Biore pimple patches are gentle on skin but work fast to help heal blemishes in one use. They provide a protective barrier to keep out dirt and prevent picking which can lead to scarring. Hydrocolloid works like a sponge to absorb pus and oil to help shrink pimples overnight. Made with medical grade & plant-based hydrocolloid, these ultra-thin blemish patch spot treatments are great for all skin tones and can be worn day or night. The 15mm diameter provides great coverage for many blemish sizes. HSA/FSA Approved, Distributed by Kao USA Inc.