Pepspan
UKPepspan is a UK-registered (Companies House 17144153) research-peptide supplier that advertises Janoshik third-party batch testing but has no live Certificates of Analysis published yet.
Verified 8/10 of 10 criteria · checked 2026-07-27
Pepspan's site is reachable and prominently markets independent batch testing by Janoshik Analytical (Prague) using HPLC, mass spectrometry and amino-acid sequencing, with per-vial QR codes claimed to link to batch-specific reports. As of 2026-07-27, however, the purity-reports page contains no actual CoAs; every product is listed as 'Current Batch: Pending first shipment', so purity claims, batch traceability, methods and verifiability cannot yet be independently confirmed. The vendor publishes a 14-day refund and damaged-shipment policy but no recall procedure, and no sterility/endotoxin data.
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 | ✘ No | Purity-reports page is live but contains no actual CoAs; every product shows 'Current Batch: Pending first shipment' with reports 'available upon first batch analysis'. No downloadable certificate is currently present. Source · 2026-07-27 |
| Batch-level CoAsCoAs are tied to a specific batch/lot number, not a single generic certificate per product. | 3 | ? Unverified | Site claims reports are 'batch-specific — not generic', with a per-vial QR code linking to its batch report, but no actual batch CoA exists yet to confirm the claim. Source · 2026-07-27 |
| Third-party lab namedThe name of the laboratory that ran the analysis appears on the CoA. | 2 | ◐ Partial | Janoshik Analytical (Prague) is named as the sole third-party lab across the site, but no CoA is available to confirm the lab is actually named on an issued certificate. 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 is a widely recognised independent peptide-testing lab; however, no issued Pepspan CoA yet demonstrates the relationship is operational. 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 | ◐ Partial | A QR-code/Janoshik verification path is claimed (Janoshik does operate verify.janoshik.com), but with no live CoA or report code, no lookup could be completed. Source · 2026-07-27 |
| Identity + purity methodsWhich analytical methods are identifiable on the published CoAs. | 2 | ? Unverified | Site claims HPLC purity, mass spectrometry confirmation and amino-acid sequencing, but no actual CoA is viewable to confirm the analytical methods used. Source · 2026-07-27 |
| Freshness of the latest CoADate of the most recent CoA visible on the site. | 2 | ? Unverified No dated CoA | No dated CoA is visible; all reports listed as pending first shipment as of 2026-07-27. Source · 2026-07-27 |
| CoAs accessible before purchase, no accountCoAs can be viewed without a customer account or a prior purchase. | 2 | ✘ No | The purity-reports page is public with no login/purchase gate, but there are currently no CoAs to view, so no pre-purchase document access exists in practice. Source · 2026-07-27 |
| Sterility / endotoxin data publishedSterility or endotoxin (LAL) results are published in addition to purity. | 1 | ✘ No | No sterility or endotoxin (LAL) testing is mentioned; stated scope is purity/identity (HPLC, MS, sequencing) only. Source · 2026-07-27 |
| Public complaints / recall handlingA public recall/complaint policy, or documented handling of a disputed batch. | 1 | ◐ Partial | A 14-day refund/returns policy and a damaged-shipment procedure (photograph, contact within 48h, replacement or refund) exist, but there is no published recall policy or documented handling of a disputed batch. No FDA warning letters or CoA-fraud red flags found. Source · 2026-07-27 |
Full scoring rubric on the methodology page. How affiliation is handled: read the disclosure.