So to start I am not saying donating blood affects hair production on your head or the ability to maintain it. I donate whenever I can but I am also loosing my hear. I am a young guy 27 but could be forced to shave my head by the time I am 35 (not that I wouldn't look good that way). I wanted to post this as a conversation starter would you take something like Propecia or proscar (Finasteride) to regain your hair but you couldn't donate blood as Finasteride is a restricted medication. Rogaine is not that effective plus its very expensive where as Finasteride is much cheaper. Thoughts?