Used about 5 times. The Ionpure Sonic is an ultrasonic ion facial device equipped with three functions: Ultrasonic treatment Ultrasonic treatment + ion cleansing function Ultrasonic treatment + ion treatment function It deeply cleanses by adsorbing dirt remaining in pores after washing your face with ion cleansing, and delivers moisture and firmness to your skin by delivering serum to every corner of your skin with ion treatment. It can be used easily every day, so you can effectively care for your skin by using the Ionpure Sonic for the lotions and serums you usually apply by hand. Operation is easy with just one button, so even those who are using an ion introduction facial device for the first time can use it without hesitation.