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◇ The Peptide Watch, independent vendor audit

Is Peptology Labs legit? An independent review

peptologylabs.uk · audited 10 October 2026
Peptology Labs is independently tested: its certificate is genuinely its own and verifiable, one of only 41 of 500 UK vendors that pass.

Peptology Labs commissions its own Janoshik testing, in the names Peptology Labs and Peptology Labs Ltd. Its newest report was analysed 21 September 2026; every report we have read is listed below.

Full A-Z directory

Verified facts at a glance

FactWhat we foundHow it was checked
Certificategenuine Janoshik, own nameread on the seller's own site
Latest certificate dateSep 2026as printed on the report
Domain registeredMar 2026 · 7 months oldthe domain registry's public record
Trustpilot4.8 from 82 reviewsmeasures delivery and service, not what is in the vial

The certificate

Its certificate is its own. Peptology Labs commissions its own Janoshik testing, in the names Peptology Labs and Peptology Labs Ltd. Its newest batch of reports, 21 in all, reached the laboratory on 16 September 2026 and was analysed on 18 and 21 September 2026 (for example task #233900, PT-141 at 99.966%), covering epithalon, sermorelin, thymosin alpha-1, VIP, PT-141, DSIP and kisspeptin-10. An earlier batch of 33, analysed in September 2026 (task #229683 on 9 September 2026), covers BPC-157, TB-500, GHK-Cu, NAD+, cagrilintide, CJC-1295 with ipamorelin, melanotan 1 and 2, selank and SS-31. Each product carries a purity assay, an endotoxin test and a heavy-metal screen for the same batch, and every one verifies on Janoshik's website.
Verify this certificate on Janoshik’s own site →
Opens the report on janoshik.com. Confirm the Client field names Peptology Labs and the purity matches. This is exactly the check we ran.
Certificate displayed by Peptology Labs
What this certificate actually is: Its own Janoshik certificate, it names the seller as the client and can be verified on Janoshik's website., client field: Peptology Labs Ltd
Every report we have read: 72 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.

