamEditorial

Updated September 9, 20268 min read

50 WORDS

Short answer

NAD+ is not a peptide. It sits next to peptides in most catalogues, gets stored next to them, and gets quoted by the gram like them, but nicotinamide adenine dinucleotide is a dinucleotide coenzyme with a formula weight of roughly 663.43 g/mol, and it degrades on a completely different pathway.

Key takeaways

NAD+ has a formula weight of roughly 663.43 g/mol and is a dinucleotide coenzyme, not a peptide, so peptide storage and QC assumptions do not transfer cleanly.
A wholesale NAD+ certificate of analysis is only useful when the lot number on the document matches the vial label and the HPLC chromatogram is attached.
Water content, measured by Karl Fischer titration, is the most decision-relevant number on a hygroscopic compound's COA because purity is reported on a dry basis.
Per-vial handling labour, not raw material mass, explains why many small aliquots cost more than fewer large fills at identical total weight.
Stock held domestically and dispatched within 24 hours removes customs holds and long ambient transit, which are the two largest uncontrolled variables in bulk NAD+ logistics.
Research-grade NAD+ is supplied for laboratory research only and is not an FDA-approved drug or a veterinary product.

We fill, document and dispatch research-grade material every working day, and the pattern in bulk NAD+ enquiries is remarkably consistent. Buyers negotiate hard on price per vial. Almost nobody asks about water content. That's backwards, and this page explains why.

What is wholesale NAD+?

Wholesale NAD+ is research-grade nicotinamide adenine dinucleotide supplied in bulk, usually as lyophilised powder in sealed glass vials, at tiered per-unit pricing that steps down as vial count rises. Every wholesale NAD+ lot should ship with a lot-specific certificate of analysis showing HPLC purity and identity confirmation. It is research-use-only material, not a drug product.

The common oversimplification is that bulk is simply retail in a bigger box. It isn't. Volume shifts the quality question from is this vial good to is this lot uniform, documented and traceable, and it shifts logistics from postage to transit temperature and hold time. What follows covers vial formats and paperwork, the real cost drivers behind a quote, and how to audit a supplier before money moves.

What arrives in the box, and what should arrive with it

Research-grade NAD+ ships as a lyophilised (freeze-dried) powder in a sealed glass vial with a rubber stopper and crimp cap, most commonly at 100 mg and 500 mg fill weights, with larger volumes quoted per gram. The powder should be white to off-white and free-flowing.

The chemistry matters here. NAD+ is hygroscopic, meaning it pulls moisture out of ambient air, and the oxidised form is unstable under alkaline conditions, hydrolysing toward nicotinamide and ADP-ribose. NADH, the reduced form, behaves in reverse: it is the acid-sensitive one. So a vial that looks perfect can still be carrying degradation products that only a chromatogram will reveal.

A credible wholesale NAD+ certificate of analysis names the lot and reports, at minimum:

HPLC purity with the actual chromatogram attached, not just a headline percentage
Identity confirmation by mass spectrometry against the expected molecular weight
Water content, typically by Karl Fischer titration
Appearance and solubility observations, plus the test date

Without the test date you cannot judge how much of the retest window has already been consumed in a warehouse.

Ask for the fill weight, the lot number and the document set to be written into the quote itself. Our team has found that suppliers who resist putting documentation into the quotation almost always resist producing it after payment too. That single request filters more risk than any amount of price haggling.

What actually moves the per-gram price

Six variables drive a bulk quote: raw material cost, fill weight versus vial count, lyophilisation cycle time, depth of quality control, cold storage and insulated shipping, and lot size. Notice that only one of those is the compound itself.

Vial count is the underappreciated one. Filling, stoppering, capping, labelling and inspecting are per-vial operations, so 100 vials at 100 mg costs meaningfully more to produce than 20 vials at 500 mg despite carrying the same mass of material. Buyers who need small aliquots pay for the handling, not the molecule.

Here's the insight most bulk NAD+ conversations skip entirely. HPLC purity is normally calculated on a dry basis, which means a 99% result says nothing about how much water the powder absorbed during filling and sealing. A hygroscopic compound that picked up moisture in a humid fill room can present an excellent purity figure and still be short on actual active mass per vial while carrying accelerated hydrolysis risk in storage. That's why we treat the water-content line as the most informative number on the page. A quote without it is not really a quote.

So what justifies a higher per-gram figure? Third-party testing rather than in-house only, tighter fill tolerances, genuine cold storage, and stock already sitting on domestic soil rather than in a container. Cheap material is often cheap because those four line items were removed.

Vetting a supplier before a bulk order goes out

Run the same short audit every time, and run it before the purchase order, not after. First, ask for the certificate of analysis for the exact lot you'll receive and check that the lot number on the document matches the label. Generic documents recycled across lots are the single clearest warning sign in this market.

