COSRX Clear Fit Master Patch is an ultra-thin hydrocolloid acne patch designed for daytime use. Each pack contains 18 patches that provide natural and invisible coverage while effectively treating blemishes by extracting impurities and creating a protective barrier. The patches are made with Somadermspot-S hydrocolloid material and come in a 10mm size. They feature a matte, gradient finish that makes them nearly undetectable on the skin and can be worn under makeup. The patches are packaged in a resealable pouch to maintain hygiene. For best results, apply to clean, dry skin before other skincare products.