Velvet-like bristle tips are uniquely textured to provide 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 brush head on any CLARISONIC device. Recommended replacement is every three months. Brand: Clarisonic. Style Name: CLARISONIC Acne Cleansing Brush Head. Style Number: 588258.