Used in research settings to quantify levels of oxidized glutathione (GSSG) in biological samples such as cells, tissues, and bodily fluids. Helps assess oxidative stress, which is linked to aging, neurodegenerative diseases, cancer, and inflammatory conditions. Enables scientists to study redox balance within cells and evaluate the effectiveness of antioxidants in experimental models. Commonly applied in biomedical research, pharmacology, and toxicology studies to monitor cellular responses to stress and disease progression.