Zhejiang Yichenkang Biotechnology
Tirzepatide
Finnrick tested 8 samples of Tirzepatide (GLP-1 and GIP agonist) from Zhejiang Yichenkang Biotechnology between 11 Jun 2025 and 5 Dec 2025. Test scores average over 5, no score below 4, and at least 6 tests warrant a confident Finnrick Rating of C (Okay).
Finnrick Rating™
Zhejiang Yichenkang Biotechnology
Tirzepatide
Tested 8 Samples
Last test 5 Dec 2025
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 Tirzepatide tests from top-rated vendors:
All Tirzepatide tests from Zhejiang Yichenkang Biotechnology
Samples are tested in commercial labs
Tests Count
8
Scores
AVGMINMAX
Last
5 Dec 2025
First
11 Jun 2025
| Quantity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 5 Dec 2025 | View | 10mg | 9.4mg | -6.0% | 99.50% | (no batch ID) | No Label / Silver Crimp / Yellow Cap | Lab G | Public | |
| 5 Aug 2025 | View | 5mg | 4.79mg | -4.2% | 99.46% | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab D | Finnrick | |
| 24 Jul 2025 | View | 5mg | 4.7mg | -6.0% | 100.00% | (no batch ID) | (no data) | Lab G | Finnrick | |
| 24 Jul 2025 | View | 5mg | 4.7mg | -6.0% | 100.00% | (no batch ID) | (no data) | Lab G | Finnrick | |
| 11 Jul 2025 | View | 5mg | ⚠️ Sample does not contain Tirzepatide | (no batch ID) | (no data) | Lab E | Finnrick | |||
| 30 Jun 2025 | View | 5mg | 3.75mg | -25.0% | 99.69% | (no batch ID) | No Label / Silver Crimp / Black Cap | Lab E | Finnrick | |
| 25 Jun 2025 | View | 5mg | 4.83mg | -3.4% | 99.31% | (no batch ID) | (no data) | Lab A | Finnrick | |
| 25 Jun 2025 | View | 5mg | 4.69mg | -6.2% | 99.26% | (no batch ID) | (no data) | Lab A | Finnrick | |
| 11 Jun 2025 | View | 5mg | 4.21mg | -15.8% | 99.72% | (no batch ID) | (no data) | Lab E | Finnrick | |