What is microdermabrasion microdermabrasion is a nonchemical noninvasive procedure that uses a spray of microcrystals to remove the outermost layer of dry dead skin cells and reveal younger healthierlooking skin microdermabrasion also encourages the production of a new underlying layer of skin cells with higher levels of collagen and elastin which further improves your skins appearance microdermabrasion is much gentler than dermabrasion dermabrasion is a more intensive procedur