Tirzepatide 99.1% Purity — Mai PeptideCertificate of Analysis · Independent third-party lab result
This COA was tested by an independent third-party lab, LabE. The tirzepatide batch (12/2025) showed 99.12% purity via HPLC. Quantity was slightly over label at 40.9mg (2.3% deviation). Endotoxin status is unknown. The test is recent (3-6 months old) and customers can verify on the lab's public URL.
- no endotoxin test
- Test date
- 2026-02-02
- Testing lab
- LabE
- Batch / lot
- 12/2025
- Quantity
- 40.9mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 8.2
- Label dose
- 40mg
How this result compares
This Tirzepatide certificate's tested purity of 99.12% ranks higher than 5% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).
Tested 2026-02-02 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 59% of our catalogued Tirzepatide certificates.
Mai Peptide has 77 certificates in our corpus, including 21 for Tirzepatide at a median tested purity of 99.68%.
Test report image
Finnrick
Artifact capturedWe have the certificate image (SHA-256 hash captured) — you can verify it loads from the upstream lab and matches the artifact shown here.
Verify on the upstream labSaved source document
sha256:6594b57ddc1c823b…
— immutable copy held by TitrateLab