I was 19 when I started noticing my hair getting kind of thin. By 21, I had a bit of a bald spot situation on the crown. Hopped on finasteride. It's 2.5 years later, I'm 24, and here are the results of finasteride. The before picture had really long hair. The second picture taken today is a few days after a super short haircut. For both photos I found the most severe lighting I could find, so they're pretty honest representations.