Retatrutide 98.8% Purity — Zen PeptidesCertificate of Analysis · Independent third-party lab result
LabE tested this retatrutide batch (August 2, 2025) at 98.83% purity via HPLC. The tested quantity showed a 6% deviation from the label (10.6mg vs 10mg). Endotoxin status is not applicable, and the test is older (6-12 months). Customers can cross-check on the lab's public verification URL.
- older (6-12 months)
- 6% quantity deviation
- Test date
- 2025-10-23
- Testing lab
- LabE
- Batch / lot
- August 2, 2025
- Quantity
- 10.6mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 7.5
- Label dose
- 10mg
How this result compares
This Retatrutide certificate's tested purity of 98.83% ranks higher than 4% of the 9823 Retatrutide certificates with a purity result we have catalogued (median 99.83%).
Tested 2025-10-23 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 21% 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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