Some By Mi Miracle Clear Spot Patch is a sheer hydrocolloid patch designed to absorb oil and pore impurities while protecting blemishes. The virtually invisible patches can be worn alone or under makeup, providing intensive coverage and preventing skin infection with their natural thin layer. The pack contains 18 patches in two sizes (10mm and 12mm). The patches are designed to swell up as they absorb exudate from blemishes and will sink back down once the area is healed. For best results, apply to clean, dry skin and replace patch as needed. Not recommended for use on deep scratches or infected wounds. Discontinue use if any irritation occurs.