This system works by blasting minute crystals through a hand piece onto the skin's surface. The crystals refine the skin, leaving it smooth and more youthful, whilst treating a whole host of other skin ailments. Microdermabrasion is incredibly successful in treating skin ailments and removing dead skin. This is not as invasive as the dermabrasion used in the medical industry. With the MDA, therapists are now able to bridge the gap between the beauty salons and the dermatologist clinics.