Compatible with your Sonic System Purifying Cleansing Brush, Clinique\'s Sonic System Purifying Cleansing Brush Head gets to work on skin, performing a deep, targeted cleanse with two types of bristles. Developed by dermatologists, the waterproof brush offers targeted cleansing, expertly unclogging pores, banishing impurities from hard to reach areas and smoothing the skin\'s surface. It effectively lifts away makeup, pollution and sunscreens and its tilted head reaches the hairline, forehead, nose and chin easily. Used in conjunction with your Sonic Cleansing Brush, experience skin-energising, sonic action. - K.N.