Retatrutide 100.0% Purity — Peptide SciencesCertificate of Analysis · Independent third-party lab result
This COA was tested by an independent third-party lab, LabE. The retatrutide batch (Rt20) showed 99.95% purity via HPLC and mass quantification. The tested quantity was 18.7mg against a 20mg label, a deviation of -6.5%. Endotoxin status is not applicable for this test. The test is older (6-12 months).
- older (6-12 months)
- no endotoxin test
- quantity deviation (-6.5%)
- Test date
- 2025-09-30
- Testing lab
- LabE
- Batch / lot
- Rt20
- Quantity
- 18.7mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 9.5
- Label dose
- 20mg
How this result compares
This Retatrutide certificate's tested purity of 99.95% ranks higher than 91% of the 9823 Retatrutide certificates with a purity result we have catalogued (median 99.83%).
Tested 2025-09-30 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 17% of our catalogued Retatrutide certificates.
Peptide Sciences has 273 certificates in our corpus, including 85 for Retatrutide at a median tested purity of 99.62%.
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