Is Fat Pig Peptides legit? An independent review
Fat Pig Peptides checked 5 October 2026: fatpigpeptides.co.uk is a live UK storefront (GBP pricing, 'Next-Day Delivery', trading address 167-169 Great Portland Street, 5th Floor, London W1W 5PF) selling research peptides including BPC-157, HGH fragment, GHK-Cu, tesamorelin and SS-31. Its homepage markets what it calls 'The Fat Pig Standard', described as HPLC, LC-MS, LAL endotoxin and ICP-MS testing, and a /certificates-of-analysis/ page shows a grid of certificate photographs (filenames such as coabpc1.jpg, coahgh1.jpg, MAS-GHK.jpg), but none names a laboratory, prints a client, or links a verify.janoshik.com (or equivalent) page; the page content read carries no lab name at all. Companies House lists POWER GAINZ NUTRITION LTD, company 16686255, incorporated 1 September 2025, active, registered at the same Great Portland Street address, a direct match; Sebastian Paul Grayson is director and person of significant control. The domain was registered 1 July 2026. What would move this listing: a laboratory named on the certificate images, or a Janoshik (or other named lab) verify link, own-name, checkable on the lab's own site.
Which UK sellers do pass this check?
Verified facts at a glance
| Fact | What we found | How it was checked |
|---|---|---|
| Standard applied | own-name verifiable-COA standard | how every vendor is judged, methodology |
| Certificate | nothing we could verify in this seller's own name, details below | read on the seller's own site |
| Domain registered | Jul 2026 · 3 months old | the domain registry's public record |
| This audit as data | /data/vendor/fatpigpeptides-co-uk.json | same record the open dataset serves, re-checked daily |
- A certificate that verifies in this seller's own name on an independent laboratory's website
- Any certificate from a named independent laboratory on the pages we audited
Is Fat Pig Peptides legit? The questions people ask
Is Fat Pig Peptides legit?
Fat Pig Peptides (fatpigpeptides.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.
Can I trust Fat Pig Peptides, and is it a good supplier?
You cannot independently verify its testing today. A good delivery reputation is not the same as a verifiable certificate; the two are unrelated. Until Fat Pig Peptides publishes an own-name certificate you can check on an independent lab's website, you are taking its quality on trust.
Is Fat Pig Peptides a scam?
The Peptide Watch does not assert that. What is observable is the reason it sits on the watch list: claims testing but names no lab, no checkable link. Being unverifiable is a reason for caution, not proof of fraud.
Does Fat Pig Peptides publish a real, verifiable Certificate of Analysis?
Not one that can be independently verified in its own name. ⚠ 'The Fat Pig Standard' testing claimed, no report you can open.
Which UK peptide sellers do publish a verifiable certificate of analysis?
Of the 455 active UK sellers The Peptide Watch audits, 38 publish a certificate of analysis you can verify in their own name on the independent laboratory's own website. Ranked by most recent certificate, they are Lab77Peptides, Peptology Labs, Biovanta, Camo Chem, Biohackpeptides and 33 others. This is a record of who publishes verifiable paperwork, not a recommendation.
Related vendors
Compare with independently-tested vendors: Is Lab77Peptides legit? · Is Peptology Labs legit? · Is Biovanta legit?
The Peptide Watch. "Is Fat Pig Peptides legit? Independent review & COA audit." Verified 5 October 2026. https://thepeptidewatch.com/vendor/fatpigpeptides-co-uk