Microdermabrasion is the process by which dead skin cells are removed using natural minerals in crystal form (normally Corundum Powder). Because the crystals are abrasive, they exfoliate the skin, rubbing away old tissue and dead cells, and leaving a fresh layer of new skin. This method is of great value as it is easier to control precisely, compared with other treatments such as chemical peels, although that procedure also has its merits. Facials use less abrasive materials and may not provide results as quickly, but are still hugely beneficial and effective (not to mention relaxing!).