Macadamia's hot curling brushes are made with premium, first cut boar bristles and have been specifically designed for the purpose of creating healthy, more manageable hair with a fantastic shine. It is well established that boar bristles have incredible healthy benefits for your hair and scalp, distributing your natural hair oil to the hair shaft and sealing the cuticle. The boar is also gentle on the hair, avoiding the harsh damage and breakage caused by plastic bristles. Use in conjunction with Macadamia's oil treatment or spray oil to dramatically intensify the benefits even further. Perfect for longer and thicker hair. Great for creating volume at the roots and designing body, whether straightening or creating curl.