I found a really long thread on a beard website full of pictures of people with patchy or thin beards who had the patience/willpower to gro...

How Long Does Minoxidil Take to Work? While minoxidil starts working immediately, you won't actually see any noticeable changes for three to six months, with the best visual results after 12 months. You do need to persist with continuous use over the entire time.
In this publication titled patchy, I have provided a complete image from start to finish ,Please look below