By Jena Nolan, Peptide Researcher & Sourcing Specialist, 6+ Years. Reviewed by Lily Kudrow, Editor. Updated September 25, 2026
Want to buy NAD+ for your lab, and vendors keep handing you capsules, IV clinics, and a map of vitamin stores. Fair enough. “NAD+” means a lot of things online. This guide covers the research-grade kind and what top suppliers tend to offer.
To compare them, we reviewed their listings. We checked identity data (CAS number, formula, molecular weight), analytical methods (HPLC and mass spec), COA status, price per mg, and published shipping/storage terms. Kylo Peptides had the best NAD+ listing of all.
Where to Buy NAD+: 3 Research Suppliers Compared
You can buy research-grade NAD+ from dedicated research suppliers that sell it as lyophilized (freeze-dried) powder with published lab data. Kylo Peptides and American Peptides list 500 mg and 1,000 mg vials at ≥99% purity. Biotech Peptides lists 100 mg, 250 mg, and 500 mg sizes, with COA images for each size.
Here’s a glance at what they offer.
| Supplier | Sizes | Listed Price | Purity | Testing | COA | Free Shipping |
| Kylo Peptides | 500 mg, 1,000 mg | [KYLO NAD+ PRICE RANGE] | ≥99% HPLC, identity confirmed | 4 named third-party labs | Lot-matched, released per lot | Over $150 |
| American Peptides | 500 mg, 1,000 mg | $100 / 500 mg; [AMERICAN 1,000 MG PRICE] | ≥99% | HPLC + mass spec, third-party | Downloadable for every lot | Over $300 |
| Biotech Peptides | 100 mg, 250 mg, 500 mg | $46 to $179 | 99% (listed) | Published COA per size | COA images per size | Over $200 |
Note: NAD+ may refer to supplements (like NR and NMN precursors), clinic-guided injections, or research compounds. Each category has its own regulations. This guide looks into the research-compound category only.
NAD+ vs. “NAD Peptide”: What Are You Actually Buying?
NAD+ is nicotinamide adenine dinucleotide, a coenzyme made of two nucleotides linked by a phosphate bridge. It has no amino acid chain, so chemically it isn’t a peptide. Research suppliers file it next to peptides because it’s studied in the same metabolic and cellular research domain.
- Kylo Peptides calls NAD+ “a nucleotide-based cofactor” and says outright that it isn’t a peptide.
- American Peptides lists its physical form as “Coenzyme (not a peptide).”
- Biotech Peptides titles its listing “NAD+ Peptide” and lists synonyms like Beta-NAD and Endopride.
PubChem files NAD+ under CID 925.
| Identifier | NAD+ |
| Full name | Nicotinamide adenine dinucleotide |
| CAS | 53-84-9 |
| Molecular weight | 663.43 g/mol |
| Formula | C21H27N7O14P2 |
| Form | Oxidized NAD |
| Chemical class | Dinucleotide coenzyme |
| Common synonyms | β-NAD, NAD, DPN, β-DPN |
NADH is a separate thing. It’s the reduced form, with its own CAS number (58-68-4), and we cover it further down.
NAD+ Supplier Comparison: What Each Vendor Publishes
Kylo Peptides
Kylo Peptides lists NAD+ in 500 mg and 1,000 mg vials as a lyophilized powder, with a ≥99% HPLC purity spec and identity confirmation. When we reviewed the listing, the compound details stood out: CAS 53-84-9, formula C21H27N7O14P2, 663.43 g/mol, plus a direct PubChem link. It also describes NAD+ as a nucleotide-based cofactor, which clears up the NAD peptide question on the spot.
Kylo’s batches go through ISO/IEC 17025 testing by 4 different labs: Vanguard Laboratory, Janoshik Analytical, Freedom Diagnostics, and Optiq Health Labs. Each order is released against a lot-matched COA tied to the lot number printed on the vial. The storage block is specific, too: −20 °C, sealed and dry, since NAD+ is hygroscopic (it pulls moisture from the air).
On the buying side, two vials save 5% and three save 10%. Members get 50% off with a one-time lifetime membership. Free shipping starts at $150, orders go out within 24 hours, and every order includes shipping protection plus a 30-day money-back policy.
If you want identity data, testing partners, and storage specs, Kylo is a solid place to start.
American Peptides
American Peptides lists NAD+ in 500 mg and 1,000 mg options, with the 500 mg vial at $100. When we viewed the listing, the COA section stood out. Both sizes had downloadable certificates, labeled Lot NAD500-0803 and Lot NAD1000-0803.
