COSRX Clear Fit Master Patch is an ultra-thin hydrocolloid acne patch designed for daytime use. With its matte, gradient finish, the patch is nearly invisible on skin and can be worn under makeup. Each pack contains 18 patches that effectively extract impurities while protecting troubled areas. Key features: • Ultra-thin, gradient design with matte finish • Nearly invisible under makeup • Made with hydrocolloid material • Creates protective barrier against bacteria • Reduces inflammation and absorbs impurities • Fast-acting treatment • Suitable for daytime wear The patches should be applied to clean, dry skin before any skincare products or makeup. The hydrocolloid material creates an optimal moist environment for faster healing while preventing secondary infections. The patches are made with ingredients including petroleum resin, cellulose gum, styrene isoprene styrene block copolymer, polyurethane film, polyisobutylene, liquid paraffin, and tetrakis methane.