Answer: exfoliate

AnswerCrossword Clue
EXFOLIATEUse a chemical peel
EXFOLIATEUse pumice on, perhaps
exfoliate(of a material) Come apart or be shed from a surface in scales or layers
exfoliateShed (material) in scales or layers
exfoliateto separate and come off in scales or laminae, as pieces of carious bone or of bark
exfoliateWash or rub (a part of the body) with a granular substance to remove dead cells from the surface of the skin
exfoliateCause to do this