I've been losing hair since I was 22. Noticed in October 2010, so nearly 4 years now. I thought I'd be totally bald at this point, but I'm not. It goes through periods of slowing. I still have basically a full head of hair, but not really. I'd say I've lost 30-40% of what I had. I had REALLY thick hair. I used minoxidil last summer and it thickened up a lot, but my skin started to look like trash. It seemed to age about 15 years over the course of a couple months. Minox can deplete collagen, so don't over do it. I stopped using it and my skin started to look normal again. I was using like 2x the recommended amount though.
I'm starting HRT next week I believe, but I still started using minox again a couple weeks ago. I'm hoping that the minox/hrt combo will save what I have and thicken it up some more. If it stays where it is now, especially if it thickens up again, then I should be good with a hairline advancement/transplant to thicken up the crown a bit.
If I feel HRT is progressing well and I feel I can pass well-enough, then in a year I may just have SRS. I plan on waiting 3 years before FFS, BA, or even presenting as female, but I'm starting to think maybe getting SRS early on may be beneficial. I don't think I'll ever have long hair, but I do hope to have a full head of it when I'm about really to start over. I personally think I'll look fine with a medium length paige-boy hair cut, as long as it's all there. Same hair-cut I had as a kid actually, people called me Lydia Deets because I looked like Wynona Ryder back then.
My mothers father had all his hair at 79, literally all his hair, but my dad and 4 of his 5 brothers are/were bald.
Using coconut oil in your hair is good for the scalp, and hair. There have been some studies that show a healthier scalp can lend a hand to hair growth.