SPB: Lab Test Results
Independent Certificates of Analysis aggregated from public lab results. Not affiliated with or paid by SPB.
15
CoAs on file
99.84%
Avg reported purity
3
Compounds tested
Sep 24, 2026
Latest test
Results by compound
| Compound | CoAs | Avg purity | Latest |
|---|---|---|---|
| Retatrutide | 10 | 99.86% | Sep 24, 2026 |
| Tirzepatide | 3 | 99.72% | May 11, 2026 |
| GHK-Cu | 2 | 99.9% | Aug 26, 2026 |
Recent CoAs
| Compound | Batch | Purity | Lab | Tested | |
|---|---|---|---|---|---|
| Retatrutide | SD26LY-2-01 | 99.9% | Lab E | Sep 24, 2026 | verify |
| Retatrutide | SD26LY-1-01 | 99.9% | Lab E | Sep 24, 2026 | verify |
| Retatrutide | R2026LY-3Z | 99.9% | Lab G | Sep 16, 2026 | verify |
| Retatrutide | SR1026LY-3-01 | 99.9% | Lab E | Aug 26, 2026 | verify |
| Retatrutide | SD26LY-2-01 | 99.9% | Lab E | Aug 26, 2026 | verify |
| GHK-Cu | SJ26LY-2-01 | 99.9% | Lab E | Aug 26, 2026 | verify |
| Retatrutide | SD26LY-1-01 | 99.9% | Lab E | Aug 26, 2026 | verify |
| Retatrutide | SD25-1-01 | 99.9% | Lab E | Jul 20, 2026 | verify |
| GHK-Cu | SJ25-02-1 | 99.9% | Lab E | Jun 16, 2026 | verify |
| Tirzepatide | SN26-1-02 | 99.9% | Lab E | May 11, 2026 | verify |
| Retatrutide | n/a | 99.9% | Lab E | Apr 28, 2026 | verify |
| Retatrutide | SD25-1-01 | 99.7% | Lab G | Mar 1, 2026 | verify |
| Retatrutide | SD25-1-01 | 99.7% | Lab G | Feb 4, 2026 | verify |
| Tirzepatide | n/a | 99.87% | Lab E | Nov 6, 2025 | verify |
| Tirzepatide | n/a | 99.4% | Lab G | Oct 30, 2025 | verify |
Showing 15 most recent of 15. Search the full database on the CoA page.
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<a href="https://ascendpeptide.org/coa/vendor/spb/" rel="noopener"> <img src="https://ascendpeptide.org/coa/badge/spb.svg" alt="SPB: lab tested, 15 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.