Minoxidil
"I am getting incredible results at months 5-6. I always had pretty thick hair, but in my late 40s and early 50s (where I am now) it started to thin and I was getting a small vertex bald spot. I use the foam in the thin can, either CVS or Rogaine, doesn't matter. I part my hair down the middle and massage it in along the part twice a day and also a couple other spots. The bald spot is GONE and my scalp is just about invisible again. My hair looks great! Just like it did in my mid 40s, and it's been getting thicker every day lately so I have no idea where this will end. :)"