TaskSampleTestClient on the reportReceivedResult
#233914Epithalonheavy metalsPeptology Labs16 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#233913EpithalonendotoxinPeptology Labs16 Sep 2026Endotoxin · 3.783 EU/vialverify
#233912EpithalonpurityPeptology Labs16 Sep 2026Epithalon · 10.51 mg · 98.953%verify
#233911Sermorelinheavy metalsPeptology Labs16 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#233910SermorelinendotoxinPeptology Labs16 Sep 2026Endotoxin · <1 EU/vialverify
#233909SermorelinpurityPeptology Labs16 Sep 2026Sermorelin · 5.20 mg · 99.421%verify
#233908Thymosin Alpha-1heavy metalsPeptology Labs16 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#233907Thymosin Alpha-1endotoxinPeptology Labs16 Sep 2026Endotoxin · 2.164 EU/vialverify
#233906Thymosin Alpha-1purityPeptology Labs16 Sep 2026Thymosin Alpha-1 · 5.36 mg · 99.885%verify
#233905VIPheavy metalsPeptology Labs16 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#233904VIPendotoxinPeptology Labs16 Sep 2026Endotoxin · <1 EU/vialverify
#233903VIPpurityPeptology Labs16 Sep 2026VIP · 11.12 mg · 99.336%verify
#233902PT-141heavy metalsPeptology Labs16 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#233901PT-141endotoxinPeptology Labs16 Sep 2026Endotoxin · 2.328 EU/vialverify
#233900PT-141purityPeptology Labs16 Sep 2026PT-141 · 11.58 mg · 99.966%verify
#233899DSIPheavy metalsPeptology Labs16 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#233898DSIPendotoxinPeptology Labs16 Sep 2026Endotoxin · 1.117 EU/vialverify
#233897DSIPpurityPeptology Labs16 Sep 2026DSIP · 6.67 mg · 98.994%verify
#233896Kisspeptin-10heavy metalsPeptology Labs16 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#233895Kisspeptin-10endotoxinPeptology Labs16 Sep 2026Endotoxin · <1 EU/vialverify
#233894Kisspeptin-10purityPeptology Labs16 Sep 2026Kisspeptin-10 · 9.94 mg · 99.430%verify
#230188TesamorelinpurityPeptology Labs8 Sep 2026Tesamorelin · 10.89 mg · 98.429%verify
#230114Tesamorelinheavy metalsPEPTOLOGY LABS LTD7 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#230113TesamorelinendotoxinPEPTOLOGY LABS LTD7 Sep 2026Endotoxin · <1 EU/vialverify
#229683BAC water (Benzyl Alcohol)heavy metalsPEPTOLOGY LABS LTD4 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#229681BAC water (Benzyl Alcohol)endotoxinPEPTOLOGY LABS LTD4 Sep 2026Endotoxin · 7.436 EU/mlverify
#229680BAC water (Benzyl Alcohol)purityPEPTOLOGY LABS LTD4 Sep 2026Benzyl Alcohol · 8.81 mg/mlverify
#229675SS-31heavy metalsPEPTOLOGY LABS LTD4 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#229674SS-31endotoxinPEPTOLOGY LABS LTD4 Sep 2026Endotoxin · 2.378 EU/vialverify
#229673SS-31purityPEPTOLOGY LABS LTD4 Sep 2026SS-31 · 9.76 mg · 99.832%verify
#229672Selankheavy metalsPEPTOLOGY LABS LTD4 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#229671SelankendotoxinPEPTOLOGY LABS LTD4 Sep 2026Endotoxin · 4.838 EU/vialverify
#229670SelankpurityPEPTOLOGY LABS LTD4 Sep 2026Selank · 11.62 mg · 99.953%verify
#229669Melanotan 2heavy metalsPEPTOLOGY LABS LTD4 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#229668Melanotan 2endotoxinPEPTOLOGY LABS LTD4 Sep 2026Endotoxin · 2.703 EU/vialverify
#229667Melanotan 2purityPEPTOLOGY LABS LTD4 Sep 2026Melanotan 2 · 10.38 mg · 99.925%verify
#229666Melanotan 1heavy metalsPEPTOLOGY LABS LTD4 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#229665Melanotan 1endotoxinPEPTOLOGY LABS LTD4 Sep 2026Endotoxin · 4.988 EU/vialverify
#229664Melanotan 1purityPEPTOLOGY LABS LTD4 Sep 2026Melanotan 1 · 9.36 mg · 99.428%verify
#229660GLOWheavy metalsPEPTOLOGY LABS LTD4 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#229659GLOWendotoxinPEPTOLOGY LABS LTD4 Sep 2026Endotoxin · 2.136 EU/vialverify
#229658GLOWpurityPEPTOLOGY LABS LTD4 Sep 2026GHK-Cu · 59.2 mg (GHK 52.44 mg, copper 6.76 mg)
BPC-157 · 13.00 mg
TB-500 · 11.19 mg		verify
#229657CJC-1295 + IPAheavy metalsPEPTOLOGY LABS LTD4 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#229656CJC-1295 + IPAendotoxinPEPTOLOGY LABS LTD4 Sep 2026Endotoxin · <1 EU/vialverify
#229655CJC-1295 + IPApurityPEPTOLOGY LABS LTD4 Sep 2026Ipamorelin · 5.51 mg
CJC-1295 (mod GRF 1-29) · 4.72 mg		verify
#229654Cagrilintideheavy metalsPEPTOLOGY LABS LTD4 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#229653CagrilintideendotoxinPEPTOLOGY LABS LTD4 Sep 2026Endotoxin · 3.212 EU/vialverify
#229652CagrilintidepurityPEPTOLOGY LABS LTD4 Sep 2026Cagrilintide · 9.53 mg · 99.906%verify
#229650BPC-157 + TB-500heavy metalsPEPTOLOGY LABS LTD4 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#229649BPC-157 + TB-500endotoxinPEPTOLOGY LABS LTD4 Sep 2026Endotoxin · 2.410 EU/vialverify
#229648BPC-157 + TB-500purityPEPTOLOGY LABS LTD4 Sep 2026BPC-157 · 5.82 mg
TB-500 · 5.53 mg		verify
#229641NAD+heavy metalsPEPTOLOGY LABS LTD4 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#229640NAD+endotoxinPEPTOLOGY LABS LTD4 Sep 2026Endotoxin · 1.528 EU/vialverify
#229639NAD+purityPEPTOLOGY LABS LTD4 Sep 2026NAD+ · 467.99 mgverify
#227901GHK-Cuheavy metalsPEPTOLOGY LABS LTD4 Sep 2026As · not detected
Cd · not detected
Pb · not detected		verify
#227899GHK-CuendotoxinPEPTOLOGY LABS LTD4 Sep 2026Endotoxin · 1.304 EU/vialverify
#227898GHK-CupurityPEPTOLOGY LABS LTD4 Sep 2026GHK-Cu · 107.06 mg (GHK 89.51 mg, copper 17.55 mg) · 99.692%verify
#227061GHK-Cuheavy metalsPEPTOLOGY LABS LTD31 Aug 2026As · not detected
Cd · not detected
Pb · not detected		verify
#227060GHK-CuendotoxinPEPTOLOGY LABS LTD31 Aug 2026Endotoxin · 2.213 EU/vialverify
#227059GHK-CupurityPEPTOLOGY LABS LTD31 Aug 2026GHK-Cu · 52.34 mg (GHK 44.37 mg, copper 7.97 mg) · 99.417%verify
#2249295-Amino-1-methylquinoliniumendotoxinPeptology Labs Ltd20 Aug 2026Endotoxin · <1 EU/vialverify
#2249305-Amino-1-methylquinoliniumheavy metalsPEPTOLOGY LABS LTD19 Aug 2026As · not detected
Cd · not detected
Pb · not detected		verify
#2213155-Amino-1-methylquinoliniumpurityPEPTOLOGY LABS LTD14 Aug 20265-Amino-1-methylquinolinium · 5.43 mgverify
#221292AHK-Cu 100mgheavy metalsPEPTOLOGY LABS LTD14 Aug 2026As · not detected
Cd · not detected
Pb · not detected		verify
#221291AHK-Cu 100mgendotoxinPEPTOLOGY LABS LTD14 Aug 2026Endotoxin · 2.173 EU/vialverify
#221290AHK-Cu 100mgpurityPEPTOLOGY LABS LTD14 Aug 2026AHK-Cu · 91.98 mg (AHK 77.79 mg, copper 14.19 mg) · 99.201%verify
#217691Glutathione 1500mgheavy metalsPeptology Labs Ltd7 Aug 2026As · not detected
Cd · not detected
Pb · not detected		verify
#217690Glutathione 1500mgendotoxinPeptology Labs Ltd7 Aug 2026Endotoxin · <1 EU/vialverify
#217689Glutathione 1500mgpurityPeptology Labs Ltd7 Aug 2026Glutathione · 1501.98 mg · 99.167%verify
#194961AOD-9604 5mgheavy metalsPEPTOLOGY LABS LTD18 Jun 2026As · not detected
Cd · not detected
Pb · not detected		verify
#194960AOD-9604 5mgendotoxinPEPTOLOGY LABS LTD18 Jun 2026Endotoxin · 1.007 EU/vialverify
#194959AOD-9604 5mgpurityPEPTOLOGY LABS LTD18 Jun 2026AOD-9604 (CHNS) · 4.90 mg · 99.292% (HPLC)verify

