ZLZ Peptide: Lab Test Results
Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by ZLZ Peptide.
282
CoAs on file
99.59%
Avg reported purity
12
Compounds tested
Sep 7, 2026
Latest test
Results by compound
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Retatrutide | 106 | 99.8% | Sep 7, 2026 |
| Tirzepatide | 94 | 99.72% | Aug 20, 2026 |
| Tesamorelin | 17 | 98.86% | Sep 3, 2026 |
| GHK-Cu | 17 | 99.81% | Jul 22, 2026 |
| BPC-157 | 13 | 99.51% | Jul 22, 2026 |
| Semaglutide | 12 | 99.67% | Sep 4, 2026 |
| Ipamorelin | 6 | 99.74% | Jan 25, 2026 |
| Sermorelin | 5 | 99.59% | Jul 14, 2026 |
| CJC-1295 No DAC | 5 | 99.54% | Mar 9, 2026 |
| TB-500 | 5 | 94.78% | Jul 14, 2026 |
| NAD+ | 1 | 98.3% | Aug 25, 2026 |
| TB-500 Thymosin Beta-4 | 1 | 99.3% | May 12, 2026 |
Recent CoAs
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| Retatrutide | n/a | 99.9% | Lab G | Sep 7, 2026 | verify |
| Semaglutide | n/a | 99.9% | Lab G | Sep 4, 2026 | verify |
| Tesamorelin | May/2026 | 99.9% | Lab E | Sep 3, 2026 | verify |
| NAD+ | n/a | 98.3% | Lab E | Aug 25, 2026 | verify |
| Retatrutide | RT20-ZLZ01 | 99.8% | Lab G | Aug 24, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab G | Aug 20, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Aug 12, 2026 | verify |
| Retatrutide | RT0527A | 99.9% | Lab E | Aug 11, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Aug 4, 2026 | verify |
| Tirzepatide | T62926 | 99.7% | Lab E | Aug 4, 2026 | verify |
| Retatrutide | 326RT20-04 | 99.9% | Lab E | Aug 4, 2026 | verify |
| GHK-Cu | 315CU50-04 | 99.9% | Lab E | Jul 22, 2026 | verify |
| Tesamorelin | 401TSM10-04 | 99% | Lab E | Jul 22, 2026 | verify |
| BPC-157 | 320BC10-04 | 99.7% | Lab E | Jul 22, 2026 | verify |
| TB-500 | n/a | 99.8% | Lab G | Jul 14, 2026 | verify |
| Sermorelin | n/a | 99.5% | Lab G | Jul 14, 2026 | verify |
| BPC-157 | n/a | 99% | Lab G | Jul 14, 2026 | verify |
| GHK-Cu | n/a | 99.7% | Lab G | Jul 14, 2026 | verify |
| Retatrutide | 326RT10-04 | 99.9% | Lab E | Jul 12, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab G | Jul 9, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab G | Jul 9, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | Jun 30, 2026 | verify |
| Semaglutide | n/a | 99.9% | Lab E | Jun 30, 2026 | verify |
| GHK-Cu | n/a | 99.9% | Lab E | Jun 30, 2026 | verify |
| Retatrutide | n/a | 99.6% | Lab G | Jun 25, 2026 | verify |
Showing 25 most recent of 282. 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.