First noticed my impending hair loss around 6 years ago at age 22 when someone commented on a little tiny bald spot at my vertex and my obviously-receded hairline that I had somehow been blind to. Been researching ways to fix it ever since.
Been on Propecia on and off for several years; it has helped stave off the thinning in the frontal scalp area that started in late 2008. Used Dutasteride briefly, but read about some side-effects, and decided to just stick with good ol' Finasteride.
Won't try Rogaine, since I get the distinctive impression that it is notorious for making your hair fall out first, and then only sometimes making some hair grow back. I don't want to risk that; I'll just stick with Propecia and good hair transplants.
I'm convinced that you get what you pay for, and that (most) pills and stupid goop/foam that you put on your head are just as useless as that stupid cellulite-reducing cream crap they try to market to gullible fat women and aren't going to fix anything. So I saved up some cash and got a moderate (1,775 grafts) hair transplant with Dr. Steven Gabel (December 30, 2010), complete with hairline reinforcement (via FUT), and thickening of the somewhat-thinned areas, namely the 2-inch-diameter circle of super-thinness at my vertex and the inch-wide stripe of thinning right down the center of my scalp.
[UPDATE] - I've gone and done it again, this time with 1,554 FUT grafts all devoted to my frontal hairline; I think the frontal third of my head is good to go, now to just keep an eye on that vertex/crown area, which doesn't seem to be doing too bad right now. I went to Dr. Gabel again, and am so far having a great result again. Pics are in my blog, go check'em out!