I have been in a dilemma for a while now. Since finasteriade triggered hair-loss in me, I am extremely suspicious of anything that can increase my testosterone level. I have been regularly jogging for over three years now and have become quite skinny as a result. I will like to increase my muscle mass but I am worried about the impact it might have on my hair loss. I am currently a NW2.5 and will like to maintain what I have. I don't plan to become a body builder but want to look strong and in an excellent shape. Commitment to regular weight training is not a problem for me. Despite hating running, I have been able to stick to it for over three years. I didn't stop even in extreme weather. Weight training is something that I actually enjoyed before I quit so it will be really easy for me. So those of you who work out regularly, what's the best way to gain muscle without risking hair loss?