The Facial cleansing brushes remove dirt and makeup, and also gives a gentle exfoliation buffing off rough dead skin cells. It makes the skin softer and keeps the pores clean, and that helps your skin better absorb your skincare product. Use the brush wet with your facial cleansing lotion to remove makeup.
Use very light and gentle circular motions, avoiding the eye and mouth. At first use the brush might feel harsh to the skin but that will ease after a while when the skin gets used to the massage. Start to clean less sensitive areas like the forehead, chin and nose. Rinse the brush in lukewarm water while using so it softens you might also add a bit more facial cleanser.