Penguin Peptides
B2CNo concrete first-party verification or transparency practice (e.g., public COAs, batch-report links, third-party test publications) is described in the profile text.
Profile aggregated from Peptigrity — attributed.
Weighted blend of independent signals — Finnrick safety grade, VialAudit blind-buy audit, and Peptigrity HPLC purity. PeptideBenchmark and the Peptigrity trust score are excluded to avoid double-counting. Attributed to its sources — not our verdict.
Independent test grades (0)
Per Finnrick (independent testing). Attributed — Finnrick's grades, not ours.
| Peptide | Grade | Score |
|---|
Independent HPLC tests (3)
Real third-party HPLC results for this vendor, aggregated from Peptigrity and attributed to the lab that ran each test.
| Peptide | HPLC purity | Lab | Date |
|---|---|---|---|
| Retatrutide | 99.76% | Unknown (via Peptigrity) | 2026-01-20 |
| Retatrutide | 99.74% | Unknown (via Peptigrity) | 2026-01-20 |
| Retatrutide | 99.58% | Unknown (via Peptigrity) | 2026-01-20 |
Other independent ratings
Vendor-level scores from other independent aggregators, shown for cross-reference. Attributed — each source's score, not ours.