I am having an old scar 20 years ago, it is rose, depressed, and irrugular. I made a 5 laser sessions, before the laser i made a filler and mesotherapy but it doesnot worl becouse it makes the nasolabial line disappears and makes a difference between the right and left cheek, i read about the plasmage and the stemcell, i donot know what is the best treatment for it, thank you