Is Quingdao Sigma Chemical Qsc Legit
Is Quingdao Sigma Chemical Qsc Legit? 7 independent lab tests across 1 product.
- 7 HPLC samples across 1 products
- 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 7 measured samples from Quingdao Sigma Chemical QSC, 2 came in more than 5% under the quantity on the label (29%). Another 1 measured more than 5% over. Purity across 7 readings ran from 99.11% to 99.95%, median 99.68%. Samples span Jul 2025 to Oct 2025.
- Under label
- 2/7
- Median purity
- 99.68%
- Latest sample
- Oct 2025
more than 5% short
99.11%–99.95% range
first tested Jul 2025
Lab testing results
Independent results across 1 product.
Tested products
| Product | Grade | Tests | Avg | Range | Latest | Price | $/mg |
|---|---|---|---|---|---|---|---|
| Tirzepatide | 7 | % | 99.1% – 99.9% | 10/29/2025 | — | — |
Individual lab tests
Date
10/29/2025
Purity
99.8%
Quantity
50mg → 45.300mg
Lab
Lab E
Vial
No Label / Silver Crimp / Clear Yellow Cap
Date
10/17/2025
Purity
99.44%
Quantity
10mg → 10.300mg
Lab
Lab E
Vial
White Label / Silver Crimp / Orange Cap
Date
10/17/2025
Purity
99.37%
Quantity
10mg → 10.500mg
Lab
Lab E
Vial
No Label / Silver Crimp / Orange Cap
Date
10/17/2025
Purity
99.95%
Quantity
50mg → 54.800mg
Lab
Lab E
Vial
White Label / Silver Crimp / Yellow Cap
Date
10/3/2025
Purity
99.68%
Quantity
60mg → 60.400mg
Lab
Lab E
Vial
No Label / Siver Crimp / Orange Cap
Date
9/18/2025
Purity
99.92%
Quantity
40mg → 36.900mg
Lab
Lab E
Vial
No Label / Silver Crimp / White Cap
Date
7/2/2025
Purity
99.11%
Quantity
10mg → 9.760mg
Lab
Lab E
Vial
No Label / Silver Crimp / Yellow Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| TirzepatideNo Label / Silver Crimp / Clear Yellow Cap | 10/29/2025 | 8.4 | 99.8% | 50mg → 45.300mg | Lab E | View |
| TirzepatideWhite Label / Silver Crimp / Orange Cap | 10/17/2025 | 8.9 | 99.44% | 10mg → 10.300mg | Lab E | View |
| TirzepatideNo Label / Silver Crimp / Orange Cap | 10/17/2025 | 7.0 | 99.37% | 10mg → 10.500mg | Lab E | View |
| TirzepatideWhite Label / Silver Crimp / Yellow Cap | 10/17/2025 | 8.6 | 99.95% | 50mg → 54.800mg | Lab E | View |
| TirzepatideNo Label / Siver Crimp / Orange Cap | 10/3/2025 | 7.5 | 99.68% | 60mg → 60.400mg | Lab E | View |
| TirzepatideNo Label / Silver Crimp / White Cap | 9/18/2025 | 7.2 | 99.92% | 40mg → 36.900mg | Lab E | View |
| TirzepatideNo Label / Silver Crimp / Yellow Cap | 7/2/2025 | 6.2 | 99.11% | 10mg → 9.760mg | Lab E | View |