DHEA is used commonly along with a "dry" compound to attenuate the sides of it like low libido etc.
Alone won't do much and I suggest you look into natural supplements like IGF-2, X Factor, etc.. and do some more research on these compounds before taking the jump. How long have you been following a training and regimen for? IMO, you have lots of time on your hands, and really need to be patient. Muscle comes with time and dedication.