ZLZ Peptide -- Lab Test Results
Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by ZLZ Peptide.
258
CoAs on file
99.58%
Avg reported purity
10
Compounds tested
Jun 25, 2026
Latest test
Results by compound
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Retatrutide | 98 | 99.79% | Jun 25, 2026 |
| Tirzepatide | 90 | 99.71% | Jun 14, 2026 |
| Tesamorelin | 15 | 98.79% | Jun 23, 2026 |
| GHK-Cu | 14 | 99.81% | May 4, 2026 |
| BPC-157 | 11 | 99.53% | May 12, 2026 |
| Semaglutide | 10 | 99.62% | May 12, 2026 |
| Ipamorelin | 6 | 99.74% | Jan 25, 2026 |
| CJC-1295 | 5 | 99.54% | Mar 9, 2026 |
| TB-500 | 5 | 94.68% | May 12, 2026 |
| Sermorelin | 4 | 99.61% | Feb 19, 2026 |
Recent CoAs
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| Retatrutide | -- | 99.6% | Finnrick Lab G | Jun 25, 2026 | verify |
| Tesamorelin | TSM10 | 99.4% | Finnrick Lab E | Jun 23, 2026 | verify |
| Tesamorelin | 3/2/2026 | 98.3% | Finnrick Lab E | Jun 23, 2026 | verify |
| Retatrutide | 3/1/2026 | 99.9% | Finnrick Lab E | Jun 23, 2026 | verify |
| Retatrutide | R10 | 99.9% | Finnrick Lab E | Jun 23, 2026 | verify |
| Tirzepatide | -- | 99.9% | Lab E | Jun 14, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | Jun 14, 2026 | verify |
| Tirzepatide | -- | 99.9% | Lab E | Jun 14, 2026 | verify |
| Tirzepatide | -- | 99.8% | Lab G | Jun 11, 2026 | verify |
| Tesamorelin | -- | 99.9% | Lab E | May 19, 2026 | verify |
| Semaglutide | -- | 99.9% | Lab E | May 12, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | May 12, 2026 | verify |
| BPC-157 | -- | 99.9% | Lab E | May 12, 2026 | verify |
| TB-500 | -- | 99.3% | Lab E | May 12, 2026 | verify |
| Tirzepatide | 20260303 | 99.9% | Lab E | May 10, 2026 | verify |
| Tirzepatide | -- | 99.9% | Lab E | May 10, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | May 7, 2026 | verify |
| Semaglutide | -- | 99.9% | Lab E | May 5, 2026 | verify |
| Tirzepatide | -- | 99.9% | Lab E | May 5, 2026 | verify |
| Retatrutide | -- | 99.9% | Lab E | May 5, 2026 | verify |
| Tirzepatide | -- | 99.9% | Lab E | May 5, 2026 | verify |
| Tirzepatide | -- | 98.8% | Lab E | May 4, 2026 | verify |
| GHK-Cu | -- | 99.8% | Lab E | May 4, 2026 | verify |
| Tirzepatide | -- | 99.9% | Lab E | Apr 27, 2026 | verify |
| Tirzepatide | -- | 99.9% | Lab E | Apr 27, 2026 | verify |
Showing 25 most recent of 258. Search the full database on the CoA page.
Embed this badge
Sell or represent ZLZ Peptide? 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/zlz-peptide/" rel="noopener"> <img src="https://ascendpeptide.org/coa/badge/zlz-peptide.svg" alt="ZLZ Peptide: lab tested, 258 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.