Its not legally available through licensed pharmacies
There are eight types of GPX family in mammals (GPX1, GPX2, GPX3, GPX4, GPX5, GPX6, GPX7, GPX8), of which GPX1-4 and GPX6 of mammals are considered to be selenoproteins containing selenium, which have antioxidant functions, and GPX6 is only expressed in the human body ( In mammals, GPX works with superoxide dismutase and catalase to form an enzymatic antioxidant system that reduces reactive oxygen species (ROS) and limits their toxicity
But what is this molecule called glutathione, and why are many now seeking the IV route to treat it
For broader context on peptides in regenerative science, see our peptides for joint and tendon repair guide, which catalogs candidates under active investigation