Coastal Peptides
B2CIndependent reviews for the research-peptide shop coastalpeptides.com show 24 lab tests and 64 stocked peptide SKUs.
Profile aggregated from Peptigrity — attributed.
AGreat
peptideone Score · 9.2/10
Composite of 1 independent source
Purity 9.2/10
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 (21)
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 |
|---|---|---|---|
| Semaglutide | 98.04% | Chromate | 2026-02-17 |
| Semaglutide | 99.84% | Chromate | 2026-02-17 |
| Retatrutide | 99.94% | Chromate | 2026-02-16 |
| Tirzepatide | — | Chromate | 2026-01-13 |
| Tirzepatide | 99.72% | Chromate | 2026-01-13 |
| Tirzepatide | 99.34% | Chromate | 2026-01-13 |
| BPC-157 | 98.83% |
Other independent ratings
Vendor-level scores from other independent aggregators, shown for cross-reference. Attributed — each source's score, not ours.