If your L Ange straightener brush is clogged with hair, there are a few easy steps you can take to clean it. First, remove any excess hair with a brush. Second, fill a bowl with warm water and place the L Ange straightener brush in it. Third, use a toothbrush to scrub the bristles of the brush against the side of the bowl. Finally, rinse the brush under running water and dry it off. ..