Retatrutide 99.7% Purity — Peptide SciencesCertificate of Analysis · Independent third-party lab result
This COA was tested by an independent third-party lab, LabG. It reports 99.7% purity for Retatrutide via HPLC, with the test being recent (under 3 months). However, the tested quantity was significantly lower than labeled (14.7mg vs 20mg, a -26.5% deviation), and endotoxin status is not applicable. Customers can verify this report on LabG's public URL.
- significant quantity deviation
- no endotoxin test
- Test date
- 2026-02-15
- Testing lab
- LabG
- Batch / lot
- Jan. 2, 2026
- Quantity
- 14.7mg
- Endotoxins
- —
- Assay method
- HPLC + mass quantification + endotoxins
- Test score
- 6.4
- Label dose
- 20mg
How this result compares
This Retatrutide certificate's tested purity of 99.70% ranks higher than 29% of the 9822 Retatrutide certificates with a purity result we have catalogued (median 99.83%).
Tested 2026-02-15 by LabG via HPLC + mass quantification + endotoxins. This test is newer than 51% 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%.
Test report image
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