Where to buy NAD+.

You can buy NAD+ from three places, which is the whole answer to where to buy NAD+: a research-supply vendor, an IV clinic, or the supplement shelf. The vendor sells lyophilized powder for laboratory use, and the clinic sells you an infusion. The shelf sells a precursor molecule rather than NAD+ itself.

NAD+

Referenced in this guide

Batch-matched COAHPLC + mass specResearch use only

The NAD+ referenced throughout this article, supplied as a research compound with a certificate of analysis matched to the lot you receive — the check this site argues you should hold any supplier to.

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Where can you buy NAD+?

You can buy NAD+ from a research-supply vendor, from an IV clinic, or as an oral precursor off a supplement shelf. No pharmacy dispenses it, because no approved NAD+ drug exists to prescribe. NAD+ has more routes than most compounds here only because it's a small molecule rather than a drug.

• Research-supply vendors. $75–$300 per vial. Lyophilized powder sold under Research Use Only labeling. No prescription, no gatekeeper, and no regulator checking the batch.
• An IV clinic. $500–$1,500 per session. A doctor is on staff, the drip runs 2–4 hours, and the material comes from a compounding pharmacy. There's no FDA approval behind the marketed indications. Flush reactions such as chest tightness, facial flushing and anxiety are routine.
• The supplement shelf, for the precursors. $60–$80 a month for oral NMN or NR. No prescription. This is the molecule carrying most of the human randomized-trial data. The FDA rejected NMN as a dietary supplement in 2022, though enforcement has been patchy.

Which research-supply vendors to shortlist

Six vendors inside the research-supply route, ordered the way our supplier comparison orders them — on what each one will show you rather than what it claims — with every column pulled from the vendor's own storefront on 13 August 2026; there is no verified NAD+ price anywhere in that set, so pricing is benchmarked on BPC-157 across the same vendors and no price column appears here.

† Red Rock Peptides advertises that its products are verified with COAs and publishes no certificate at all, which is why it sits last rather than being left off. Stock varies by compound, so confirm a vendor actually lists NAD+ before you compare — what these columns describe is disclosure practice, and that is the part that travels across every compound a vendor sells. Disclosure: this site earns a commission on purchases made through its links, and Peptriva is one of the vendors it links to. Every column above is a document you can open or a page you can load yourself.

The identity check that separates this order from a cheaper precursor is the CAS number on the certificate: 53-84-9 is NAD+ itself, while 1094-61-7 is NMN — a different molecule at a different price, and the substitution is invisible on a label.

What is NAD+, and what does it do?

NAD+ is short for nicotinamide adenine dinucleotide, a cofactor every living cell uses to run its metabolism. It carries electrons in cellular respiration. It feeds the sirtuin enzymes SIRT1 through SIRT7, and the PARP enzymes that repair damaged DNA.

It also gets chewed up by an enzyme called CD38, which becomes more active with age, as Covarrubias and colleagues set out in 2021.

Here's the wrinkle you should know about before you spend anything. NAD+ levels fall with age, which is what fuels the whole "NAD+ boosting" market. But the published human trial evidence isn't on NAD+ itself. It's on the two oral precursors, NMN and NR.

The 2023 GeroScience dose-response trial randomized 80 middle-aged adults to placebo, 300, 600, or 900 mg NMN for 60 days. Blood NAD+ rose significantly in every NMN group, Yi and colleagues reported. That's the molecule with the trial data behind it. Not the infusion the clinics sell.

How do you verify NAD+ before you buy?

Four checks decide whether a NAD+ vial is what its label says: molecular identity against NMN and NR, the physical form, the purity threshold, and the IV-clinic markup. The standard eight vendor criteria all apply on top, but these four bite harder on a cofactor than on a peptide.

1. NAD+ vs NMN vs NR: molecular identity verification

This is the first thing to settle, before price. The three molecules are not interchangeable:

• NAD+: MW 663.43, CAS 53-84-9. The cofactor itself.
• NMN, nicotinamide mononucleotide: MW 334.22, CAS 1094-61-7. The direct precursor. Most of the human trial data lives here.
• NR, nicotinamide riboside: MW 255.23, CAS 1341-23-7. Sold as NIAGEN by ChromaDex. Multiple human trials.

Some vendors brand an NMN or NR product as an "NAD+ supplement" in the marketing copy while the ingredient line says NMN. Mass spectrometry settles it. NAD+ reads at [M+H]⁺ 664.4, NMN at 335.2, NR at 256.2. They're hundreds of daltons apart, so the test isn't a judgment call.

2. Form: lyophilized, light-protected, frozen

NAD+ falls apart in solution. The chemical bonds hydrolyze, light degrades it, and oxygen oxidizes it. The stable shipping form is freeze-dried powder, protected from light, held at −20°C.

Pre-mixed NAD+ shipped at room temperature reaches you at a concentration nobody can state. Nasal sprays and sublingual lozenges add a worse problem. NAD+ is a big polar molecule, and no published study has validated either route.

3. Purity threshold: ≥99% HPLC, not ≥98%

Cofactor-grade standards are tighter than peptide standards. Where ≥98% is the peptide benchmark, ≥99% HPLC is the cofactor one. Below 95%, you're likely holding degradation byproducts: nicotinamide, ADP-ribose and ADP, all of which will confound an experiment.

4. The IV-clinic markup, decoded

Third-party tested NAD+ runs $75–$150 per 500 mg vial. The $1,000 clinic price is real, but the material is a small slice of it. A 1,000 mg infusion uses roughly $150 of NAD+.

