Retatrutide 99.8% Purity — Zen PeptidesCertificate of Analysis · Independent third-party lab result
This COA was tested by an independent third-party lab, LabE. It shows Retatrutide at 99.81% purity via HPLC and mass quantification. The tested quantity was 9.56mg against a 10mg label, a deviation of -4.4%. Endotoxin status is not applicable, and the test is recent (3-6 months old).
- no endotoxin test
- no batch ID
- Test date
- 2025-11-17
- Testing lab
- LabE
- Batch / lot
- (no batch ID)
- Quantity
- 9.56mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 7.8
- Label dose
- 10mg
How this result compares
This Retatrutide certificate's tested purity of 99.81% ranks higher than 46% of the 9821 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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