Designed to cover breakouts while you sleep, COSRX Acne Pimple Master Patches are waterproof spot patches that protect blemishes from bacteria and absorb impurities overnight while encouraging healthy skin hydration. One patch can significantly reduce the appearance of an unwanted blemish so you wake up to happier skin. Please be aware ingredients are subject to change periodically. It is recommended you check the product packaging prior to use for a complete ingredient list.