Best if you want to: Cheat a little. Deep cleanse, exfoliate and purify your skin in one easy step with a 3-in-1 mask that leaves skin clean, smooth and balanced. Best for: normal to oily skin How it works: Community Trade blue corn powder gently exfoliates skin, removing dead skin cells, excess oils and dirt. Kaolin clay revitalizes and deeply cleanses, drawing out impurities from the skin. Corn oil moisturizes skin. Which mask is right for me?