Clarisonic's patent pending Deep Pore Cleansing brush head is designed with a unique gradation of bristle firmness and dual-action movement, making it optimal for cleansing oily skin, skin with large pores or those looking to target hard to reach and uneven areas of the face, like the crevasses around the nose. Safe and gentle for use every day, two times per day. Reveal clearer, refreshed, softer, smoother skin. Clarisonic® brush heads are made from a non-porous, soft elastomeric material, resistant to bacterial attachment. All brush heads are precision-designed to oscillate bi-directionally at a sonic frequency of more than 300 movements per second and should be replaced every 3 months. Made in USA.