Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by Lipeptides.
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Retatrutide | 20 | 99.81% | Jun 11, 2026 |
| Tirzepatide | 8 | 99.63% | Mar 24, 2026 |
| GHK-Cu | 5 | 99.83% | Jun 15, 2026 |
| TB-500 | 4 | 98.21% | May 14, 2026 |
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| GHK-Cu | -- | 99.9% | Lab E | Jun 15, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | Jun 11, 2026 | verify |
| Retatrutide | -- | 99.7% | Lab G | Jun 11, 2026 | verify |
| Retatrutide | -- | 99.7% | Lab G | Jun 7, 2026 | verify |
| Retatrutide | -- | 99.8% | Lab E | Jun 1, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | May 31, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | May 27, 2026 | verify |
| GHK-Cu | -- | 99.5% | Lab E | May 26, 2026 | verify |
| TB-500 | -- | 99.5% | Lab G | May 14, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | May 10, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | May 7, 2026 | verify |
| Retatrutide | -- | 99.8% | Lab G | Apr 26, 2026 | verify |
| Retatrutide | -- | -- | Lab G | Apr 21, 2026 | verify |
| Tirzepatide | -- | 99.6% | Lab G | Mar 24, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab G | Mar 24, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | Mar 17, 2026 | verify |
| GHK-Cu | -- | 99.9% | Lab E | Mar 17, 2026 | verify |
| TB-500 | -- | 97.3% | Lab E | Mar 17, 2026 | verify |
| Tirzepatide | -- | 98.8% | Lab E | Mar 5, 2026 | verify |
| Tirzepatide | -- | 99.9% | Lab E | Mar 2, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | Mar 2, 2026 | verify |
| Tirzepatide | -- | 99.85% | Lab E | Feb 19, 2026 | verify |
| Tirzepatide | -- | 99.8% | Lab G | Feb 19, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | Feb 15, 2026 | verify |
| Tirzepatide | -- | 99.9% | Lab E | Feb 10, 2026 | verify |
Showing 25 most recent of 37. Search the full database on the CoA page.
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<a href="https://ascendpeptide.org/coa/vendor/lipeptides/" rel="noopener"> <img src="https://ascendpeptide.org/coa/badge/lipeptides.svg" alt="Lipeptides: lab tested, 37 CoAs on file at ASCEND Peptide" width="230" height="54"> </a>
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.