When discussing treatment, I told my onco that losing my hair wouldn’t be a problem, but I was hoping my eyebrows and eyelashes didn’t go. I have dark hair, and skin that goes between a few different shades and undertones depending on access to sunlight, so for me the contrast between light and dark is normal and thus ‘preferable’. I had a roommate once who was of Scandinavian heritage, a blonde even as an adult, and in the morning there was no face there. She had to draw in eyebrows, put on mascara and liner, etc. before there was any contrast in her face. Some people find that beautiful, of course, and I can see the aesthetics (Tilda Swinton comes to mind) but it wouldn’t feel normal to see it on my own face. And sure enough, I lost all body hair, and it really was the loss of the eyebrows specifically that bothered me.
In my case, they only grew back about 50%, and lighter, and the same with my eyelashes, and I really think that does not work well for my coloring and facial structure at all. I’m no Tilda! But my hair came back basically the same as it ever was.
Body hair also grew back at only about 50%, very fine, and virtually blonde, so that was a nice silver lining to the cloud!