Is Precision Peptide legit? An independent review
Precision Peptide is on the watch list: its certificate can't be verified in its own name, one of 483 of 524 UK sellers that fail this check.
- Certificate
- self-made, no outside laboratory
- Official website
- precisionpeptide.co.uk
- Payment
- Crypto & Bank
- Buyer reports
- Coming soon, visible from 1 November 2026 · tell us about your order
Checked daily against the seller's site, the laboratory's site and the public record. If this seller publishes new evidence, tell us and it is re-checked. Method · data · correction
What we found
Precision Peptide checked 10 September 2026. The site sells research peptides in GBP and names no company or address anywhere, including its terms. Its certificates of analysis are Precision Peptides' own branded documents. Each cites 'Freedom Diagnostics Testing (USA)', a real US laboratory, but states the results were 'provided by the manufacturer' and 'verified per manufacturer report', and gives no accession or client code, so nothing can be checked with the lab. The BPC-157 certificate (lot PG-2509-067, dated 23 February 2026) and the Wolverine blend certificate (lot 672954BT22, dated 9 April 2026) both report BPC-157 at exactly 99.486%. Payment is by cryptocurrency (Bitcoin, Ethereum, USDT) or UK bank transfer. Bank-transfer buyers are told to email their payment reference to an address at precisionpeptides.co.uk, a different domain (with an 's') whose website returns an error and which publishes no mail-server record, so a reference sent there may not arrive; the contact page uses [email protected] instead. It is not the same site as precision-peptides.shop.
New As of 13 October 2026 you can leave feedback on your order. Reports are being collected now and will be shown on this page from 1 November 2026, so every seller has the same time to gather them. Written notes appear only after we have read them.
Tap one to start, about 30 seconds.
The certificate, and what's wrong with it
Questions people ask about Precision Peptide
Is Precision Peptide legit?
Precision Peptide (precisionpeptide.co.uk) is on The Peptide Watch's watch list. It does not publish a certificate of analysis that can be independently verified in its own name, so its quality claims rest on trust rather than checkable evidence. That is not proof of a scam; it means the evidence does not check out.
Does Precision Peptide publish a real, verifiable Certificate of Analysis?
Not one that can be independently verified in its own name. Precision Peptide, trading as Precision Peptides at precisionpeptide.co.uk, shows certificates on its own branded template that cite a US lab, Freedom Diagnostics Testing, but they are not that lab's reports: they say the results were 'provided by the manufacturer', carry no code to check them, and
How do I check Precision Peptide's certificate myself?
Find the certificate on precisionpeptide.co.uk and read four things: an independent laboratory is named; the client field names Precision Peptide, not a supplier; the compound line names the peptide you are buying, not only a batch code; and the report opens on the laboratory's own website from its task number and key (verify.janoshik.com for Janoshik). Then compare the batch number on the report with the one on your vial. The free COA Checker on this site runs the first three checks on a photo of the certificate.