Show buyers you are independently verified

Peptology Labs 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.

Verified by The Peptide Watch
Copy this to your site:
<a href="https://thepeptidewatch.com/vendor/peptologylabs-uk" target="_blank" rel="noopener"><img src="https://thepeptidewatch.com/badge/peptologylabs-uk.svg" alt="Verified by The Peptide Watch" width="272" height="48" style="border:0"></a>

Peptology Labs reviews: what others report

Third-party signals we found, reviews, independent tests and platform actions, each attributed to its source and labelled by how well it is corroborated. This is not our own verification; items marked "single / unverified report" are unconfirmed and should be treated with caution.

single / unverified report
A named reviewer says they were recommended Peptology Labs on Reddit and had a positive experience; indicates some Reddit word-of-mouth but is a single self-reported review, not a verifiable Reddit thread.
“I was recommended Peptology Labs on Reddit which in itself is a risk. That risk paid off!”
Source: Trustpilot (individual reviewer 'Mike')
single / unverified report
A reviewer reports ordering tirzepatide (tirz-30), waiting weeks before reviewing, and finding it effective; anecdotal efficacy report, not an independent lab test.
“can definitely confirm that this is the real deal. Works as it should”
Source: Trustpilot (individual reviewer 'JE')

Is Peptology Labs legit? The questions people ask

Is Peptology Labs legit?

On The Peptide Watch's independent audit, Peptology Labs (peptologylabs.uk) publishes its own verifiable Janoshik certificate of analysis that names Peptology Labs 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.

Does Peptology Labs 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.

How do I check Peptology Labs's certificate myself?

Find the certificate on peptologylabs.uk and read four things: an independent laboratory is named; the client field names Peptology Labs, 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.

Related vendors

Other independently-tested vendors: Is Lab77Peptides legit? · Is Biovanta legit? · Is Mercia Research legit?
The bottom line. Peptology Labs earns a place on the independently-tested list because it pays an independent lab (Janoshik) to test its own stock in its own name, and lets you verify it. That is the standard.

How every seller is judged: methodology. This audit as data: /data/vendor/peptologylabs-uk.json, re-checked daily. All 41 sellers whose certificate can be checked: the verified list.

Is anything on this page wrong or out of date? Submit a correction request and we'll look into it, vendors welcome too.