Skin Effects Acne Cleansing Mask with 0.5 % Salicylic Acid unclogs pores, removes excess oil and impurities and prevents new breakouts without requiring harsh scrubbing like other cleansers. Self-foaming oxygenation gently pulls acne-causing bacteria from pores, deeply purifying and neutralizing blemishes at the source. The gentle oil-free formula won’t irritate acne-prone or sensitive skin. For deeper pore penetration, the mask can be left on for three to five minutes.