I only got the occasional zit when I was a teenager, and then my chin and back started breaking out pretty badly when I was in my early 20's. The only thing that helped was ortho cyclene. It started coming back shortly after I started T, though that probably had as much to do with having been off the female hormones for a few months, as with starting the testosterone. I'd say it started getting bad around a month in, and really bad at about 3 months, especially in my beard area. Now, at nearly 5 month, it seems to be getting a little better. I'm not sure, however, how much of that is my body getting used to the T, how much is my shaving technique improving, and how much is the tetracyclene that my doctor prescribed me finally kicking in and working.