Retatrutide 99.1% Purity — Qing Li PeptideCertificate of Analysis · Independent third-party lab result
This COA was tested by an independent third-party lab, LabG. The retatrutide was found to be 99.1% pure via HPLC. However, the tested quantity was significantly lower than the label, showing a -55% deviation (4.5mg tested vs 10mg label). Endotoxin status is not applicable, and the test is recent (3-6 months old).
- quantity deviation (-55%)
- no endotoxin test
- no batch ID
- Test date
- 2025-12-29
- Testing lab
- LabG
- Batch / lot
- (no batch ID)
- Quantity
- 4.5mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 2.8
- Label dose
- 10mg
How this result compares
This Retatrutide certificate's tested purity of 99.10% ranks higher than 5% of the 9821 Retatrutide certificates with a purity result we have catalogued (median 99.83%).
Tested 2025-12-29 by LabG via HPLC + mass quantification + endotoxins. This test is newer than 36% of our catalogued Retatrutide certificates.
Qing Li Peptide has 348 certificates in our corpus, including 119 for Retatrutide at a median tested purity of 99.80%.
Test report image
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