Dry brushing is a way to gently exfoliate and helps to scrub off excess dry skin. Benefits of dry brushing include helping to firm up skin, getting rid of dry skin flakes and helping to increase the circulation of your blood flow, adding glow to your skin. The soft brush is made from bamboo and natural boar bristles. The firm brush is made from FSC certified beechwood from Germany and natural sisal bristles and is more abrasive.