1.Using a boar bristle hairbrush conditions hair naturally Boar bristle brushing is a conditioning treatment.The bristles coat the hair strand with sebum the oil produced by the scalp from the root to the end of the hair shaft. By coating each hair strand with a very, very small amount of sebum, a boar bristle brush repairs dry hair and adds lustrous shine! 2. Boar bristle brushing improves hair texture Having a black boar bristle hair brush; it brings out the best. If you have straight hair, it will add bouncy volume and shine. If you have curly hair, it will condition and slightly loosen the curl. 3. Boar bristle brushing reduces frizz Sebum is the original and most effective anti-frizz treatment. By using a boar bristle brush to lubricate each hair strand with sebum, you will notice a significant decrease in frizz! 4.