Second, confirm the testing laboratory is named and independent, and that the chromatogram is included rather than summarised into one number. Third, ask where the stock physically sits. Material held in US warehouses can be dispatched within 24 hours, which removes customs holds and multi-week ambient transit from the equation entirely. Fourth, ask whether a multi-month programme can be filled from a single lot, because lot-to-lot variation quietly wrecks longitudinal comparisons.

Finally, read the terms. Research-use-only material is supplied to researchers and laboratories for laboratory investigation. It is not for human or veterinary consumption, NAD+ in this form is not an FDA-approved drug product, and no legitimate supplier will discuss administration to a person or an animal. Anyone whose interest in NAD+ began with a pet should talk to their veterinarian rather than a chemical supplier.

Everything on this page is sourcing and handling education for laboratory buyers, not guidance for use in people or animals.

Wholesale NAD+ Supply Options Compared

Four routes dominate bulk purchasing, and they differ far more in documentation and transit risk than in headline price. This table shows what each route realistically delivers.

Sourcing route	How MOQs are usually structured	Documentation you can realistically expect	Transit and temperature exposure	Bottom line
Single retail vials	No minimum, highest price per vial	Lot-level COA if the supplier publishes one	Short domestic hops, low cumulative risk	Sensible for method development and pilot assays, uneconomic beyond a handful of vials
Domestic wholesale tiers from US stock	Vial-count brackets that step per-unit price down	Lot-matched COA, HPLC chromatogram, identity confirmation	Shortest lane, dispatch inside 24 hours limits ambient hold time	The practical default for most multi-month research programmes
Overseas bulk API direct from manufacturer	Hundred-gram or kilogram minimums plus documentation fees	Manufacturer COA, independent verification usually at your own cost	Long lanes, customs holds, unverified warehouse conditions	Lowest headline price per gram, highest hidden QC and hold-time cost
Repackaged bulk from an unnamed intermediary	Flexible minimums, aggressive per-gram quotes	Frequently a COA with no chromatogram or no lot reference	Unverifiable chain of custody	Avoid, because you cannot audit what you cannot trace

What If: Bulk NAD+ Sourcing Scenarios

What if the certificate of analysis has no lot number on it?

Do not release payment until a lot-referenced document is issued. A COA without a lot number cannot be tied to the vials in front of you, which means the purity figure describes some other batch at some other date. This is the most common documentation failure in wholesale NAD+ transactions, and it is completely avoidable by requesting the document before dispatch rather than with the parcel.

What if a bulk shipment arrives warm?

Quarantine the vials, log the arrival condition with photographs, and contact the supplier before opening anything. Lyophilised powder tolerates short ambient excursions far better than solution, but heat plus absorbed moisture accelerates hydrolysis, and no visual inspection at the bench can confirm or rule that out. The literature does not define a universal excursion threshold for this compound, so treat the lot as unverified rather than assume either outcome.

What if one vial looks clumped or discoloured?

Set that vial aside, keep it sealed, and report the lot to the supplier immediately. Caking in a hygroscopic powder usually points to a stopper or seal failure that let ambient humidity in, and yellowing suggests the material has moved away from spec. Clumping in a single vial from an otherwise clean lot is a packaging event; clumping across several vials is a fill or storage problem and the whole lot needs review.

The Unglamorous Truth About Bulk Pricing

Here's the honest answer: most of the price spread you see between wholesale NAD+ suppliers is not margin, it's omitted work. Independent testing costs money. Cold storage costs money. Holding domestic inventory instead of drop-shipping from a container costs money. Strip those three out and you can undercut almost anyone on paper. The buyer absorbs that saving later, as an unverifiable lot, a customs delay, or a batch that no longer matches its own paperwork. Cheap material is rarely cheap chemistry. It's usually cheap documentation.

If you want to check how we handle the paperwork side before enquiring about volume, the lot-referenced certificates of analysis are published for lookup, our US stock locations explain why dispatch happens inside 24 hours, and the wider research peptide catalogue shows the same small-batch documentation standard applied across compounds.

Wholesale NAD+ buying rewards the least exciting habit in procurement: reading the second page of the certificate. The purity headline is marketing-adjacent by now, quoted by everyone, meaningful only in context. The chromatogram, the test date, the water content and the lot number are where a supplier's actual operating standard becomes visible, and they take about ninety seconds to check. Negotiate on price all you like once those four boxes are ticked. Skip them, and the per-gram figure you fought for stops describing anything you can rely on at the bench.

References

Peer-reviewed sources on NAD+ indexed in PubMed, listed for research context. Real Peptides supplies NAD+ for laboratory research use only.

