Peptide-S: Lab Test Results
Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by Peptide-S.
134
CoAs on file
99.34%
Avg reported purity
11
Compounds tested
Aug 9, 2026
Latest test
Results by compound
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Retatrutide | 45 | 99.65% | Aug 9, 2026 |
| Tirzepatide | 42 | 99.74% | Aug 9, 2026 |
| GHK-Cu | 9 | 99.82% | Feb 22, 2026 |
| Tesamorelin | 8 | 95.19% | Aug 3, 2026 |
| Semaglutide | 6 | 99.52% | Jan 15, 2026 |
| BPC-157 | 5 | 99.69% | Sep 18, 2025 |
| Ipamorelin | 4 | 99.73% | Feb 20, 2026 |
| Cagrilintide | 4 | 99.22% | Nov 25, 2025 |
| Survodutide | 4 | 99.76% | Nov 25, 2025 |
| Mazdutide | 4 | 99.46% | Nov 25, 2025 |
| Sermorelin | 3 | 97.61% | Feb 20, 2026 |
Recent CoAs
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| Tirzepatide | n/a | 99.8% | Lab G | Aug 9, 2026 | verify |
| Retatrutide | n/a | 99.6% | Lab G | Aug 9, 2026 | verify |
| Retatrutide | n/a | n/a | Lab G | Aug 9, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Aug 3, 2026 | verify |
| Tesamorelin | n/a | 99.9% | Lab E | Aug 3, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Mar 10, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | Mar 4, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | Mar 2, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | Mar 2, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | Mar 2, 2026 | verify |
| Tirzepatide | Jan.2,2026 | 99.9% | Lab E | Feb 26, 2026 | verify |
| Retatrutide | Dec2, 15. 2025 | 99.41% | Lab E | Feb 22, 2026 | verify |
| GHK-Cu | Dec2, 15. 2025 | 99.76% | Lab E | Feb 22, 2026 | verify |
| Sermorelin | n/a | 98.7% | Lab E | Feb 20, 2026 | verify |
| Ipamorelin | Jul, 15. 2025 | 99.86% | Lab E | Feb 20, 2026 | verify |
| Retatrutide | n/a | 99.7% | Lab G | Feb 15, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | Feb 13, 2026 | verify |
| Tirzepatide | n/a | 99.5% | Lab E | Feb 11, 2026 | verify |
| Retatrutide | n/a | 99.8% | Lab G | Feb 10, 2026 | verify |
| Retatrutide | n/a | 99.7% | Lab E | Jan 26, 2026 | verify |
| Retatrutide | n/a | 99.6% | Lab E | Jan 26, 2026 | verify |
| Semaglutide | n/a | 99.8% | Lab G | Jan 15, 2026 | verify |
| Tirzepatide | n/a | 99.7% | Lab G | Jan 15, 2026 | verify |
| Tesamorelin | Sep, 15. 2025 | 97.18% | Lab E | Jan 15, 2026 | verify |
| Retatrutide | n/a | 99.69% | Lab E | Jan 7, 2026 | verify |
Showing 25 most recent of 134. 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.