My bad, It was hyaluronic Acid, can't remember a single name. I was told that around 6 sessions would be enough to kill most of it, although of course, they don't know the purpose behind doing this (the only other person getting full face treatment is a flight attendant). The truth is that I did not even have a real beard to start with, just loose hairs that would not cover a single part of my face. One of the few things I lucked out with, I almost don't even have body hair... Anyways, really dark sparse hair over pale skin, so it seems to work quite well.
I took photos of the burns for four weeks and showed to them before starting the treatment, so they recalibrated the machine before the second attack. There may be a few of them in a previous thread around here. They were seen by a doctor and two dermathologist. Two said "folliculitis" and the other "it will take a long time until they fully heal". Much better results on the second session in terms of recovery, though.