The Function of EMS Roller Skin Scrubber: 1. Ultrasonic +positive ion for deep cleansing Clean skin and pores with ultrasonic high frequency vibration and positive ion. The micro energy produced by ultrasonic vibrations can penetrate into skin to cleanse skin deeply by striking and cleaning out blackheads and acne in the hair follicle rapidly.    2. Ultrasonic +negativie ion for penetrating nutrition When put the reverse side of ultrasonic skin scrubber close to the skin , the ultrasonic's high frequency vibration can atomizate nutrition into tiny molecule , then penetrate into skin and be absorbed easily.   3. EMS:micro current dual roller for lifting and firming face V-line Applying the EMS current to make muscle move again to make the skin full of elasticity. Stimulating subcutis to energize cell and induce skin collagen contraction and rejuvenation would produce new collagen and make the muscle firmer and more youthful.