Tirzepatide 99.8% Purity — Peptide PartnersCertificate of Analysis · Independent third-party lab result
LabE tested this tirzepatide batch (TZ20250730) at 99.83% purity via HPLC and performed mass quantification. The tested quantity was 36.9mg against a 40mg label, a deviation of -7.8%. Endotoxin status is not available, and the test is older (6-12 months). Customers can cross-check on the lab's public verification URL.
- no endotoxin test
- stale (6-12 months)
- quantity deviation (-7.8%)
- Test date
- 2025-10-03
- Testing lab
- LabE
- Batch / lot
- TZ20250730
- Quantity
- 36.9mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 8.9
- Label dose
- 40mg
How this result compares
This Tirzepatide certificate's tested purity of 99.83% ranks higher than 51% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).
Tested 2025-10-03 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 31% of our catalogued Tirzepatide certificates.
Peptide Partners has 77 certificates in our corpus, including 7 for Tirzepatide at a median tested purity of 99.74%.
Test report image
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