Microdermabrasion reduces signs of sun damage, scars, acne, and keratosis pilaris. It is a quick procedure that removes the outer layer of dead skin, revealing the fresh layer underneath. There is no down time, and any potential discomfort usually subsides within 10 to 30 minutes. While sun exposure should be limited after the procedure, patients should be able to enjoy the sun the next day (as long as they apply sunscreen).