Retatrutide 99.8% Purity — Qing Li PeptideCertificate of Analysis · Independent third-party lab result
This COA was tested by LabG, an independent third-party lab. The retatrutide batch (Dec 2, 2025) showed 99.8% purity via HPLC. The tested quantity was 21.2mg, a 6% deviation from the 20mg label. Endotoxin status is not available. The test is recent (3-6 months old) and customers can verify it on the lab's public URL.
- no endotoxin test
- quantity deviation (6%)
- Test date
- 2026-01-26
- Testing lab
- LabG
- Batch / lot
- Dec 2, 2025
- Quantity
- 21.2mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 9.4
- Label dose
- 20mg
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 LabG via HPLC + mass quantification + endotoxins. This test is newer than 44% 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
Finnrick
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