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 short amount of hours, but that seems kinda wild, right? Anyone else try this hair growth serum and actually see results in that time frame? Hit me up with your thoughts. Here's a few things I'm wondering: How much Rogaine do you gotta use? Should apply it t