Our Microdart Spot Patches are a rapid-acting treatment, using Microdart Technology to target whiteheads, cystic & stubborn pimples. Microdart Technology: integrated in the patches works by penetrating deeper into the skin layers, to rapidly release the Salicylic Acid for a faster treatment. Salicylic Acid exfoliates, smothes the skin & is known to reduce breakouts by keeping pores clear without affecting the skin's natural barrier.