The SWiCH™ System is based on a physiological princi­ple of inducing the natural repair system of the skin to become active without inducing damage. Activation of the repair system can then affect a restoration of both sun-damaged skin and intrinsic skin aging changes. Unlike most acid-based treatments, the SWiCH™ System is a leave-on system. The active ingredient remains to pro­vide continuous treatment for repair and restoration. Performed as a series of three treatments spaced 4 weeks apart. Perfect for Neck and Decolletage!!