I tried it several years ago....a few treatments. I did not complete it because I did not feel like it was doing much. When the doc told me that he did it and that is what made him look so much younger for his age....it kind of turned me off of it. His skin looked kind of leathery to me. I was not doing it for that any ways. I was having some acne issues and he told me that it would help.
There was no downtime.Costs vary. The doc I went to was on the high end. I don't remember how much it was. It is kind of like sandpapering your skin.
What do you want to do it for?