Brushes are ideal for most skin types, including sensitive and combination skin types. Best for daily cleansing – Resistance to UV Radiation, Anti-microbial, anti-static electricity, negative-ion. Anti-splashing brush skirt design: The peripheral skirt is to reduce water splashing during operation. Recommend clean the brush head regularly with water. We recommend to frequently replace the brush head. - Push the brush head on the fixture on top of VisoClean and turn clockwise until it locks in place. - To remove turn the brush head counter-clockwise and pull it off.