The SmartAppGuided Micro Needle Face and Body Roller 9 in is your new partner for your skin care. After just a few seconds of microneedling, the cell stimulation system helps stimulate the skins healing processes, making it rejuvenate, firmer and smoother. This all happens through the combination of our proprietary technologies DeepDerma skin renewal and tightening technology and SmartSonic pulsation technology support your skins natural regeneration processes.