PeptiSlim: Lab Test Results
Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by PeptiSlim.
74
CoAs on file
99.7%
Avg reported purity
6
Compounds tested
Sep 4, 2026
Latest test
Results by compound
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Tirzepatide | 32 | 99.82% | Sep 4, 2026 |
| Retatrutide | 26 | 99.75% | Jun 16, 2026 |
| GHK-Cu | 6 | 99.72% | Apr 22, 2026 |
| Semaglutide | 4 | 99.4% | Mar 24, 2026 |
| Tesamorelin | 4 | 98.88% | Jul 13, 2026 |
| Cagrilintide | 2 | 99.31% | Mar 6, 2026 |
Recent CoAs
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| Tirzepatide | n/a | 99.9% | Lab G | Sep 4, 2026 | verify |
| Tirzepatide | n/a | 99.8% | Lab G | Aug 27, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab G | Aug 27, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | Jul 20, 2026 | verify |
| Tirzepatide | 04/2026 | 99.9% | Lab E | Jul 20, 2026 | verify |
| Tesamorelin | 04/2026 | 98.2% | Lab E | Jul 13, 2026 | verify |
| Tirzepatide | n/a | 99.8% | Lab G | Jun 25, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | Jun 25, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | Jun 25, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | Jun 25, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | Jun 25, 2026 | verify |
| Tirzepatide | n/a | 99.8% | Lab E | Jun 22, 2026 | verify |
| Tirzepatide | January 6th, 2026 | 99.9% | Lab E | Jun 21, 2026 | verify |
| Tirzepatide | n/a | 99.7% | Lab G | Jun 16, 2026 | verify |
| Retatrutide | 258013 | 99.8% | Lab G | Jun 16, 2026 | verify |
| Tirzepatide | n/a | 99.8% | Lab G | Jun 16, 2026 | verify |
| Tirzepatide | 258008 | 99.8% | Lab G | Jun 16, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Jun 11, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Jun 11, 2026 | verify |
| GHK-Cu | n/a | 99.8% | Lab G | Apr 22, 2026 | verify |
| Tirzepatide | n/a | 99.7% | Lab G | Mar 24, 2026 | verify |
| Semaglutide | n/a | 99.9% | Lab G | Mar 24, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | Mar 15, 2026 | verify |
| GHK-Cu | n/a | 99.9% | Lab E | Mar 9, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab G | Mar 6, 2026 | verify |
Showing 25 most recent of 74. Search the full database on the CoA page.
Embed this badge
Sell or represent PeptiSlim? Link your customers to this page with the badge below. Free, no signup. The badge and counts update as new lab results land.
<a href="https://ascendpeptide.org/coa/vendor/peptislim/" rel="noopener"> <img src="https://ascendpeptide.org/coa/badge/peptislim.svg" alt="PeptiSlim: lab tested, 74 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.