Neostrata Glycolic Microdermabrasion Polish This easy-to-use skin resurfacing treatment with 10% Glycolic Acid and professional grade alumina crystals is formulated to immediately revitalise skin for a polished, smooth and radiant appearance. The dual-action physical and chemical exfoliation rapidly removes skin’s surface cells to help clarify and clear impurities from pores. This two-in-one exfoliator does not feel harsh on skin.