Used in research settings to measure levels of reduced glutathione (GSH) in biological samples such as cells, tissues, and bodily fluids. This assay helps assess oxidative stress and antioxidant capacity in studies related to neurodegenerative diseases, liver disorders, cancer, and aging. The kit enables quantitative analysis, supporting investigations into cellular redox status and the effects of drugs, toxins, or therapeutic interventions on glutathione levels. Widely applied in biomedical research and preclinical studies for its sensitivity and specificity in detecting GSH.