This facial is designed for someone with more troubled skin. Its principal purpose is to exfoliate. Exfoliation is the process of sloughing off dead skin cells to reveal a new layer of skin. Microdermabrasion does not make the skin red or streaky. It also helps treat rosacea, a reddening condition of the skin, acne and the effects of aging. There are several types of Microdermabrasion systems. A Microderm Facial is where granules in a cream base are hand massaged on the skin. A machine Microdermabrasion may be done with aluminum oxide, sodium bicarbonate or vitamin c crystals. There also is a diamond tip microderm which does not use crystals.