1. Soak the bristles in the brush cleaner (can be replaced by lukewarm water with a small amount of shampoo), and then rinse the bristles thoroughly with clean water. 2. Do not wash against the bristles. 3. After cleaning, gently press the bristles with a tissue or cotton pad to release excess water. Do not twist the bristles. 4. Allow the brush to air-dry. Do not use a hair dryer or put it in the sun.