Panda Peptides
USPanda Peptides is a US-zone peptide vendor that publishes batch-specific Janoshik Analytical certificates of analysis on its own website.
Verified 10/10 of 10 criteria · checked 2026-07-27
Panda Peptides maintains a dedicated CoA hub with lot-specific certificates from the independent lab Janoshik Analytical, reporting HPLC purity and mass-spectrometry identity, plus endotoxin and some heavy-metals data. Each report carries a numeric Janoshik verification code linking to verify.janoshik.com, and CoAs are viewable without a purchase or account behind only a self-attestation gate. Visible reports are dated February-May 2026; the vendor offers a 30-day quality guarantee for CoA mismatches but no formal recall policy, and no FDA warning letters or CoA-fraud 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/ hub hosts batch-specific certificates of analysis on the vendor's own domain, plus reports on individual product pages. Source · 2026-07-27 |
| Batch-level CoAsCoAs are tied to a specific batch/lot number, not a single generic certificate per product. | 3 | ✔ Yes | CoAs are tied to specific PP-designated lot numbers (e.g. PP2602-012AA, PP2602-034), not one generic cert per product. Source · 2026-07-27 |
| Third-party lab namedThe name of the laboratory that ran the analysis appears on the CoA. | 2 | ✔ Yes | Testing lab named on CoAs and site as Janoshik Analytical; reports published Feb-May 2026 at Janoshik. 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 recognised independent peptide-testing lab; site states it is not owned by or compensated based on results. ISO 17025 accreditation not independently confirmed here. 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 | CoA page provides per-report numeric Janoshik codes (e.g. 168135, 152450, 194189) with 'Verify' links to verify.janoshik.com, a genuine lab-side verification system. Could not complete a lookup myself (verify.janoshik.com returned HTTP 403 to automated fetch). Source · 2026-07-27 |
| Identity + purity methodsWhich analytical methods are identifiable on the published CoAs. | 2 | ? Unverified HPLC + MS | CoAs identify HPLC for purity and mass spectrometry for identity confirmation. Source · 2026-07-27 |
| Freshness of the latest CoADate of the most recent CoA visible on the site. | 2 | ? Unverified < 3 months | Page states batch testing published February-May 2026; most recent ~May 2026, under 3 months before 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 | ✔ Yes | CoA directory and Janoshik verify links are viewable without a customer account or prior purchase; only a self-attestation researcher/age gate is present, no login. Source · 2026-07-27 |
| Sterility / endotoxin data publishedSterility or endotoxin (LAL) results are published in addition to purity. | 1 | ✔ Yes | Endotoxin (LAL) results published in EU/Vial (ranging <1 to ~6.708 EU/Vial) alongside purity; some products also show heavy-metals screening (As, Cd, Pb, Hg not detected). Source · 2026-07-27 |
| Public complaints / recall handlingA public recall/complaint policy, or documented handling of a disputed batch. | 1 | ◐ Partial | Quality guarantee covers orders that 'appear not to match posted COA or purity spec' within 30 days via support email, but no formal recall policy. No FDA warning letters or documented CoA fraud found. Source · 2026-07-27 |
Full scoring rubric on the methodology page. How affiliation is handled: read the disclosure.