Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by Nuscience Peptides.
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Semaglutide | 14 | 99.02% | Sep 10, 2025 |
| Retatrutide | 8 | 97.47% | Feb 13, 2026 |
| Tirzepatide | 8 | 99.59% | Sep 24, 2026 |
| Melanotan II | 7 | 98.78% | May 8, 2026 |
| CJC-1295 DAC | 3 | 86.69% | May 5, 2025 |
| Mazdutide | 2 | 94.55% | May 6, 2025 |
| GHK-Cu | 2 | 99.97% | May 6, 2025 |
| BPC-157 | 2 | 99.49% | May 6, 2025 |
| Ipamorelin | 2 | 98.88% | May 7, 2025 |
| PT-141 | 2 | 97.15% | May 7, 2025 |
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| Tirzepatide | 00256 01/2028 | 99.9% | Lab E | Sep 24, 2026 | verify |
| Tirzepatide | 00256 01/2028 | 99.9% | Lab E | Aug 26, 2026 | verify |
| Melanotan II | 000256 | 99.9% | Lab G | May 8, 2026 | verify |
| Retatrutide | 092025 | 99.9% | Lab E | Feb 13, 2026 | verify |
| Tirzepatide | 0091825 | 99.95% | Lab E | Jan 15, 2026 | verify |
| Semaglutide | 00256 | 99.88% | Lab E | Sep 10, 2025 | verify |
| Tirzepatide | 000256 | 99.95% | Lab E | Sep 10, 2025 | verify |
| Semaglutide | 000176 | 99.94% | Lab E | Sep 10, 2025 | verify |
| Tirzepatide | 000256 | 99.89% | Lab E | Sep 10, 2025 | verify |
| Tirzepatide | 00256 | 99% | Lab E | Aug 31, 2025 | verify |
| Retatrutide | 00256 | 100% | Lab G | Jul 23, 2025 | verify |
| Retatrutide | 00256 | 99.089% | Lab D | May 21, 2025 | verify |
| Melanotan II | 00256 | 99.107% | Lab D | May 21, 2025 | verify |
| Melanotan II | 00256 | 99.254% | Lab D | May 21, 2025 | verify |
| Retatrutide | 00256 | 99.114% | Lab D | May 21, 2025 | verify |
| Semaglutide | 00256 | 99.86% | Lab E | May 16, 2025 | verify |
| Semaglutide | 00256 | 99.86% | Lab E | May 16, 2025 | verify |
| Semaglutide | 004225 | 100% | Lab E | May 7, 2025 | verify |
| Tirzepatide | 00269 | 99.08% | Lab E | May 7, 2025 | verify |
| Semaglutide | 00256 | 100% | Lab E | May 7, 2025 | verify |
| Semaglutide | 00256 | 100% | Lab E | May 7, 2025 | verify |
| Semaglutide | 004225 | 100% | Lab E | May 7, 2025 | verify |
| Tirzepatide | 00269 | 99.04% | Lab E | May 7, 2025 | verify |
| Ipamorelin | 00256 | 99.02% | Lab E | May 7, 2025 | verify |
| PT-141 | 00256 | 97.032% | Lab A | May 7, 2025 | verify |
Showing 25 most recent of 50. 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.