For Normal Skin: Recommend to replace your Clarisonic brush head every 3 months. For normal skin, shaving prep, and on the décolleté and body For Deep Pore Cleansing: Recommend to replace your Clarisonic brush head every 3 months. For oily skin, large pores or hard to reach areas of the face, such as around the nose. It is gentle enough for daily use. For Body: Recommend to replace your Clarisonic brush head every 3 months. For the areas of body needing extra care, including the décolleté, hands, arms, elbows and feet. Works with Clarisonic PLUS and PRO models.