Microdermabrasion is a skin-freshening technique that helps repair facial skin that takes a beating from the sun and the effects of aging. The aesthetician uses a device like a fine sandblaster to spray tiny crystals across the face, mixing gentle abrasion with suction to remove the dead, outer layer of skin. Like dermabrasion, microdermabrasion involves removing some of the upper skin layers. Microdermabrasion, however, doesn't go as deep. Another major difference is that microdermabrasion uses crystals to remove the skin, while dermabrasion uses a rotating wheel or wire brush.
As with other skin rejuvenation techniques, more than one treatment may be needed to reduce or remove fine wrinkles and unwanted pigmentation.