Third-party lab testing: 2 independent Janoshik assays on file, covering 2 substances, median measured purity 99.2%, most recent test 2026-02-04.
| Substance | Measured purity | Test date |
|---|---|---|
| Retatrutide 40mg | 99.28% | 2026-02-04 |
| Retatrutide 20mg | 99.07% | 2026-02-04 |