Can Propecia Regrow Hair Behind the Hairline?

I know Propecia won’t work to regrow a hairline but can it help regrow hair behind a hairline like 1cm behind it? Since my hairline is still intact but behind it is where the drama lies.

It can, but each person will react slightly different to medication, so regrowing hair there might be rare. It has a better chance of maintaining hair that is left, though regrowth isn’t completely out of the question. The younger you are and the shorter time since the hair is showing the impact of balding and thinning, the better the chance of reversal.