penguinpeptides.com
B2CCommunity review page for penguinpeptides.com, reporting 48 lab tests and HPLC purity averaging 99.20% for peptide products.
Profile aggregated from Peptigrity — attributed.
AGreat
peptideone Score · 9.3/10
Composite of 1 independent source
Purity 9.3/10
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 (40)
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 |
|---|---|---|---|
| Tesamorelin | 99.49% | Janoshik Labs | — |
| Selank | 99.62% | Janoshik Labs | — |
| Retatrutide | 99.87% | Janoshik Labs | — |
| Sermorelin | 94.50% | Janoshik Labs | 2026-03-10 |
| Semaglutide | 99.64% | Janoshik Labs | 2026-01-25 |
| Ipamorelin | 99.85% | Janoshik | 2026-01-21 |
| Tesamorelin | 99.13% |
Other independent ratings
Vendor-level scores from other independent aggregators, shown for cross-reference. Attributed — each source's score, not ours.