Hairline thinning. Just began, can I stop it?

[winteriscoming]

Hey all,
I'm 21 years old and I just noticed a bit of thinning. I've been lurking for a while and read it's best to catch it early as opposed to letting it go on. Well,hopefully I'm not too late.. What do you recommend?

 

[Erick.]

Most cases of male pattern baldness can be stopped by using finasteride, especially when you catch it early.