Velvet-like bristle tips are uniquely textured to provide an ultra-gentle cleansing action on sensitive, compromised skin. Extra-plush bristle gradation delivers concentrated flushing of the pores and is safe for use on acne-prone skin.How to use: Fit on any CLARISONIC device. Replace every three months. Brand: Clarisonic. Style Name: CLARISONIC Acne Cleansing Brush Heads (2-Pack). Style Number: 588263.