COSRX Acne Pimple Master Patches are hydrocolloid patches that protect and heal acne overnight. These patches absorb impurities, reduce redness, and speed up the healing process for a clearer complexion. Suitable for all skin types, they adhere seamlessly to the skin and are perfect for spot treatments. Apply to clean, dry skin and leave on for several hours or overnight for best results. Travel-friendly and cruelty-free, these patches are a must-have for managing acne effectively and discreetly.