Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by Shanghai Leader Peptide Biotechnology.
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Retatrutide | 29 | 99.26% | Sep 8, 2026 |
| Tirzepatide | 15 | 99.87% | Sep 2, 2026 |
| GHK-Cu | 11 | 99.75% | Jul 12, 2026 |
| Tesamorelin | 9 | 99.52% | Jun 3, 2026 |
| BPC-157 | 4 | 99.86% | Jun 1, 2026 |
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| Retatrutide | RT20-04-26 | 92.5% | Lab E | Sep 8, 2026 | verify |
| Retatrutide | n/a | 99.79% | Lab N | Sep 2, 2026 | verify |
| Tirzepatide | n/a | 99.99% | Lab N | Sep 2, 2026 | verify |
| Tirzepatide | n/a | n/a | Lab G | Aug 24, 2026 | verify |
| Retatrutide | n/a | 99.6% | Lab G | Jul 29, 2026 | verify |
| Tirzepatide | H0308 | 99.9% | Lab E | Jul 21, 2026 | verify |
| Retatrutide | RT20WT | 96.4% | Lab E | Jul 19, 2026 | verify |
| Tirzepatide | TR20BT | 99.9% | Lab E | Jul 19, 2026 | verify |
| Retatrutide | n/a | 99.8% | Lab G | Jul 19, 2026 | verify |
| Tirzepatide | TR20-04-26 | 99.9% | Lab E | Jul 12, 2026 | verify |
| GHK-Cu | H0304 | 99.9% | Lab E | Jul 12, 2026 | verify |
| GHK-Cu | H0304 | n/a | Lab G | Jun 4, 2026 | verify |
| Tesamorelin | H0323 | 99.7% | Lab G | Jun 3, 2026 | verify |
| BPC-157 | LP 2.2026 bpc | 99.9% | Lab E | Jun 1, 2026 | verify |
| GHK-Cu | H0304 | 99.6% | Lab G | May 31, 2026 | verify |
| Tirzepatide | H0323 | 99.9% | Lab G | May 24, 2026 | verify |
| GHK-Cu | LP 3.2026 ghk100 | 99.6% | Lab E | May 12, 2026 | verify |
| Retatrutide | n/a | 99.6% | Lab G | May 12, 2026 | verify |
| Tirzepatide | n/a | 99.9% | Lab E | May 7, 2026 | verify |
| Tesamorelin | n/a | 99.9% | Lab E | May 5, 2026 | verify |
| Retatrutide | H0129 | n/a | Lab E | May 5, 2026 | verify |
| Retatrutide | n/a | n/a | Lab E | May 5, 2026 | verify |
| Retatrutide | LP Reta March 2026 | 99.9% | Lab E | Apr 27, 2026 | verify |
| Retatrutide | 20251218-01 | 99.9% | Lab E | Apr 22, 2026 | verify |
| Retatrutide | n/a | 98.7% | Lab E | Apr 22, 2026 | verify |
Showing 25 most recent of 68. Search the full database on the CoA page.
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<a href="https://ascendpeptide.org/coa/vendor/shanghai-leader-peptide-biotechnology/" rel="noopener"> <img src="https://ascendpeptide.org/coa/badge/shanghai-leader-peptide-biotechnology.svg" alt="Shanghai Leader Peptide Biotechnology: lab tested, 68 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.