Mai Peptide
Retatrutide
Finnrick tested 14 samples of Retatrutide (GLP-1, GIP, and GCGR agonist) from Mai Peptide between 4 Nov 2025 and 26 Jan 2026. Test scores average below 4 or some scores below 3, and at least 6 tests, warrant a confident Finnrick Rating of E (Bad).
Finnrick Rating™
Mai Peptide
Retatrutide
Tested 14 Samples
Last test 26 Jan 2026
Take Action
Researcher
Request Full Data Access to the Finnrick database of peptide tests.
Free peptide testing
Mail in a sample (US only) to get confidence for the specific vials you have, and contribute to identifying unsafe supply chains, so other people can avoid risky and costly mistakes.
Other Retatrutide tests from top-rated vendors:
All Retatrutide tests from Mai Peptide
Samples are tested in commercial labs
Tests Count
14
Scores
AVGMINMAX
Last
26 Jan 2026
First
4 Nov 2025
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Endotoxins | Batch ID | Container | Tested At | Sent By |
| 26 Jan 2026 | View | 40mg | 39.4mg | -1.5% | 99.90% | n/a | October 8, 2025 | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 26 Jan 2026 | View | 10mg | 10.1mg | +1.0% | 99.80% | n/a | (no batch ID) | Silver Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 22 Jan 2026 | View | 50mg | 57.8mg | +15.6% | 99.80% | n/a | (no batch ID) | White Label / Silver Crimp / Yellow Cap | Lab G | Public | |
| 22 Jan 2026 | View | 10mg | 10mg | 99.80% | n/a | 12/25/2025 | No Label / Silver Crimp / Clear Blue Cap | Lab G | Public | ||
| 7 Jan 2026 | View | 20mg | 18.1mg | -9.5% | 99.95% | n/a | November 4,2025 | White Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 7 Jan 2026 | View | 10mg | 10.1mg | +1.0% | 99.95% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 1 Jan 2026 | View | 20mg | 19.7mg | -1.5% | 99.80% | n/a | (no batch ID) | No Label / Silver Crimp / White Cap | Lab G | Public | |
| 29 Dec 2025 | View | 10mg | 9.56mg | -4.4% | 99.95% | n/a | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab E | Public | |
| 29 Dec 2025 | View | 10mg | 8.29mg | -17.1% | 81.94% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 13 Dec 2025 | View | 15mg | 15.2mg | +1.3% | 99.20% | n/a | (no batch ID) | White Label / Silver Crimp / Clear Cap | Lab G | Public | |
| 12 Dec 2025 | View | 10mg | 10.6mg | +6.0% | 99.95% | not detected | October 8, 2025 | No Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 23 Nov 2025 | View | 30mg | 31.8mg | +6.0% | 99.80% | n/a | October 8, 2025 | No Label / Silver Crimp / Pink Cap | Lab G | Public | |
| 14 Nov 2025 | View | 15mg | 16.4mg | +9.3% | 99.80% | n/a | 09/04/2025 | No Label / Copper Crimp / Clear Cap | Lab G | Public | |
| 4 Nov 2025 | View | 10mg | 11.1mg | +11.0% | 99.50% | n/a | September 6, 2025 | No Label / Silver Crimp / Clear Blue Cap | Lab G | Public | |