Zhejiang Jiuzhou Chem Co reviews
4 independent lab tests across 1 product · 99.9% average purity
- 4 HPLC samples across 1 products
- Catalog avg purity 99.9%
- www.jiuzhou-chem.com
- Independent testing, no pay-to-rank
Boren Health independently tests products and verifies reviews. Public methodology, no pay-to-rank.
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What the testing shows
Across 4 measured samples from Zhejiang Jiuzhou Chem Co, 0 came in more than 5% under the quantity on the label (0%). Another 1 measured more than 5% over. Purity across 4 readings ran from 99.79% to 99.95%, median 99.85%. Samples span Oct 2025 to Mar 2026.
- Under label
- 0/4
- Median purity
- 99.85%
- Latest sample
- Mar 2026
- Ships from
- China
more than 5% short
99.79%–99.95% range
first tested Oct 2025
per vendor listing
Lab testing results
Independent results across 1 product.
Tested products
| Product | Grade | Tests | Avg | Range | Latest | Price | $/mg |
|---|---|---|---|---|---|---|---|
| Tirzepatide | AGREAT | 4 | 100.0% | 99.8% – 99.9% | 3/2/2026 | — | — |
Individual lab tests
Date
3/2/2026
Purity
99.9%
Quantity
30 mg → 33.2 mg
Lab
Krause Analytical
Vial
No Label / Gold Crimp / Clear Cap
Date
10/3/2025
Purity
99.95%
Quantity
15 mg → 14.5 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Teal Cap
Date
10/3/2025
Purity
99.8%
Quantity
60 mg → 60.1 mg
Lab
Krause Analytical
Vial
No Label / Silver Crimp / Blue Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| TirzepatideNo Label / Gold Crimp / Clear Cap | 3/2/2026 | 10.0 | 99.9% | 30 mg → 33.2 mg | Krause Analytical | View |
| Tirzepatide | 2/26/2026 | 10.0 | 99.79% | 15 mg → 14.8 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Teal Cap | 10/3/2025 | 10.0 | 99.95% | 15 mg → 14.5 mg | Krause Analytical | View |
| TirzepatideNo Label / Silver Crimp / Blue Cap | 10/3/2025 | 10.0 | 99.8% | 60 mg → 60.1 mg | Krause Analytical | View |
About Zhejiang Jiuzhou Chem Co
Finnrick has tested 4 samples from Zhejiang Jiuzhou Chem Co across 1 products.
Contact
- china
- www.jiuzhou-chem.com