Is Mercia Research legit? An independent review
Mercia Research publishes its own Janoshik certificate of analysis, naming Mercia Research as the client, with its most recent certificate dated Sep 2026. Because Janoshik reports carry a unique code checkable on janoshik.com, the result can be independently verified.
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 | ✅ genuine Janoshik, own name | read on the seller's own site |
| Latest certificate date | Sep 2026 | as printed on the report |
| Domain registered | Apr 2026 · 6 months old | the domain registry's public record |
| This audit as data | /data/vendor/merciaresearch-com.json | same record the open dataset serves, re-checked daily |
The certificate
10 reports we opened on Janoshik's site
Each row was opened by a real page load on verify.janoshik.com and transcribed. The client column is the name the laboratory printed. Newest first. Audit findings, not recommendations.
| Task | Sample | Test | Client on the report | Received | Result | |
|---|---|---|---|---|---|---|
| #231845 | PT-141 30mg Cartridge | purity | Mercia Research Limited | 11 Sep 2026 | PT-141 · 10.50 mg/ml · 99.959% | verify |
| #231839 | KPV 10mg Cartridge | purity | Mercia Research Limited | 11 Sep 2026 | KPV · 3.16 mg/ml · 98.279% | verify |
| #231827 | SS-31 (Elamipretide) 30mg Cartridge | purity | Mercia Research Limited | 11 Sep 2026 | SS-31 · 8.61 mg/ml · 99.747% | verify |
| #231821 | Selank 20mg Cartridge | purity | Mercia Research Limited | 11 Sep 2026 | Selank · 3.59 mg/ml · 99.608% | verify |
| #231816 | Melanotan II 30mg Cartridge | purity | Mercia Research Limited | 11 Sep 2026 | Melanotan II · 6.82 mg/ml · 99.733% | verify |
| #231810 | NAD+ 500mg Cartridge | purity | Mercia Research Limited | 11 Sep 2026 | NAD+ · 345.68 mg/ml | verify |
| #231804 | MOTS-c 30mg Cartridge | purity | Mercia Research Limited | 11 Sep 2026 | MOTS-c · 6.86 mg/ml · 98.770% | verify |
| #231798 | Tesamorelin 20mg Cartridge | purity | Mercia Research Limited | 11 Sep 2026 | Tesamorelin · 7.05 mg/ml · 96.470% | verify |
| #231792 | Ipamorelin + CJC no DAC 10mg Cartridge | purity | Mercia Research Limited | 11 Sep 2026 | Ipamorelin · 1.50 mg/ml CJC-1295 (mod GRF 1-29) · 1.56 mg/ml | verify |
| #231786 | GHK-Cu 100mg Cartridge | purity | Mercia Research Limited | 11 Sep 2026 | GHK-Cu · 31.38 mg/ml (26.34 mg/ml GHK, 5.04 mg/ml copper) · 99.708% | verify |
Show buyers you are independently verified
Mercia Research is one of only 41 UK vendors whose testing The Peptide Watch could independently verify. If that is you, display this badge: it links back to this audit. No fee and no catch, verified vendors are welcome to use it. It keeps itself up to date: it shows as verified only while this listing is verified.
<a href="https://thepeptidewatch.com/vendor/merciaresearch-com" target="_blank" rel="noopener"><img src="https://thepeptidewatch.com/badge/merciaresearch-com.svg" alt="Verified by The Peptide Watch" width="272" height="48" style="border:0"></a>
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Is Mercia Research legit? The questions people ask
Is Mercia Research legit?
On The Peptide Watch's independent audit, Mercia Research (merciaresearch.com) publishes its own verifiable Janoshik certificate of analysis that names Mercia Research itself as the client, so its testing can be checked on Janoshik's own website. That is the strongest evidence standard we track. It confirms the credibility of the seller's evidence, not any individual vial you receive.
Can I trust Mercia Research, and is it a good supplier?
Its lab evidence is independently verifiable, which is the best signal a paper trail can give. Even a genuine certificate proves a sample was tested once, not that your specific batch matches it, so weigh it alongside consistent results over time.
Is Mercia Research a scam?
Nothing in this audit indicates that. Mercia Research shows a verifiable own-name Janoshik certificate, the opposite of the borrowed or self-made certificates the watch list flags. Judge it on that checkable evidence rather than the word 'scam'.
Does Mercia Research publish a real Certificate of Analysis?
Yes. Its most recent own-name Janoshik certificate is dated Sep 2026 and can be verified on Janoshik's website by its unique code, so the purity result cannot be faked or edited.
Related vendors
The Peptide Watch. "Is Mercia Research legit? Independent review & COA audit." Verified 5 October 2026. https://thepeptidewatch.com/vendor/merciaresearch-com