Well I thought it barely had any effect on me, but after I quit after being on the drug for 18 months I am pretty confident it did help my hair a bit. As it seems to be getting thinner now (after 2+ weeks).
Then again I discovered 2 things that keep me from taking propecia again:
- my penis has gotten bigger (seriously lol, maybe it shrunk slowly while on propecia? edit: in its flaccid state that is)
- my libido has gone up, wasn't really bad while on propecia but still
But as soon as people are going to tell me I am going bald I'll probably shave my head and wait for a real cure for baldness.