I like Renate's answer, the green thumb approach to growing hair.. if it's dead, pouring water, or well, minoxidil in this case, isn't going to help much.
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However, if you are in your first decade of hair loss, you might be surprised what comes back. That's where I was at, a huge M-shaped, very male receding hairline, and losing the battle quickly starting around age 30. However, in my experience, propecia and anti-androgens filled in much of it when I started them at 38, and a scalp advance took care of most of the rest of it. I do still have thin hair, but there is hair! There is hope!
And also, the 2nd part of your question, in my experience, HRT has reduced all of my body hair by at least 70%, and turned almost all of the remaining body hair light colored.. I was prepared to do laser on my chest and back, and 2 years of HRT has made this unnecessary, yay!
Best of Luck antarcticsake! *huggs*,
Melan