WllyBIO
Tirzepatide
Finnrick tested 11 samples of Tirzepatide (GLP-1 and GIP agonist) from WllyBIO between 31 Aug 2025 and 28 Apr 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™
WllyBIO
Tirzepatide
Tested 11 Samples
Last test 28 Apr 2026
Take Action
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 Tirzepatide tests from top-rated vendors:
All Tirzepatide tests from WllyBIO
Samples are tested in commercial labs
Tests Count
11
Scores
AVGMINMAX
Last
28 Apr 2026
First
31 Aug 2025
| Quantity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 28 Apr 2026 | View | 30mg | 27.3mg | -9.0% | 99.90% | (no batch ID) | No Label / Silver Crimp / Red Cap | Lab E | Public | |
| 28 Apr 2026 | View | 10mg | 10.3mg | +3.0% | 99.90% | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab E | Public | |
| 28 Apr 2026 | View | 20mg | 20.1mg | +0.5% | 99.90% | (no batch ID) | No Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 29 Dec 2025 | View | 10mg | 9.71mg | -2.9% | 99.95% | (no batch ID) | No Label / Silver Crimp / Gray Cap | Lab E | Public | |
| 17 Nov 2025 | View | 30mg | 30.2mg | +0.7% | 99.95% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 17 Nov 2025 | View | 20mg | 23.3mg | +16.5% | 99.69% | (no batch ID) | No Label / Silver Crimp / Violet Cap | Lab E | Public | |
| 29 Oct 2025 | View | 5mg | 4.16mg | -16.8% | 98.88% | (no batch ID) | No Label / Silver Crimp / White Cap | Lab E | Public | |
| 31 Aug 2025 | View | 5mg | 4.86mg | -2.8% | 99.80% | (no batch ID) | White Label / Silver Crimp / White Cap | Lab E | Public | |
| 31 Aug 2025 | View | 10mg | 9.9mg | -1.0% | 98.93% | (no batch ID) | White Label / Silver Crimp / White Cap | Lab E | Public | |
| 31 Aug 2025 | View | 15mg | 15.3mg | +2.0% | 99.70% | (no batch ID) | White Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 31 Aug 2025 | View | 5mg | ⚠️ Sample does not contain Tirzepatide | (no batch ID) | No Label / Silver Crimp / White Cap | Lab E | Public | |||