Obagi Professional-C Microdermabrasion Polish + Mask is a revitalizing treatment that exfoliates the skin, boosts skin radiance and smooths texture. Key ingredients include Ultrafine plant-based crystals provide gentle physical exfoliation and work to prep the skin for better absorption of Vitamin C and primes the skin for the mask treatment. 30% L-ascorbic Acid helps to protect skin against free radical damage and promotes a healthy glow. Poly-hydroxy Acids also help to gently exfoliate the skin while Soybean and Sea Berry Fruit Oil hydrate and soothe. Over time, skin is rejuvenated, smoother and has a more radiant, clear complexion. Recommended for use on dull, aging skin with a high tolerance for Vitamin C.