Quick acne healing overnight! Hydrocolloid patches that protect wounded or troubled area from getting worse while maintaining humidity of skin to prevent further breakouts. The uniquely developed hydrocolloid material effectively extracts impurities and creates moist environment, which makes the healing process faster. The spot patch acts as a barrier against bacteria, preventing secondary infection. COSRX Acne Pimple Master Patch comes in a resealable pouch and sterilized double packaging to keep it sanitary.