Exfoliates and refines to renew skin’s surface to reveal brighter, healthier-looking skin. The micro-crystals remove dry dead skin cells, reduce the appearance of surface imperfections and clear the way for maximum penetration of treatment products to follow. Ideal for a use in-between professional in-office peels and washes. Physical Surface Peeling: The brisk removal of dead surface cells via rubbing and sloughing. [Physical exfoliates remove dead surface cells via physically sloughing ingredients, such as micro-fine crystals, against the upper layers of the skin.]