What's the most effective and safest treatment?

[Anon111]

I've just started researching treatments and need some direction. I've heard good things about something called Profollica, and mixed things about Rogaine. There seems like a hundred different products, I have no idea where to start.

I'm looking for halting hair loss as well as potential regrowth. What do you guys recommend? I'm extremely uninformed at the moment so if you could go into a bit of detail it would be much appreciated.