This independent HPLC lab test with UV detection coupled with mass spectrometry confirms Glutathione 1500mg from IonPeptide at 99.974% purity. The analysis was conducted by Freedom Diagnostics Testing on November 2, 2025.
Glutathione is a tripeptide compound researched for its role in antioxidant defense, cellular detoxification, and oxidative stress reduction. A purity level of 99.974% indicates minimal contamination and high-grade synthesis, with the sample appearing as white lyophilized powder.
The full certificate of analysis is available for download on this page.

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