Retatrutide 99.9% Purity — Zlz PeptideCertificate of Analysis · Independent third-party lab result
LabE tested this retatrutide batch (15 Dec 2025) at 99.9% purity via HPLC. Quantity matched the label within 1.5%, and the test is recent (under 3 months). Endotoxin status is not applicable for this test type. Customers can cross-check on the lab's public verification URL.
- no endotoxin test
- Test date
- 2026-03-06
- Testing lab
- LabE
- Batch / lot
- 15 Dec 2025
- Quantity
- 19.7mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 10.0
- Label dose
- 20mg
How this result compares
This Retatrutide certificate's tested purity of 99.90% ranks higher than 70% of the 9821 Retatrutide certificates with a purity result we have catalogued (median 99.83%).
Tested 2026-03-06 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 59% of our catalogued Retatrutide certificates.
Zlz Peptide has 274 certificates in our corpus, including 100 for Retatrutide at a median tested purity of 99.84%.
Test report image
Finnrick
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