Tirzepatide 99.6% Purity — Reta PeptideCertificate of Analysis · Independent third-party lab result
This COA was tested by an independent third-party lab, LabE. The Tirzepatide batch (July 17, 2025) showed 99.62% purity via HPLC. Quantity was slightly over at 5.15mg (3% deviation) for a 5mg label. Endotoxin status is not applicable, 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
- 2025-09-04
- Testing lab
- LabE
- Batch / lot
- July 17, 2025
- Quantity
- 5.15mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 9.3
- Label dose
- 5mg
How this result compares
This Tirzepatide certificate's tested purity of 99.62% ranks higher than 19% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).
Tested 2025-09-04 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 27% of our catalogued Tirzepatide certificates.
Reta Peptide has 249 certificates in our corpus, including 38 for Tirzepatide at a median tested purity of 99.87%.
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
sha256:5c2d6a396038b888…
— immutable copy held by TitrateLab