The way you posed this question suggests you are very new to this game. Well, your options are propecia or revivogen to try and halt hairloss. If you want to regrow then you will likely need minoxidil 5%. However, you may achieve regrowth on propecia alone (which comes in pills so you don't need to mess with the hair) but it is likely to be miimal because it in itself is not a growth stimulant. Be warned, propecia may induce side effects but are very rare. Although, on this forum the rate of people suffering from these side effects seems a lot higher than the 2% suggested by the makers, Merck.