This independent HPLC-MS lab test confirms Glutathione 500mg from Midway Gray at 99.967% purity. The analysis was conducted by Freedom Diagnostics Testing on December 8, 2025.
Glutathione is a tripeptide antioxidant researched for its role in cellular detoxification, oxidative stress management, and immune function support. A purity level of 99.967% indicates minimal contamination and high-grade synthesis.
The full certificate of analysis is available for download on this page.
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