The vendor claims ≥99% purity verified by HPLC and mass spectrometry, with third-party testing and a COA for every lot. The spec block lists CAS 53-84-9, 663.43 g/mol, and a lyophilized powder format, and it describes NAD+ as a coenzyme. Storage is −20 °C, protected from light and moisture.
Orders ship from a U.S. facility; free shipping starts at $300, and Subscribe & Save offers up to 15% off. Confirm the free shipping cutoff at checkout.
If you like reading the COA before you spend a dollar, American Peptides makes that easy.
Biotech Peptides
Biotech Peptides has the widest size spread of the three: 100 mg ($46), 250 mg ($101), and 500 mg ($179). It synthesizes and lyophilizes its NAD+ in the USA. It lists molecular weight, formula, and synonyms. When we clicked through the image gallery, we found two-page COA images for each size, dated July 22, 2026, including lot 3140060 (100 mg) and lot 3140062 (500 mg).
Quantity pricing kicks in at 5 to 9 units (5% off) and 10 or more (10% off). Orders over $200 get free USPS Priority shipping, and orders placed by 12 PST ship the same day.
The listing is titled “NAD+ Peptide,” so lean on the formula and molecular weight for identity. Storage conditions also aren’t posted, so it’s worth a quick message to support before your order ships.
If smaller vials suit your project or you want to test the waters first, Biotech Peptides is worth a look.
NAD+ Prices Compared: Calculate the Cost Per Milligram
The fairest way to compare NAD+ prices is to divide the listed price by the milligrams in the vial. At current listings, American Peptides’ 500 mg vial works out to $0.20 per mg. Biotech Peptides runs from $0.46 per mg for 100 mg down to $0.358 per mg for 500 mg.
Here’s the full breakdown:
| Supplier | Size | Listed Price | Price/mg |
| Kylo | 500 mg | $49.98 | $0.09 |
| Kylo | 1,000 mg | $79.97 | $0.07 |
| American Peptides | 500 mg | $100 | $0.20 |
| American Peptides | 1,000 mg | $210 | $0.21 |
| Biotech Peptides | 100 mg | $46 | $0.46 |
| Biotech Peptides | 250 mg | $101 | $0.404 |
| Biotech Peptides | 500 mg | $179 | $0.358 |
Why Price Per Milligram Is More Useful Than Sticker Price
Price per mg shows what you’re really paying for per unit of the compound. Biotech’s 100 mg vial is the cheapest click at $46, yet it’s the priciest per mg on this list. Bigger vials usually win on value because testing, vials, and packing costs spread across more material.
Discounts change the math again. Kylo takes 5% off two vials and 10% off three. Its member price cuts the listed price in half. Biotech takes 5% off at 5 units and 10% at 10, and American’s Subscribe & Save goes up to 15%.
Shipping fees can quietly bump your real cost per mg. Free shipping kicks in at $150 (Kylo), $200 (Biotech), and $300 (American).
What Does the NAD+ COA Tell You?
A NAD+ Certificate of Analysis (COA) is the lab report behind a vial. A good one shows the compound name, lot number, test date, purity result, test method, identity confirmation, lab details, sample ID, and net content where provided. Together, those fields tell you what was tested, when, and how.
COA wording varies. Here’s how the common labels stack up:
- COA available: a report exists somewhere, maybe not for your lot.
- COA downloadable: you can open it on the page before buying.
- Lot-matched COA: the report’s lot number matches the number on your vial.
- COA on request: you ask support and wait for a copy.
American Peptides offers downloadable, lot-matched COAs for both sizes. Kylo ties each NAD+ order to a COA for the exact lot on the vial. Biotech posts dated COA images for each size.
Lots also rotate. In early July, American Peptides’ NAD+ page listed lots ending in -0401. By late September, those had moved to -0803. A COA older than your lot is a different batch’s report. So match the numbers every time.
NAD+ Purity: Is a 99%+ Claim Enough?
A 99%+ purity claim is a good start. It tells you how clean the main HPLC peak is. HPLC (high-performance liquid chromatography) separates a sample and measures how much of it sits in the main peak.
Identity, meaning proof that the peak is NAD+, comes from mass spectrometry. Mass spec weighs the molecule. It matters a lot for NAD+, because NAD+ and NADH differ by only two hydrogen atoms. The strongest listings show both methods plus third-party testing.
