I got it from my primary care physician. I stopped taking it but unfortunately the damage it did was permanent. So if you decide to take it, know that you're playing with fire.

It's used in low doses to prevent male pattern baldness, and in high doses for MTF transitioning. My understanding is that it tricks your scalp into thinking you're female, so your hair doesn't fall out. If you take a lot of it, it will trick your whole body into thinking you're female.