... texture,-Reduce skin pore,-Whitening skinUsage:1.Clean your face in common way.2.disinfection of micro-needles with alcohol.3 ... pressure!5.clean the derma roller after use. store it in dry & clean place. Notice:1.DO NOT TOUCH BY CHILDREN2 ... the epidermal within five minutes,create an efficient nutrient delivery system in the epidermis and subcutaneous tissue,and then the skin will ...