Insider tip: On a COA’s mass-spec line, NAD+ should show an [M+H]+ value near 664.1. NADH lands near 666.1. That one number tells you which molecule was tested. Our take: skip any NAD+ lot sold on an HPLC number alone.
| Supplier | Published Purity | Method/Documentation |
| Kylo Peptides | ≥99% | HPLC + identity confirmation, lot-matched COA |
| American Peptides | ≥99% | HPLC + mass spectrometry |
| Biotech | 99% (listed) | COA images per size |
Third-party testing adds one more layer. An outside lab has no stake in the result, so its report is considered more honest than an in-house number.
How to Verify an NAD+ Product Before You Buy
Think of this as the 4-point NAD+ Identity Audit. Run these four checks before checkout, and you’ll know exactly what you’re paying for.
1. Confirm the Compound Identity
Check for “NAD+” plus CAS 53-84-9, formula C21H27N7O14P2, and 663.43 g/mol. Synonyms like β-NAD or DPN are fine. The product label should match the same identity.
2. Review the Analytical Evidence
Look for a purity result with the method named (HPLC) and an identity test (mass spec). The report should name the testing lab and show a test date, preferably recent (no older than 6 months).
3. Match the COA to the Product
The COA’s lot number, product name, and vial size should match your listing. Then check the date and the result. A lab name you can look up adds confidence.
4. Compare the Actual Purchase Terms
Work out price per mg, then add discounts and shipping. Read the refund policy and published storage info. Small terms add up fast on repeat orders.
NAD+ Buyer Checklist
- ☐ Correct compound
- ☐ Correct size
- ☐ Current price
- ☐ Price per mg calculated
- ☐ Purity method published
- ☐ COA accessible
- ☐ Lot can be matched
- ☐ Testing information available
- ☐ Shipping terms reviewed
NAD+ Formats, Sizes, and Product Documentation Compared
All three suppliers sell NAD+ as lyophilized powder in sealed vials, in sizes from 100 mg to 1,000 mg. Smaller vials suit short or pilot lab projects. Larger vials lower the cost per mg. Documentation depth varies by supplier.
| Size | Kylo | American Peptides | Biotech Peptides |
| 100 mg | ✓ | ||
| 250 mg | ✓ | ||
| 500 mg | ✓ | ✓ | ✓ |
| 1,000 mg | ✓ | ✓ | |
| Lyophilized powder | ✓ | ✓ | ✓ |
| CAS on page | ✓ | ✓ | |
| Storage on page | ✓ | ✓ |
Picking a size comes down to how much material your project needs in total. Biotech’s 100 mg and 250 mg vials make sense for pilot runs or assay setup. The 1,000 mg vials from Kylo and American suit longer projects, since one larger vial means fewer lots to match and fewer COAs to track.
Does 500 mg always mean 500 mg of NAD+? Mostly, but check the form. All three suppliers list the free-acid form at 663.43 g/mol. Many lab reagent catalogs sell NAD+ as a monosodium salt (CAS 20111-18-6) at 685.41 g/mol. The sodium adds weight, so a 500 mg salt vial holds about 484 mg of NAD+. It’s like weighing a parcel with the box included.
NAD+ Powder vs Liquid: Why the Product Format Changes the Buying Question
All three research suppliers we reviewed here sell NAD+ as a dry powder. Liquid NAD+ online mostly belongs to consumer sprays and clinic products. For lab buyers, the powder format is ideal because NAD+ in solution starts breaking down over time.
A 2024 study in Molecules by Wolfe and colleagues tracked NAD+ and NADH in three lab buffers for up to 43 days. In the Tris buffer, NADH degraded 4 µM per day at 19 °C and 11 µM per day at 25 °C. That left over 90% and 75% remaining after 43 days. Phosphate and HEPES buffers showed rates up to 34 µM per day.
pH plays tug-of-war here. NAD+ breaks down faster at high pH, and NADH breaks down faster at low pH. The authors note a sweet spot around pH 8.5 for both.
So the buying question changes by format. With powder, ask about storage temperature and moisture. With any liquid, ask about the buffer, the pH, and when it was made. Powder is like instant coffee in a sealed jar. Add water, and the degradation clock starts.
NAD+ Shipping, Storage, and Purchase Policies
A quick look at how fast each supplier ships, how each one says to store NAD+, and what policies back your order.
Shipping
Kylo lists 24-hour dispatch, free shipping over $150, and shipping protection on every order. American Peptides ships from a U.S. facility with tracking, same-day before 12 pm CT, with free shipping over $300. Biotech ships the same day on orders placed by 12 PST, with free USPS Priority over $200.
