LSPL: Lab Test Results
Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by LSPL.
46
CoAs on file
98.76%
Avg reported purity
3
Compounds tested
Jun 1, 2026
Latest test
Results by compound
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Retatrutide | 22 | 97.75% | May 7, 2026 |
| Tirzepatide | 18 | 99.61% | Jun 1, 2026 |
| GHK-Cu | 6 | 99.9% | Feb 21, 2026 |
Recent CoAs
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| Tirzepatide | n/a | 99.8% | Lab E | Jun 1, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | May 7, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | May 4, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Mar 18, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | Mar 5, 2026 | verify |
| Tirzepatide | n/a | 99.3% | Lab E | Mar 5, 2026 | verify |
| GHK-Cu | n/a | 99.9% | Lab E | Feb 21, 2026 | verify |
| Tirzepatide | n/a | 99.87% | Lab E | Feb 19, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Feb 19, 2026 | verify |
| GHK-Cu | n/a | 99.9% | Lab E | Feb 17, 2026 | verify |
| Tirzepatide | n/a | 99.32% | Lab E | Feb 17, 2026 | verify |
| Retatrutide | n/a | 98.72% | Lab E | Jan 28, 2026 | verify |
| Retatrutide | n/a | 99.59% | Lab E | Jan 28, 2026 | verify |
| Tirzepatide | n/a | 99.95% | Lab E | Jan 18, 2026 | verify |
| Tirzepatide | n/a | 98.45% | Lab E | Jan 14, 2026 | verify |
| Retatrutide | n/a | 99.15% | Lab E | Jan 6, 2026 | verify |
| Tirzepatide | n/a | 99.5% | Lab G | Dec 31, 2025 | verify |
| Retatrutide | n/a | 99.6% | Lab G | Dec 28, 2025 | verify |
| Retatrutide | n/a | 99.6% | Lab G | Dec 28, 2025 | verify |
| Tirzepatide | n/a | 99.95% | Lab E | Dec 21, 2025 | verify |
| Tirzepatide | n/a | 99.77% | Lab E | Dec 21, 2025 | verify |
| Retatrutide | n/a | 99.6% | Lab G | Dec 15, 2025 | verify |
| Retatrutide | n/a | 99.8% | Lab G | Dec 15, 2025 | verify |
| Retatrutide | n/a | 99.4% | Lab G | Dec 12, 2025 | verify |
| Retatrutide | n/a | 99.5% | Lab G | Dec 12, 2025 | verify |
Showing 25 most recent of 46. Search the full database on the CoA page.
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<a href="https://ascendpeptide.org/coa/vendor/lspl/" rel="noopener"> <img src="https://ascendpeptide.org/coa/badge/lspl.svg" alt="LSPL: lab tested, 46 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.