PeptiSlim -- Lab Test Results
Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by PeptiSlim.
62
CoAs on file
99.69%
Avg reported purity
6
Compounds tested
Jun 21, 2026
Latest test
Results by compound
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Retatrutide | 26 | 99.75% | Jun 16, 2026 |
| Tirzepatide | 21 | 99.79% | Jun 21, 2026 |
| GHK-Cu | 6 | 99.72% | Apr 22, 2026 |
| Semaglutide | 4 | 99.4% | Mar 24, 2026 |
| Tesamorelin | 3 | 99.1% | Feb 17, 2026 |
| Cagrilintide | 2 | 99.31% | Mar 6, 2026 |
Recent CoAs
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| Tirzepatide | January 6th, 2026 | 99.9% | Finnrick Lab E | Jun 21, 2026 | verify |
| Tirzepatide | -- | 99.7% | Lab G | Jun 16, 2026 | verify |
| Retatrutide | 258013 | 99.8% | Lab G | Jun 16, 2026 | verify |
| Tirzepatide | -- | 99.8% | Lab G | Jun 16, 2026 | verify |
| Tirzepatide | 258008 | 99.8% | Lab G | Jun 16, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | Jun 11, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | Jun 11, 2026 | verify |
| GHK-Cu | -- | 99.8% | Lab G | Apr 22, 2026 | verify |
| Tirzepatide | -- | 99.7% | Lab G | Mar 24, 2026 | verify |
| Semaglutide | -- | 99.9% | Lab G | Mar 24, 2026 | verify |
| Tirzepatide | -- | 99.9% | Lab E | Mar 15, 2026 | verify |
| GHK-Cu | -- | 99.9% | Lab E | Mar 9, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab G | Mar 6, 2026 | verify |
| Cagrilintide | -- | 99.9% | Lab G | Mar 6, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | Mar 5, 2026 | verify |
| Tirzepatide | -- | 99.15% | Lab E | Mar 3, 2026 | verify |
| Tirzepatide | -- | 99.85% | Lab E | Mar 3, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | Mar 2, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | Feb 25, 2026 | verify |
| Tirzepatide | -- | 99.9% | Lab E | Feb 25, 2026 | verify |
| GHK-Cu | -- | 99.9% | Lab E | Feb 21, 2026 | verify |
| Tirzepatide | -- | 99.88% | Lab E | Feb 19, 2026 | verify |
| Retatrutide | -- | 99.76% | Lab E | Feb 19, 2026 | verify |
| GHK-Cu | -- | 99.9% | Lab E | Feb 18, 2026 | verify |
| Tesamorelin | -- | 99.31% | Lab E | Feb 17, 2026 | verify |
Showing 25 most recent of 62. 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.