Different types of exfoliation

There are different forms of exfoliation: mechanical and chemical.
Mechanical exfoliation uses a tool such as microdermabrasion or product with abrasive texture to remove the outer corneocytes (dead skin cells).
Chemical exfoliation utilizes hydroxy acids, such as glycolic, lactic and malic acids, to dissolve the bonds that hold skin cells together allowing them to shed. Fruit enzymes such as papain and bromelain are another form of chemical exfoliation and work by dissolving protein (keratin) causing a softening effect to the skin and sloughing off dead skin cells.
Regular exfoliation speeds up your skin's natural renewal process, helps to keep acne under control, diminishes uneven skin tone and discoloration, softens fine lines and wrinkles and leaves skin soft and glowing.