NAD⁺ supplementation for anti-aging and wellness: A PRISMA-guided systematic review of preclinical and clinical evidence. Ageing research reviews, 2026. PMID 41655607. doi:10.1016/j.arr.2026.103057
NAD(+) restores proteostasis through splicing-dependent autophagy. Autophagy, 2026. PMID 41313318. doi:10.1080/15548627.2025.2596679
Endothelial NAD(+) depletion drives vascular senescence and neuroinflammation via mtDNA-cGAS/STING-CD38 signaling in Alzheimer's disease. Alzheimer's & dementia : the journal of the Alzheimer's Association, 2026. PMID 42033099. doi:10.1002/alz.71423
NAD+ and Sirt5 restore mitochondrial bioenergetics failure and improve locomotor defects caused by sucla2 mutations. JCI insight, 2026. PMID 41574612. doi:10.1172/jci.insight.181812
NAD(+) depletion drives age-related monocyte hyperinflammation after stroke and is reversed by nicotinamide riboside. Journal of neuroinflammation, 2025. PMID 41299539. doi:10.1186/s12974-025-03638-6
Lactate dehydrogenase A-coupled NAD(+) regeneration is critical for acute myeloid leukemia cell survival. Cancer & metabolism, 2025. PMID 40390151. doi:10.1186/s40170-025-00392-4
FOXO1-NMNAT3 axis dysregulation promotes doxorubicin cardiotoxicity: NAD(+) replenishment as a redox-targeted antioxidant therapy. Redox report : communications in free radical research, 2025. PMID 41021886. doi:10.1080/13510002.2025.2565033
NAD+ prevents chronic kidney disease by activating renal tubular metabolism. JCI insight, 2025. PMID 40059824. doi:10.1172/jci.insight.181443

Questions

Wholesale NAD+ is normally priced in vial-count or gram-weight tiers, with the per-unit figure stepping down as volume rises. The compound itself is only one input: fill weight, per-vial handling labour, lyophilisation cycle time, testing depth and cold shipping all feed the number. Pricing varies widely between suppliers and over time, so ask for a written quote that names the fill weight, lot and included documentation.

At minimum it should state the lot number, HPLC purity with the chromatogram attached, identity confirmation by mass spectrometry against the expected molecular weight, water content, appearance and the date of testing. The lot number on the document must match the vial label. A summary percentage with no chromatogram and no lot reference is not verifiable documentation.

Research-grade NAD+ is supplied to researchers, laboratories and institutions for in-vitro and laboratory research use only. It is not sold for human or veterinary consumption and is not an FDA-approved drug product. Suppliers typically require acceptance of research-use-only terms at checkout, and legitimate suppliers will not provide administration or protocol guidance of any kind.

Overseas bulk API usually shows the lowest headline price per gram but carries longer lanes, customs holds, unverified warehouse conditions and independent verification costs you absorb yourself. Domestic stock ships faster, which shortens ambient hold time, and lot-matched documentation is easier to obtain and audit. For research programmes where lot traceability matters more than unit price, domestic supply is generally the more defensible route.

Lyophilised NAD+ is hygroscopic and light-sensitive, so unopened vials are kept sealed, cold and dry, with freezer storage standard for long-term holding. Allow vials to reach room temperature before breaking the seal to reduce condensation inside the vial. Always follow the specific storage conditions printed on the supplier's certificate of analysis and label for that lot, since fill format and stabilisers differ between products.

NAD+ is the oxidised form of nicotinamide adenine dinucleotide and NADH is the reduced form, and the pair functions as the central redox couple in cellular metabolism. Their stability profiles are opposites: the oxidised form is more vulnerable under alkaline conditions, while NADH is the acid-sensitive one. Buffer pH therefore needs to be specified deliberately depending on which form your assay uses.

Material already held in US warehouses can be dispatched within 24 hours of an order clearing, which is the main practical advantage of domestic stock over imported supply. Domestic dispatch removes customs inspection and long ambient transit, the two largest uncontrolled temperature variables in bulk shipping. Delivery time after dispatch depends on the carrier service selected.

The three recurring failures are documentation that does not match the lot supplied, moisture ingress from a compromised stopper or seal, and heat exposure during a long or delayed transit. All three are invisible to visual inspection alone, which is why the chromatogram and water-content figures matter. Quarantine and photograph any shipment that arrives warm, damaged or caked before opening it.

Not automatically, so ask. Single-lot fulfilment matters for longitudinal work because lot-to-lot variation introduces a confound you cannot correct for after the fact. If a multi-month programme needs consistency, request single-lot allocation in writing at the quotation stage and confirm the retest date leaves enough usable window.

No. Research-grade NAD+ is laboratory material supplied under research-use-only terms with lot-level analytical documentation, and it is not formulated, labelled or approved as a drug, supplement or veterinary product. Consumer wellness products sit under an entirely different regulatory framework. Anyone with a health or animal-health question should raise it with a licensed physician or veterinarian rather than a research supplier.

RESEARCH USE ONLY · NOT EVALUATED BY THE FDA