Crestpeptide: Lab Test Results
Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by Crestpeptide.
19
CoAs on file
99.58%
Avg reported purity
5
Compounds tested
Sep 21, 2026
Latest test
Results by compound
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Retatrutide | 5 | 99.93% | Sep 16, 2026 |
| Tirzepatide | 4 | 99.46% | Sep 4, 2026 |
| Tesamorelin | 4 | 99.5% | Sep 21, 2026 |
| BPC-157 | 3 | 99.17% | Aug 9, 2026 |
| GHK-Cu | 3 | 99.77% | Aug 20, 2026 |
Recent CoAs
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| Tesamorelin | mbxm3205 | n/a | Lab K | Sep 21, 2026 | verify |
| Retatrutide | MBWU4526 | n/a | Lab K | Sep 16, 2026 | verify |
| Tirzepatide | n/a | 98.1% | Lab E | Sep 4, 2026 | verify |
| GHK-Cu | n/a | 99.6% | Lab G | Aug 20, 2026 | verify |
| BPC-157 | n/a | 99.6% | Lab G | Aug 9, 2026 | verify |
| BPC-157 | Mar.2.2026 | 98.4% | Lab E | May 28, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | May 28, 2026 | verify |
| Tesamorelin | n/a | 99.5% | Lab E | Apr 28, 2026 | verify |
| Tesamorelin | n/a | 99.8% | Lab E | Mar 6, 2026 | verify |
| GHK-Cu | n/a | 99.9% | Lab E | Mar 6, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Mar 6, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab G | Mar 4, 2026 | verify |
| Tesamorelin | n/a | 99.21% | Lab E | Feb 19, 2026 | verify |
| BPC-157 | 258005 | 99.5% | Lab G | Feb 10, 2026 | verify |
| GHK-Cu | n/a | 99.8% | Lab G | Feb 10, 2026 | verify |
| Retatrutide | n/a | 99.95% | Lab E | Dec 29, 2025 | verify |
| Tirzepatide | T0125874368-71 | 99.95% | Lab E | Dec 29, 2025 | verify |
| Retatrutide | n/a | 99.95% | Lab E | Dec 6, 2025 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Oct 17, 2025 | verify |
Showing 19 most recent of 19. Search the full database on the CoA page.
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Data comes from publicly posted third-party lab certificates (Janoshik, MZ Biolabs, and others) and community submissions. Purity figures are as reported by the testing lab for the specific batch tested; they are not a guarantee of any other batch. For research and informational purposes only.