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95
/ 100
Strong
Peptology Labs
UKPeptology Labs is a UK research-peptide vendor that publishes batch-specific Janoshik test reports for its products.
Coverage
100%
Verified 10/10 of 10 criteria · checked 2026-07-27
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Peptology Labs (PEPTOLOGY LABS LTD, UK) hosts authentic Janoshik TEST REPORT PDFs on its own site, each tied to a named batch and client and carrying a QR code plus a unique key for verification at janoshik.com/verify. Reports cover HPLC purity, MS/quantity identity, endotoxin, and heavy-metals screening, and the most recent visible certificates are dated July 2026. The site does not publish a formal recall or complaints policy and the CoAs show no ISO 17025 accreditation number, but no fraud or regulatory red flags were found.
Criterion-by-criterion evidence
Every score below is a recorded, dated observation. Where we could not verify a claim, the criterion is marked Unverified and excluded from the score (but it still counts against coverage).
| Criterion | Wt | Finding | Evidence |
|---|---|---|---|
| Publishes CoAsThe vendor publishes at least one certificate of analysis (CoA) on its own website. | 3 | ✔ Yes | Dedicated CoA page links 25+ product test-report PDFs hosted on the site's Shopify CDN (e.g. RETA_10_BATCH_115_FULL_TEST.pdf), each an authentic Janoshik TEST REPORT. Source · 2026-07-27 |
| Batch-level CoAsCoAs are tied to a specific batch/lot number, not a single generic certificate per product. | 3 | ✔ Yes | Reports carry a specific Batch field (e.g. Batch 115-RETA10) and Task Numbers; site states 'no reused Certificates of Analysis' and documentation issued against the batch supplied. Source · 2026-07-27 |
| Third-party lab namedThe name of the laboratory that ran the analysis appears on the CoA. | 2 | ✔ Yes | Reports are branded Janoshik ([email protected]), listing Client 'PEPTOLOGY LABS LTD'; lab is named on every CoA. Source · 2026-07-27 |
| Independent / accredited labThe lab is independent of the vendor and/or accredited (ISO 17025), or is a recognised independent peptide lab (e.g. Janoshik, MZ Biolabs). | 2 | ✔ Yes | Janoshik Analytical (Czech Republic) is a widely recognised independent third-party peptide testing lab; no ISO 17025 accreditation number shown on the CoA. Source · 2026-07-27 |
| CoA verifiable at sourceThe CoA can be authenticated on the laboratory's own website (e.g. a verification code) — actually tested, not just claimed. | 2 | ✔ Yes | Each report states 'Verify this test at www.janoshik.com/verify with the following unique key' plus a QR code (e.g. key Y9CH5LTVMHCN); mechanism genuinely exists though a live lookup was blocked by Cloudflare (HTTP 403) from this environment. Source · 2026-07-27 |
| Identity + purity methodsWhich analytical methods are identifiable on the published CoAs. | 2 | ? Unverified HPLC + MS | CoA reports purity % and quantity (Janoshik HPLC purity + MS identity for GLP-1 blind test); site states 'HPLC analysis is used to assess purity' and 'LC-MS analysis is used to support confirmation of molecular identity'. Source · 2026-07-27 |
| Freshness of the latest CoADate of the most recent CoA visible on the site. | 2 | ? Unverified < 3 months | Retatrutide batch 115 reports dated 07-10 JUL 2026 (sample received 02 JUL '26), roughly 3 weeks before the 2026-07-27 review date. Source · 2026-07-27 |
| CoAs accessible before purchase, no accountCoAs can be viewed without a customer account or a prior purchase. | 2 | ✔ Yes | CoA PDFs are directly downloadable from the public Shopify CDN with no account, login, or prior purchase required. Source · 2026-07-27 |
| Sterility / endotoxin data publishedSterility or endotoxin (LAL) results are published in addition to purity. | 1 | ✔ Yes | Endotoxin Analysis included (e.g. 1.531 EU/Vial for batch 115-RETA10) alongside purity and heavy-metals (As/Cd/Pb/Hg not detected); no bacterial sterility culture data. Source · 2026-07-27 |
| Public complaints / recall handlingA public recall/complaint policy, or documented handling of a disputed batch. | 1 | ✘ No | No public recall or formal complaints/returns-of-disputed-batch policy found on the site. No red flags identified: no FDA warning letters or documented CoA fraud; UK Companies House lists PEPTOLOGY LABS LTD (17117319) and third-party directory thepeptidewatch.com ranks it favourably with verifiable Janoshik CoAs. Source · 2026-07-27 |
Full scoring rubric on the methodology page. How affiliation is handled: read the disclosure.
Frequently Asked Questions
Is Peptology Labs legit?
On PeptideTrust's 10-criterion transparency scorecard, Peptology Labs scores 95/100 with 100% evidence coverage. That measures how openly it documents third-party testing, not the quality or safety of any product.
Does Peptology Labs publish third-party CoAs?
Yes. Peptology Labs publishes third-party Certificates of Analysis from Janoshik, an independent Czech peptide-testing lab, with each report tied to a specific batch and carrying a unique key and QR code that can be checked at Janoshik's own verification page; the PDFs are freely viewable without an account or purchase.
How is the Peptology Labs transparency score calculated?
We score 10 weighted, evidence-backed criteria. Score = 100 × Σ(weight × points) ÷ Σ(weight of verified criteria); coverage = verified weight ÷ total weight. Affiliated and non-affiliated vendors use the exact same rubric.