Proraso Professional Shaving Brush The Proraso professional brush is made with natural bristles. Their length and stiffness have been specifically designed to optimally lather the soap and massage the beard with the right balance of gentleness and vigor. How to use Before use, wet the brush with warm water: the bristles swell and hold the soap better. Using circular motions, work the soap into the bowl or onto your face to prepare your skin and hair for shaving. When you're finished using the brush, rinse it under running water, then shake and squeeze the bristles to remove any remaining water. Store it with the bristles facing down. The brush bristles are natural, and a slight odor may be noticeable during the first few uses, but this will disappear after a few uses. Made with natural bristles. Materials Boar Bristles