Never miss a day of cleansing when you have these Clarisonic replacement brushes on hand. Your Clarisonic cleansing brush helps you maintain healthy skin by deeply cleansing your complexion six times better than hands alone. But over time, the bristles of your brush head become worn out and damaged, making your cleansing routine less effective. These bristles can also collect bacteria that cause skin irritation and inflammation. This is why it’s important to replace your Clarisonic brush head every three months. Clarisonic Replacement Brush Head Twin-Pack features two of your favorite brush heads, which are compatible with all of the Clarisonic devices. The only exception is the pedi brush head, which is specially designed to be used on the feet.