The rest pays for IV equipment, nursing labor, the 2–4 hour slow drip that keeps flush reactions down, and clinic overhead. We did the full arithmetic in NAD+ IV vs oral precursors.

What does NAD+ cost in 2026?

NAD+ costs $75–$150 per 500 mg vial from a research vendor, about $60–$80 a month as an oral precursor, and $500–$1,500 per IV clinic session. Pricing swings wider than it does for peptides, because those three routes sell genuinely different things.

• 100 mg vial: $40–$80, or $0.40–$0.80/mg.
• 500 mg vial: $75–$150, or $0.15–$0.30/mg. The most common size and the best per-mg value for lab work.
• 1 g vial: $140–$280, or $0.14–$0.28/mg. Common for IV-clinic procurement.
• IV clinic session: $500–$1,500 for a 500–1,000 mg infusion. About $150 of that is material.

Below $30 per 500 mg vial, you're most likely looking at partial degradation, underdosing, or NMN rebranded at NAD+ pricing. Above $0.40 per mg, you're paying retail markup rather than synthesis cost.

Is NAD+ legal to buy?

NAD+ is legal to buy in the US and isn't a controlled substance. It's a coenzyme present in every living cell. The regulatory status still splits three ways, one per route, and only the research route has a clean answer.

• Research-use NAD+: legal under 21 CFR § 809.10(b)(9) Research Use Only labeling. Not for human use.
• Oral NAD+ supplements: not FDA-approved, and poorly absorbed besides. The bigger decision in this lane was the FDA's 2022 rejection of NMN as a dietary-supplement ingredient, on the grounds it was already being studied as a drug.
• IV NAD+ at clinics: supplied through compounding pharmacies, with no FDA approval for any specific indication. A different regulatory framework from research-compound sales.

WADA has not explicitly listed NAD+ or its precursors as of 2026.

What are the red flags when buying NAD+?

Seven things would make us put a NAD+ vial back down. Most of them come back to the same question: has anyone actually confirmed which of the three molecules is in there?

• A vial labeled "NAD" without saying NAD+, NMN, or NR. Three molecules, hundreds of daltons apart, an order of magnitude apart in price.
• Nasal sprays or sublingual lozenges making stability claims. Neither route has been validated for NAD+ in a published controlled study.
• Pre-reconstituted solution shipped at room temperature. NAD+ is unstable in solution, so the concentration that reaches you is unknown without re-testing.
• Purity below ≥99% HPLC. Under 95%, expect degradation byproducts in the vial.
• Pricing below $30 per 500 mg vial. Usually degradation, underdosing, or rebranded NMN.
• Mass-spec not matching 664.4 [M+H]⁺. A reading of 335.2 means NMN. 256.2 means NR. No mass-spec at all means nobody has confirmed what's in there.
• Clinical claims on the product page. "Treats addiction." "Reverses aging." That's FDA jurisdiction, and a vendor writing it has told you something about itself.

NAD+

500 mg ≥99% pure Powder

500 mg of cofactor-grade NAD+ at ≥99% HPLC purity — the same molecule discussed across our IV vs oral precursors cost-effectiveness analysis. Lyophilized pale-yellow powder, CAS 53-84-9, mass-spec confirmed at [M+H]⁺ 664.4. COA with HPLC trace and mass-spec ships with every order.

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Frequently asked questions

Is NAD+ legal to buy?

Yes, as a research reference compound. NAD+ is a natural coenzyme present in every living cell, and it isn't a controlled substance. The complications sit elsewhere. Oral NAD+ isn't FDA-approved as a supplement. IV NAD+ ships through compounding pharmacies with no FDA approval for what it's marketed for. And the FDA rejected NMN as a dietary-supplement ingredient in 2022.

How much should NAD+ cost?

You'll pay $75–$150 per 500 mg vial at the cofactor-grade end, and $80–$300 across the wider market. IV clinics bill $500–$1,500 per session for about $150 of material. Below $30 per 500 mg vial means degradation, underdosing, or rebranded NMN.

NAD+ vs NMN vs NR, which is best?

They're three different molecules. NAD+ is the cofactor itself, NMN is the direct precursor, and NR converts to NMN first. The published human evidence sits with oral NMN and NR rather than oral NAD+, which is poorly absorbed. Research designed to match that literature usually works with a precursor.

Why is IV NAD+ so expensive?

The material costs about $150 per 1,000 mg dose. The rest of the $500–$1,500 covers IV equipment, nursing labor, the 2–4 hour slow drip that prevents flush reactions, and clinic markup. Whether that beats oral NMN at a fraction of the cost is contested. Our IV vs oral analysis walks through it.

Can I buy NAD+ without a prescription?

Yes, for third-party tested powder under Research Use Only labeling. A clinical IV requires physician oversight and a compounding pharmacy. Those are two separate markets that happen to share a molecule.

What should an NAD+ Certificate of Analysis show?

HPLC purity ≥99% with the chromatogram attached. Mass-spec at [M+H]⁺ 664.4. CAS 53-84-9 on the identity line. Karl Fischer water content. Residual solvents per ICH Q3C, a pharmaceutical industry standard. Bacterial endotoxin testing if the work is parenteral. An ISO 17025-accredited lab named on the report.

If the certificate doesn't separately confirm NAD+ rather than NMN or NR, that's the gap we'd walk away from.