Natura Siberica Polar White Birch Purifying & Exfoliating Pads 20 Pcs Try these purifying and exfoliating discs - a unique exfoliating treatment designed to clear skin, prevent skin inflammation and minimize pores, while preventing the buildup of dirt and oil that leads to breakouts. Lactic Acid for removing dead skin cells treating blackheads and surface blemishes. Niacinamide strengthens the skin’s moisture barrier, whilst regulating skin balance. Vitamin C helps to enhance your skin’s natural defense system, speeding up the repair process.