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Thanks, I skimmed too quickly :-). Time to do further research, you know, for a friend.

Best of luck for your friend. I've first hand witnessed FUS in neurological applications and believe it is a game-changer.

Finasteride (and other DHT inhibitors) is an option also worth looking into.

Yes, but it also has some significant side effects too.

Pro: hair growth. Con: decimated libido.