Is Quingdao Sigma Chemical Qsc Legit
Is Quingdao Sigma Chemical Qsc Legit? 7 independent lab tests across 1 product, with a limited lab record.
Written by the Peptide Vendor Reviews editorial team
Lab record: Limited
How we rate- 7 independent tests
- 5 of 7 lots filled to label
- Median purity 99.68%
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Quingdao Sigma Chemical QSC products we've tested
Best-graded first. Grades come from the share of each product's samples that passed purity and quantity checks. Buy links open Quingdao Sigma Chemical QSC's site.
- Tests
- 7
- Passed
- —
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.
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
| 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 |
Which Quingdao Sigma Chemical QSC products tested best
2 of 7 measured lots came in more than 5% under label.
Buying from Quingdao Sigma Chemical QSC
We don't track Quingdao Sigma Chemical QSC's prices yet. Shipping, payment and refund terms are on their site.
What to check before you pay
- The lot number on the vial matches the certificate
- The certificate names the lab and the test date
- Fill versus label, not purity alone
- A refund policy in writing
Track Quingdao Sigma Chemical QSC
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Quingdao Sigma Chemical QSC: common questions
Is Quingdao Sigma Chemical QSC legit?
We rate lab records, not businesses. Limited lab record: 7 independent tests, 5 of 7 lots filled to label, median purity 99.68%. Each result links to its original certificate in the table above.
What do Quingdao Sigma Chemical QSC reviews say?
We don't hold scored customer reviews for Quingdao Sigma Chemical QSC yet. The independent lab results on this page are the evidence we have.
Is there a Quingdao Sigma Chemical QSC coupon code?
We don't have a verified Quingdao Sigma Chemical QSC coupon code. A discount changes the price, not what is in the vial.