Peptide Sciences: Lab Test Results
Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by Peptide Sciences.
130
CoAs on file
99.63%
Avg reported purity
10
Compounds tested
Jun 16, 2026
Latest test
Results by compound
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Retatrutide | 41 | 99.64% | Jun 16, 2026 |
| Tirzepatide | 16 | 99.56% | Mar 2, 2026 |
| Semaglutide | 15 | 99.77% | Feb 28, 2026 |
| BPC-157 | 13 | 99.66% | Feb 3, 2026 |
| CJC-1295 | 11 | 99.35% | May 5, 2026 |
| Melanotan II | 10 | 99.34% | Feb 18, 2025 |
| Ipamorelin | 9 | 99.82% | May 19, 2025 |
| GHK-Cu | 6 | 99.85% | Feb 25, 2026 |
| PT-141 | 6 | 99.82% | Aug 11, 2025 |
| Tesamorelin | 3 | 98.95% | Apr 27, 2026 |
Recent CoAs
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| Retatrutide | n/a | 99.8% | Lab G | Jun 16, 2026 | verify |
| CJC-1295 | n/a | n/a | Lab E | May 5, 2026 | verify |
| Retatrutide | n/a | n/a | Lab E | Apr 27, 2026 | verify |
| Retatrutide | n/a | n/a | Lab E | Apr 27, 2026 | verify |
| Tesamorelin | n/a | n/a | Lab E | Apr 27, 2026 | verify |
| Retatrutide | n/a | n/a | Lab G | Apr 1, 2026 | verify |
| Tirzepatide | n/a | 99.4% | Lab E | Mar 2, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Mar 1, 2026 | verify |
| Tirzepatide | n/a | 99.8% | Lab G | Feb 28, 2026 | verify |
| Semaglutide | n/a | 99.5% | Lab G | Feb 28, 2026 | verify |
| GHK-Cu | n/a | 99.7% | Lab E | Feb 25, 2026 | verify |
| Tesamorelin | n/a | 99% | Lab G | Feb 19, 2026 | verify |
| Tirzepatide | n/a | 99.8% | Lab G | Feb 19, 2026 | verify |
| Tirzepatide | n/a | 99.8% | Lab G | Feb 14, 2026 | verify |
| CJC-1295 | n/a | 99.8% | Lab G | Feb 14, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Feb 12, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Feb 10, 2026 | verify |
| GHK-Cu | n/a | 99.8% | Lab G | Feb 9, 2026 | verify |
| BPC-157 | n/a | 99.7% | Lab G | Feb 3, 2026 | verify |
| Tesamorelin | n/a | 98.9% | Lab E | Oct 8, 2025 | verify |
| BPC-157 | n/a | 99.95% | Lab E | Oct 2, 2025 | verify |
| PT-141 | n/a | 100% | Lab G | Aug 11, 2025 | verify |
| Retatrutide | n/a | 99.31% | Lab D | Aug 3, 2025 | verify |
| Retatrutide | n/a | 99.28% | Lab D | Aug 3, 2025 | verify |
| PT-141 | n/a | 99.74% | Lab E | Jul 30, 2025 | verify |
Showing 25 most recent of 130. 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.