I'm 17 years old, been on propecia for exactly 8 months now....My results have been actully pretty good considering i was not expecting regrowth what so ever going into the medication. Overall it has maintained what i have however overall state of hair does look much better because its thicker, so thats real good. I also had significant small thin spots on each side of my temples on the hairline area, that have dencified (is that a word?) to the same texture of the rest of my hair. even though im 8 months into the treatment should these results continue or is it getting to the point where propecia looses its effectiveness? overall i will give my buddy propecia a 8/10