The Good
Fast and stable glow signal
The Bad
Measures reduced GSH and not GSSG/ratio out of the box
The Bottom Line
GSH-Glo is a fast, sensitive, plate-based luminescence assay that quantifies reduced glutathione in under an hour without HPLC or fluorescence interference, making it well suited to cell, tissue, and blood oxidative-stress work. It reports reduced GSH rather than GSSG or a redox ratio, and medium usually has to come off, but for routine toxicology or screening that trade-off is worth it. I would recommend it.