Yes they can. And I am sure that I am not the only one who feels this way. Have you ever tried stanozolol alone? How about 1-androstenediol? Can you honestly tell me that stanozolol builds more muslce then 1-androstenediol? I am just saying that prohormones have been given a very bad rap by steroid users. They are commonly referred to by steroid users as ineffective or a waste of money and I can say from personal experience that that is not the case. Prohormones should be given the respect that they deserve after all they are really steroids with a just a low conversion rate. I also believe that some prohormones can outdo some steroids.