Tirzepatide 99.8% Purity — Reta PeptideCertificate of Analysis · Independent third-party lab result
This COA was tested by an independent third-party lab, LabG. It reports 99.8% purity for Tirzepatide via HPLC and mass quantification. The tested quantity of 42.8mg showed a 7.0% deviation from the 40mg label. Endotoxin status is not applicable, and the test is recent (3-6 months old).
- no endotoxin test
- no batch ID
- quantity deviation (7.0%)
- Test date
- 2025-12-29
- Testing lab
- LabG
- Batch / lot
- (no batch ID)
- Quantity
- 42.8mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 7.1
- Label dose
- 40mg
How this result compares
This Tirzepatide certificate's tested purity of 99.80% ranks higher than 43% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).
Tested 2025-12-29 by LabG via HPLC + mass quantification + endotoxins. This test is newer than 50% 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
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