... avoid bad feelings caused by skin dryness.3, click "Start",the machine start working.4, The beauticians ... volume according to the consistency of product 5 click "Start", press control button of e-inject head ... and the roller will bring it out.5 Click "Start", beauticians hold the colloidal inject head ... working time (about 20 minutes each part).4 Click "Start", beauticians hold the micro-electric wall ...