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 (Mfg. Sept 24, 2025) showed 99.8% purity via HPLC. However, the tested quantity was 71.7mg against a 60mg label, a significant 19.5% deviation. Endotoxin status is not applicable, and the test is recent (3-6 months old).
- high quantity deviation (+19.5%)
- no endotoxin test
- Test date
- 2026-01-26
- Testing lab
- LabE
- Batch / lot
- Mfg. Sept 24, 2025
- Quantity
- 71.7mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 6.8
- Label dose
- 60mg
How this result compares
This Retatrutide certificate's tested purity of 99.80% ranks higher than 43% of the 9821 Retatrutide certificates with a purity result we have catalogued (median 99.83%).
Tested 2026-01-26 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 44% of our catalogued Retatrutide certificates.
Peptislim has 62 certificates in our corpus, including 26 for Retatrutide at a median tested purity of 99.80%.
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