Where to buy NAD+ (nicotinamide adenine dinucleotide) in the UK: the sellers with a verifiable COA

The newest verifiable NAD+ certificate on any UK seller's website is on Mercia Research (merciaresearch.com), analysed 15 Sep 2026 (task #231810 on Janoshik's site); 10 verified sellers hold one covering NAD+, listed newest first below.

A record of paperwork, not a recommendation: The Peptide Watch sells nothing, takes no money from sellers and links to none of them.

Who has the newest report · Why the date matters · What purity means · What NAD+ is · Regulators · Every report

Who holds the newest NAD+ report (10 verified UK sellers)

Newest report first. Every report was opened on Janoshik's own website and names the seller as the client. The date is the analysis date printed on the report. The verify link opens the laboratory, never the shop. Audit findings, not recommendations.

Why the date on a certificate matters

What a purity figure means

The purity on a Janoshik report is the share of the main peak in an HPLC chromatogram. 99.5% means that 99.5% of what the detector saw was one substance and 0.5% was something else. It is not the amount in the vial: that is the separate quantity line, in milligrams. It does not by itself prove which substance the peak is: that is identity, confirmed by mass spectrometry. And it says nothing about sterility, endotoxins or heavy metals, which are separate tests.

A purity figure printed on a shop page with no report behind it is a claim, not a measurement. Between two reports, the difference that matters is rarely 99.2% against 99.8%; it is whether the report exists at all, names the seller as the client, covers this compound on its own, and is recent.

What NAD+ is, and what it is sold as

NAD+ is not a peptide at all but a coenzyme every living cell makes; UK research-peptide shops sell it as a powder for injection alongside their peptides. Because it degrades readily, a certificate that states the amount actually recovered from the vial matters more than the label.

A coenzyme, not a peptide, with a literature that is mostly about its precursors. PubMed indexes 3,005 papers on NAD+ supplementation or infusion, 1,619 of them in rodents, and 69 clinical-trial reports; almost all of those trials gave oral precursors, nicotinamide riboside or nicotinamide mononucleotide, not NAD+ itself. ClinicalTrials.gov lists 264 registered trials on the same terms, again dominated by precursors.

Injected NAD+ has almost no controlled evidence and no licence anywhere. Trials of intravenous or subcutaneous NAD+ are few and small. No regulator has approved NAD+ as a medicine; UK drip clinics supply it as an unlicensed product, and in the United States it exists only as a compounded preparation.

What a certificate can tell you here. NAD+ degrades readily in solution and on storage, so the useful number on a report is the amount actually recovered. The reports we read recovered between 102 mg and 554 mg per vial across four sellers, which is why the figure, not the label, is what to read.

What regulators say about NAD+

In the UK. Not a licensed medicine in the UK; supplied by drip clinics as an unlicensed product and by research-chemical sellers as a powder.

We hold no statement from the FDA, MHRA or EMA specifically about NAD+ on file. Its development and licence sources are listed under the record above.

What the 11 NAD+ certificates show

We have read 11 Janoshik reports covering NAD+, published by 10 UK sellers. Each was opened on Janoshik's own website. All 11 name the seller itself as the client. 7 of the 11 are dated within the last six months and 2 are more than a year old. The newest is dated 15 Sep 2026 and the oldest 15 May 2025.

A certificate is a batch document. The lines that matter are the compound (it must say NAD+, not only a batch code), the client (the shop, not its supplier) and the analysis date. A new batch is untested until a new report appears.

NAD+ in the UK at a glance

Counted from the vendor ledger at build time. The A-Z directory lists every seller and what each publishes instead.

Questions people ask

The Peptide Watch's position on NAD+

Not a licensed medicine in the UK; supplied by drip clinics as an unlicensed product and by research-chemical sellers as a powder. The Peptide Watch reads the certificates UK sellers publish and does not recommend anywhere to buy NAD+. Sellers on this page are listed by the date of their newest NAD+ certificate and by nothing else. If you can verify a seller's testing, you can at least judge its evidence; if you cannot, you are taking the seller's word for what is in the vial. See how UK testing compares across every seller in the market statistics.

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