Is CRC Research legit? An independent review
CRC Research checked 5 October 2026. The domain was registered on 24 August 2026 through Key-Systems; the site is a Next.js app. Its COA library lists nine records: cagrilintide CRC-7002 (tested 1 September 2026, 99.86%), retatrutide CRC-4007 (20 August, 100.00%), CRC-4008, CRC-4009 and CRC-4010 (1 September, 99.89%, 99.97% and 99.54%), tirzepatide CRC-4003 and CRC-4006 (15 September) and two more, each described as 'CRC certificate issued by CRC Research, original laboratory file also available'. Both buttons serve PDF files from the site's own document API, about 2 KB for the CRC certificate and about 317 KB, two pages, for the original. We do not open PDFs from shops, so whose name is on the originals is unread. The HTML pages name no laboratory. The site names CRC Research Ltd with no company number, and a Companies House search found no company of that name. Payment words on the pages: Stripe and PayPal. Products include HGH, retatrutide, tirzepatide, MOTS-c, PT-141 and ipamorelin.
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 | Aug 2026 · 2 months old | the domain registry's public record |
| This audit as data | /data/vendor/crcresearch-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 CRC Research legit? The questions people ask
Is CRC Research legit?
CRC Research (crcresearch.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 CRC Research, 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 CRC Research publishes an own-name certificate you can check on an independent lab's website, you are taking its quality on trust.
Is CRC Research a scam?
The Peptide Watch does not assert that. What is observable is the reason it sits on the watch list: publishes a coa library, not yet independently verified. Being unverifiable is a reason for caution, not proof of fraud.
Does CRC Research publish a real, verifiable Certificate of Analysis?
Not one that can be independently verified in its own name. 🟨 A certificate library, but the laboratory is not named anywhere we could read. CRC Research (crcresearch.co.uk) lists nine batches with test dates and purity figures (one at 100.00%) and offers two PDFs for each: a 'CRC certificate issued by CRC Research' and an 'original laboratory file'.
Which UK peptide sellers do publish a verifiable certificate of analysis?
Of the 474 active UK sellers The Peptide Watch audits, 41 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, Mercia Research, Peptide Central UK and 36 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 CRC Research legit? Independent review & COA audit." Verified 5 October 2026. https://thepeptidewatch.com/vendor/crcresearch-co-uk