Oxygen Labs EpistaneJust to give you an idea of how Epistane works, it basically binds to androgen receptors that are located in muscle stem cells and skeletal muscle cells. When this happens, these androgen receptors send messages to cells to boost their retention of nitrogen and protein synthesis, which improve strength and muscle mass. Whats even more interesting is Epistane is a c17 alpha alkylated analog of epitiostane, which has been proven in several clinical