ROGAINE AFTER 12 HOURS REDDIT - DOES IT WORK?

Yo dudes, so I'm thinking on using Rogaine. Heard some talk about it working after just a couple hours, but that seems kinda crazy, right? Anyone else try this magic potion and actually see results in that time frame? Hit me up with high mch value your experiences. List a few things I'm wondering: Where much Rogaine do you gotta use? Is it impo