Peptide Crafters: Lab Test Results
Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by Peptide Crafters.
41
CoAs on file
99.13%
Avg reported purity
7
Compounds tested
May 31, 2026
Latest test
Results by compound
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Semaglutide | 10 | 99.8% | Mar 19, 2025 |
| Retatrutide | 7 | 99.72% | May 31, 2026 |
| Tirzepatide | 6 | 99.64% | Mar 12, 2026 |
| BPC-157 | 6 | 99.29% | Dec 28, 2025 |
| CJC-1295 | 4 | 94.19% | Mar 19, 2025 |
| Melanotan II | 4 | 99.59% | Mar 19, 2025 |
| Ipamorelin | 4 | 99.88% | Mar 19, 2025 |
Recent CoAs
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| Retatrutide | 11.6 mg website | 99.9% | Finnrick Lab E | May 31, 2026 | verify |
| Tirzepatide | n/a | 99.7% | Lab G | Mar 12, 2026 | verify |
| BPC-157 | n/a | 99.94% | Lab E | Dec 28, 2025 | verify |
| Retatrutide | n/a | 99.7% | Lab G | Dec 15, 2025 | verify |
| Melanotan II | n/a | 99.41% | Lab B | Mar 19, 2025 | verify |
| CJC-1295 | n/a | 91.9% | Lab B | Mar 19, 2025 | verify |
| CJC-1295 | n/a | 91.41% | Lab B | Mar 19, 2025 | verify |
| BPC-157 | n/a | 99.39% | Lab B | Mar 19, 2025 | verify |
| Ipamorelin | n/a | 99.84% | Lab B | Mar 19, 2025 | verify |
| Semaglutide | n/a | 99.75% | Lab B | Mar 19, 2025 | verify |
| Semaglutide | n/a | 99.85% | Lab B | Mar 19, 2025 | verify |
| Melanotan II | n/a | 99.47% | Lab B | Mar 19, 2025 | verify |
| Retatrutide | n/a | 99.93% | Lab B | Mar 19, 2025 | verify |
| Tirzepatide | n/a | 99.89% | Lab B | Mar 19, 2025 | verify |
| Semaglutide | n/a | 99.53% | Lab C | Mar 9, 2025 | verify |
| Semaglutide | n/a | 99.8% | Lab C | Mar 9, 2025 | verify |
| Ipamorelin | n/a | 99.84% | Lab C | Mar 4, 2025 | verify |
| BPC-157 | n/a | 98.66% | Lab A | Mar 2, 2025 | verify |
| BPC-157 | n/a | 99.86% | Lab C | Mar 1, 2025 | verify |
| BPC-157 | n/a | 99.83% | Lab C | Mar 1, 2025 | verify |
| CJC-1295 | n/a | 96.68% | Lab A | Feb 27, 2025 | verify |
| Retatrutide | n/a | 99.58% | Lab C | Feb 27, 2025 | verify |
| Tirzepatide | n/a | 99.44% | Lab C | Feb 27, 2025 | verify |
| Ipamorelin | n/a | 99.96% | Lab C | Feb 27, 2025 | verify |
| Tirzepatide | n/a | 99.13% | Lab C | Feb 27, 2025 | verify |
Showing 25 most recent of 41. 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.