ROGAINE AFTER 12 HOURS REDDIT - DOES IT WORK?

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