Storage Information
Kylo says to store the lyophilized powder sealed and dry at -20 °C, and prefers −80 °C for extended storage. American Peptides lists −20 °C, protected from light and moisture, and 2 to 8 °C once reconstituted. Biotech doesn’t post storage details on its NAD+ page.
Purchase Policies
Kylo offers 5% and 10% multi-vial discounts, 50% member pricing, and a 30-day money-back policy. American Peptides has Subscribe & Save up to 15%, and Biotech has quantity discounts at 5 and 10 units. All three label NAD+ for research use only, and ask buyers to confirm they’re researchers above 21 years of age.
Why NAD+ Supplier Documentation Matters More Than a Product Listing Alone
A product listing tells you what a supplier claims. Documentation shows the evidence behind that claim for the batch you’ll receive.
- Product page: the name, size, and price.
- Specification: CAS, formula, molecular weight, and form.
- Analytical evidence: purity by HPLC and identity by mass spec.
- COA: the lab report, with a date and a named lab.
- Lot match: the COA’s lot number equals the one on your vial.
Each step narrows the gap between “what’s advertised” and “what’s in the vial.” A listing without steps 3 to 5 leaves you taking the supplier’s word for it. A listing with all five gives you solid evidence to check before buying.
NAD+ vs. NADH: What Is the Difference?
They are two forms of the same coenzyme. NAD+ is the oxidized form, ready to accept electrons. NADH is the reduced form, already carrying them. They have different CAS numbers and different molecular weights, so labs treat them as separate research materials.
| NAD+ | NADH | |
| Form | Oxidized | Reduced |
| Role | Electron acceptor | Electron carrier/donor |
| CAS | 53-84-9 | 58-68-4 |
| Formula | C21H27N7O14P2 | C21H29N7O14P2 |
| Molecular weight | 663.43 g/mol | 665.44 g/mol |
| Research material | Separate | Separate |
The two extra hydrogens add about 2 units of mass, and that gap is exactly why the identities separate on a COA. If your listing says NAD+, the COA’s identity result should say NAD+ too. A listing that shows the formula C21H27N7O14P2 points to the oxidized form.
FAQs
Does a 500 mg NAD+ listing mean the same thing across every supplier?
Usually, but check the form. Kylo, American Peptides, and Biotech Peptides list free-acid NAD+ at 663.43 g/mol. Some catalogs sell the monosodium salt at 685.41 g/mol, so 500 mg of salt holds about 484 mg of NAD+.
Why do some suppliers call NAD+ a peptide?
Mostly for shelving. NAD+ sits in the same research space as peptides, so many suppliers list it in their peptide catalogs. Chemically, it’s a dinucleotide coenzyme with no amino acid chain.
What does CAS 53-84-9 identify?
CAS 53-84-9 is the registry number for NAD+ in its oxidized, free-acid form. It’s the most reliable way to match listings, since product names and synonyms vary between suppliers.
What is the difference between HPLC and mass spectrometry on an NAD+ listing?
HPLC measures purity, meaning how much of the sample sits in the main peak. Mass spectrometry confirms identity by measuring the molecule’s mass. NAD+ should read near 664.1 as [M+H]+.
Why should the NAD+ lot number match the COA?
Each production batch gets its own lot number and its own test. A matching lot number means the COA describes the material in your vial. A different lot means you’re reading another batch’s report.
Can two NAD+ products have different purity results?
Yes. Purity depends on the batch, the lab, and the method used. Two 99% listings can still differ lot to lot. That’s why lot-specific COAs beat a single site-wide purity claim.
Why might the price per milligram change with quantity?
Fixed costs like testing, vials, and packing spread across more material in larger vials and multi-vial orders. Quantity discounts and free-shipping thresholds further lower the real cost per mg.
Final Thoughts
Buying NAD+ for research gets easier once you tune out the supplement and clinic noise. Match the identity data, check both HPLC and mass spec, and make sure the COA lot matches your vial. Then compare price per mg with shipping included.
All three suppliers we reviewed sell lyophilized NAD+ with published specs. If you want a clear identity card, named testing partners, specific storage guidance, and a lot-matched COA release on one page, Kylo’s NAD+ listing is a strong first stop.
Whichever you pick, keep the receipts: COA, lot, and date. A two-minute check before checkout saves a lot of second-guessing once the vial lands on your bench.
Disclaimer: The NAD+ products in this guide are sold as laboratory research materials. They’re not for human or veterinary use, and nothing here is medical advice. Prices, lots, and policies were checked on each supplier’s product page on September 25, 2026, and they can change.
This article provides general educational information and is not medical advice. Not for Human Use.
Disclaimer – Dr. Diana Rangaves, PharmD