Glutathione Peroxidase Activity Test

The glutathione peroxidase (GPx) test measures the activity of this vital intracellular enzyme. GPx acts as one of the body's key antioxidant enzymes, converting hydrogen peroxide and harmful oxidized lipids into water and harmless alcohols using reduced glutathione (GSH) as an electron donor. It protects cells from oxidative damage that contributes to aging and various diseases.