Professional Spa Brush with a blend of nylon ballpoint and 100% boar hair bristles. The unique structure of the boar hair bristles carries the hairsnatural oils from the scalp to the end of the hair shaft. By coating each strand with a very small amount of sebum,the brush repairs dry hair,reduces frizz and adds lustrous shine,while the stiff nylon ball-point bristles massage the scalp,increase the blood circulation and detangle the hair.