The Clarisonic Mia 2 Facial Sonic Cleansing System is a facial brush that uses sonic pulses to cleanse the skin of dirt, oil, and makeup. It is gentle enough to use twice daily and can reduce dry skin patches, oily areas, and blemishes. The brush has two speeds and a pulsing T-Timer for an efficient and even 60 second cleanse. It is tested extensively to ensure that it is gentle to use on all skin types, even sensitive. Used, still works just like it did when I first bought it. Brush heads sold separately, see other listing.