Zhengzhou Lanyun -- Lab Test Results
Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by Zhengzhou Lanyun.
16
CoAs on file
99.41%
Avg reported purity
2
Compounds tested
Jun 7, 2026
Latest test
Results by compound
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Retatrutide | 9 | 99.05% | Jun 7, 2026 |
| Tirzepatide | 7 | 99.87% | May 24, 2026 |
Recent CoAs
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| Retatrutide | -- | 99.8% | Finnrick Lab G | Jun 7, 2026 | verify |
| Retatrutide | -- | 99.9% | Finnrick Lab E | May 26, 2026 | verify |
| Tirzepatide | -- | 99.9% | Finnrick Lab G | May 24, 2026 | verify |
| Retatrutide | -- | 99.5% | Finnrick Lab E | Mar 2, 2026 | verify |
| Retatrutide | -- | 95.87% | Finnrick Lab E | Feb 25, 2026 | verify |
| Tirzepatide | -- | 99.9% | Finnrick Lab G | Feb 3, 2026 | verify |
| Tirzepatide | -- | 99.9% | Finnrick Lab E | Jan 28, 2026 | verify |
| Retatrutide | -- | 99.8% | Finnrick Lab G | Jan 25, 2026 | verify |
| Retatrutide | -- | 97.55% | Finnrick Lab E | Jan 18, 2026 | verify |
| Tirzepatide | -- | 99.8% | Finnrick Lab G | Jan 14, 2026 | verify |
| Retatrutide | -- | 99.6% | Finnrick Lab G | Jan 14, 2026 | verify |
| Tirzepatide | -- | 99.7% | Finnrick Lab G | Jan 6, 2026 | verify |
| Retatrutide | -- | 99.6% | Finnrick Lab G | Jan 6, 2026 | verify |
| Retatrutide | -- | 99.8% | Finnrick Lab G | Jan 6, 2026 | verify |
| Tirzepatide | -- | 99.92% | Finnrick Lab E | Jan 1, 2026 | verify |
| Tirzepatide | -- | 99.95% | Finnrick Lab E | Dec 30, 2025 | verify |
Showing 16 most recent of 16. Search the full database on the CoA page.
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<a href="https://ascendpeptide.org/coa/vendor/zhengzhou-lanyun/" rel="noopener"> <img src="https://ascendpeptide.org/coa/badge/zhengzhou-lanyun.svg" alt="Zhengzhou Lanyun: lab tested, 16 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.