Tirzepatide 99.4% Purity — Zlz PeptideCertificate of Analysis · Independent third-party lab result
LabE tested this Tirzepatide at 99.38% purity using HPLC and mass quantification. The tested quantity of 19.9mg was within 1% of the 20mg label. However, no endotoxin status was provided, and the test is older (6-12 months). Customers can cross-check on the lab's public verification URL.
- no endotoxin test
- older (6-12 months)
- Test date
- 2025-10-23
- Testing lab
- LabE
- Batch / lot
- (no batch ID)
- Quantity
- 19.9mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 6.8
- Label dose
- 20mg
How this result compares
This Tirzepatide certificate's tested purity of 99.38% ranks higher than 9% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).
Tested 2025-10-23 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 35% of our catalogued Tirzepatide certificates.
Zlz Peptide has 274 certificates in our corpus, including 94 for Tirzepatide at a median tested purity of 99.80%.
Test report image
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