microdermabrasion, a dermatologic procedure in which all or part of the stratum corneum is removed by light abrasion, used to improve the appearance of sun-damaged skin, treat hyperpigmentation, and reduce or remove scars. It is more superficial than ordinary dermabrasion, does not require anesthesia, and can be performed in less than an hour. The person may resume ordinary daily activities immediately afterward. Microdermabrasion works best for superficial lesions such as fine lines and age spots; deeper lesions require other treatments.
