DOES ROGAINE WORK AFTER 12 HOURS REDDIT

Yo dudes, so mch blood test definition I'm hopping on using Rogaine. Heard some rumors about it working after just a couple hours, but that seems kinda wild, right? Anyone else try this magic potion and actually see something in that time frame? Hit me up with your experiences. Here's a few things I'm curious: Where much Rogaine do you gotta us