Hey guys

I'm an ectomorph and I've gained about 4 stone in 8 months of serious training. The problem is I've been training just over two years and not much progress has been made despite using personal trainers also.

I just want to kick my body into gear for 6 months and gain muscle mass, at the same time cutting fat.

My question is, my hair is starting to go thin and almost every steroid I've read about will make it go faster. Has anyone tried anything that doesn't affect losing your hair?