Epistan, epistane or "epi", is a derivative of dihydrotestosterone (DHT) and has the same functions as epitiostanol. It is taken orally. It binds to androgen receptors in muscle stem cells and skeletal muscle cells. In this case, these androgen receptors send messages to the cells to increase nitrogen retention and protein synthesis. What will improve strength and muscle strength. Epistan is a c17-alpha-alkyne analog of epitoxan (in a number of clinical studies it has been confirmed that it has anti-estrogenic effects and can aromatize). In addition, it is in no case an antiaromatic inhibitor or AI. It is important to remember that this prohormone is not recommended for women and their bodybuilding purposes.