Detoxify your skin purifying Arbutin Charcoal Face Mask. The charcoal face mask works effectively to help remove facial impurities, toxins, and blemishes while reducing the size of your pores and firming up your face. Arbutin is natural double action whitening agent that can lighten skin and prevents formation of melanin. It protects the skin against damage caused by free radicals to prevent liver spots and freckles, to treat sunburn marks and to regulate melanogenesis.