Marvel Pep: Lab Test Results
Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by Marvel Pep.
35
CoAs on file
99.78%
Avg reported purity
5
Compounds tested
Sep 24, 2026
Latest test
Results by compound
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Retatrutide | 20 | 99.75% | Sep 24, 2026 |
| Tirzepatide | 5 | 99.83% | Sep 19, 2026 |
| GHK-Cu | 5 | 99.91% | Sep 9, 2026 |
| Ipamorelin | 3 | 99.6% | Aug 12, 2026 |
| Tesamorelin | 2 | 99.9% | Aug 12, 2026 |
Recent CoAs
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| Retatrutide | n/a | 99.9% | Lab L | Sep 24, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab G | Sep 19, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab G | Sep 16, 2026 | verify |
| Retatrutide | n/a | 99.7% | Lab G | Sep 16, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab G | Sep 16, 2026 | verify |
| GHK-Cu | n/a | 99.9% | Lab E | Sep 9, 2026 | verify |
| Ipamorelin | n/a | 99% | Lab E | Aug 12, 2026 | verify |
| Tesamorelin | n/a | 99.9% | Lab E | Aug 12, 2026 | verify |
| Ipamorelin | n/a | 99.9% | Lab G | Aug 9, 2026 | verify |
| Retatrutide | 260139 | 99.7% | 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 6, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Aug 3, 2026 | verify |
| Retatrutide | 258014 | 99.8% | Lab G | Jul 30, 2026 | verify |
| GHK-Cu | n/a | 99.9% | Lab E | Jul 13, 2026 | verify |
| Retatrutide | n/a | 99.2% | Lab E | Jul 13, 2026 | verify |
| Tirzepatide | n/a | 99.8% | Lab G | Jun 8, 2026 | verify |
| Retatrutide | n/a | 99.8% | Lab G | Jun 8, 2026 | verify |
| Retatrutide | 258013 | 99.9% | Lab E | Jun 2, 2026 | verify |
| Retatrutide | n/a | 99.6% | Lab G | Apr 2, 2026 | verify |
| Retatrutide | 021526 | 99.8% | Lab G | Mar 7, 2026 | verify |
| Ipamorelin | n/a | 99.9% | Lab E | Mar 2, 2026 | verify |
| GHK-Cu | n/a | 99.9% | Lab E | Mar 2, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Feb 18, 2026 | verify |
| Retatrutide | Marv2510220131 | 99.9% | Lab E | Feb 11, 2026 | verify |
Showing 25 most recent of 35. Search the full database on the CoA page.
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<a href="https://ascendpeptide.org/coa/vendor/marvel-pep/" rel="noopener"> <img src="https://ascendpeptide.org/coa/badge/marvel-pep.svg" alt="Marvel Pep: lab tested, 35 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.