Nexcare Blemish Clear Covers work on a variety of skin types and are a drug-free, non-drying way to absorb oil from clogged pores. Nexcare Blemish Clear Cover is made of a special material called hydrocolloid that acts like a sponge to absorb the oily secretion, fluid, or pus from a pimple. The patch is waterproof yet breathable, and it acts as a layer of protection over a pimple to reduce hand contact and prevent infection. The patented easy peel structure removes the peel without touching the adhesive surface, so it can be used more hygienically without damaging the adhesive surface.Colour changes from clear to white when patch is working Helps reduce the urge to touch/pick at the blemish Transparent and thin cover ideal for daytime use Helps your skin to heal acne and blemish quickly and Helps to cover redness.