Dr. Mozersky discovered Dermapen at a conference in early 2011, and when he saw it he immediately thought it could be used to deliver platelet-rich plasma (PRP), which he had trouble delivering to his patients in a tolerable manner despite promising outcomes. He does not claim to have invented the technique, which he basically describes as follows: Chemically-activated PRP is painted onto the skin. Dermapen creates patterns of controlled injury that heal quickly but drive the PRP into the skin to promote improved penetration of the various growth factors and other beneficial components. He recommends it for most patients; in his experience it seems to decrease the number of treatments needed and also improves the overall result (as well as patient satisfaction). He supposes one could skip PRP activation or paint PRP on after creating the wound zones but has not studied any of these techniques in a structured clinical trial.