Tirzepatide 99.0% Purity — OupeptideCertificate of Analysis · Independent third-party lab result
LabE tested this tirzepatide batch (Sept 2 2025) at 98.97% purity via HPLC and mass quantification. However, the tested quantity was significantly lower than the label (15.3mg vs 60mg), representing a -74.5% deviation. No endotoxin test results were provided. The test is recent (3-6 months old). Customers can cross-check on the lab's public verification URL.
- major quantity deviation
- no endotoxin test
- Test date
- 2026-01-19
- Testing lab
- LabE
- Batch / lot
- Sept 2 2025
- Quantity
- 15.3mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 4.3
- Label dose
- 60mg
How this result compares
This Tirzepatide certificate's tested purity of 98.97% ranks higher than 4% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).
Tested 2026-01-19 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 55% of our catalogued Tirzepatide certificates.
Oupeptide has 188 certificates in our corpus, including 65 for Tirzepatide at a median tested purity of 99.80%.
Test report image
Finnrick
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