How will finasteride impact muscle gains? I have heard so many things. some say it will improve because of the increase in testorone, i have also heard it can decrease because of higher estrogen levels. And have also read because of the higher estrogen you can store fat in the glutens and thigh areas, is this all true?
Propecia was once banned by in the Olympics and some professional sports by the World Anti-Doping Agency, because it supposedly masked the use of steroids and due to similar theories that you point out, but I would doubt that finasteride will produce significant performance or muscle mass gains. Nowadays, Propecia is not banned in the Olympics or any professional sports to my knowledge.
The various info you’ve read online are prime examples of how there is so much disinformation on the Internet.
The first few weeks of finasteride use could lead to increased muscle gains via higher testosterone levels. By blocking the conversion of T to DHT, T levels increase. However, because T can’t convert to DHT, there is more T that is aromatized into estrogen. Long-term, the hypothalamus should sense a higher than natural T level, and lessen endogenous production. T production may or may not return to normal after cessation of finasteride. There are just no guarantees.