Zen Peptides
Retatrutide
Finnrick tested 10 samples of Retatrutide (GLP-1, GIP, and GCGR agonist) from Zen Peptides between 23 Oct 2025 and 20 Jul 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™
Zen Peptides
Retatrutide
Tested 10 Samples
Last test 20 Jul 2026
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Samples are tested in commercial labs
Tests Count
10
Scores
AVGMINMAX
Last
20 Jul 2026
First
23 Oct 2025
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Endotoxins | Batch ID | Container | Tested At | Sent By |
| 20 Jul 2026 | View | 20mg | ⚠️ Sample does not contain Retatrutide | n/a | (no batch ID) | No label / Silver crimp / Black cap | Lab G | Public | |||
| 3 Mar 2026 | View | 10mg | 9.88mg | -1.2% | 99.81% | low | (no batch ID) | No Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 3 Mar 2026 | View | 30mg | 25mg | -16.7% | 99.78% | low | (no batch ID) | White Label / Silver Crimp / Black Cap | Lab E | Public | |
| 10 Feb 2026 | View | 10mg | 10.5mg | +5.0% | 99.70% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab G | Public | |
| 7 Jan 2026 | View | 10mg | 9.8mg | -2.0% | 99.80% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab G | Public | |
| 1 Jan 2026 | View | 15mg | 17.5mg | +16.7% | 99.60% | n/a | (no batch ID) | No Label / Silver Crimp / Clear Cap | Lab G | Public | |
| 10 Dec 2025 | View | 10mg | 8.65mg | -13.5% | 99.20% | n/a | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab G | Public | |
| 17 Nov 2025 | View | 10mg | 9.56mg | -4.4% | 99.81% | n/a | (no batch ID) | White Label / Silver Crimp / Clear Blue Cap | Lab E | Public | |
| 17 Nov 2025 | View | 5mg | 5.14mg | +2.8% | 98.93% | n/a | (no batch ID) | No Label / Silver Crimp / Yellow Cap | Lab E | Public | |
| 23 Oct 2025 | View | 10mg | 10.6mg | +6.0% | 98.83% | n/a | August 2, 2025 | No Label / Silver Crimp / Green Cap | Lab E | Public | |