DOES ROGAINE WORK AFTER 12 HOURS REDDIT

Yo dudes, so I'm trying on using Rogaine. Heard some talk about it helping after just short amount of hours, but that seems kinda sketchy, right? Anyone else try this hair growth serum and actually see changes in that time frame? Hit me up with your thoughts. List a few things I'm curious: Where much Rogaine do you gotta use? Should apply it to