Third-party lab testing: 2 independent Janoshik assays on file, covering 2 substances, median measured purity 99.4%, most recent test 2025-10-09.
| Substance | Measured purity | Test date |
|---|---|---|
| Retatrutide 40mg | 99.72% | 2025-10-09 |
| Retatrutide 12mg | 99.11% | 2025-08-27 |