Retatrutide 99.8% Purity — PeptislimCertificate of Analysis · Independent third-party lab result
This COA was tested by an independent third-party lab, LabE. The retatrutide batch (November 5 2025) showed 99.76% purity via HPLC. However, the tested quantity was 4.46mg against a 5mg label, a deviation of -10.8%. Endotoxin status is not applicable, and the test is recent (under 3 months).
- quantity deviation (-10.8%)
- no endotoxin test
- Test date
- 2026-02-20
- Testing lab
- LabE
- Batch / lot
- November 5 2025
- Quantity
- 4.46mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 8.0
- Label dose
- 5mg
How this result compares
This Retatrutide certificate's tested purity of 99.76% ranks higher than 36% of the 9821 Retatrutide certificates with a purity result we have catalogued (median 99.83%).
Tested 2026-02-20 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 54% of our catalogued Retatrutide certificates.
Peptislim has 62 certificates in our corpus, including 26 for Retatrutide at a median tested purity of 99.80%.
Test report image
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