Patches to tackle breakouts Improve stubborn blemishes with the COSRX Clear Fit Master Patch; a targeted remedy that reduces and aids the natural healing process of acne, pimples, whiteheads, and blackheads. By breaking down impurities and absorbing excess oil, these patches can eliminate infection and bacteria. Suitable for daytime wear and created to blend seamlessly under makeup, these ultra-thin, discreet patches contain Hydrocolloid, a medical dressing material known for its wound healing properties.