Retatrutide 98.9% Purity — Zen PeptidesCertificate of Analysis · Independent third-party lab result
This COA was tested by an independent third-party lab, LabE. The retatrutide was found to be 98.93% pure via HPLC. The tested quantity was 5.14mg against a 5mg label, a deviation of 2.8%. Endotoxin status is not applicable. The test is recent (3-6 months old).
- no batch ID
- no endotoxin test
- Test date
- 2025-11-17
- Testing lab
- LabE
- Batch / lot
- (no batch ID)
- Quantity
- 5.14mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 5.9
- Label dose
- 5mg
How this result compares
This Retatrutide certificate's tested purity of 98.93% ranks higher than 4% of the 9822 Retatrutide certificates with a purity result we have catalogued (median 99.83%).
Tested 2025-11-17 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 27% of our catalogued Retatrutide certificates.
Zen Peptides has 32 certificates in our corpus, including 11 for Retatrutide at a median tested purity of 99.66%.
Test report image
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