Masks with Clay purge pores of dirt and oil and tighten them to help reduce their appearance for a smoother surface. Antioxidants help to revitalize skin while exfoliating ingredients help clear out debris. Use these masks anywhere that visible pores are a concern, including the nose, cheeks and chin. Choose between these deep-cleaning and purifying masks that reduce shine, balance oil production, treat existing blemishes and help prevent new ones.