Abstract: A rotating hair brush has several dividers between some of the rows of bristles. The dividers prevent hair from being tangled in the bristles as the brush rotates. The dividers also help smooth the hair and absorb and transfer back to the hair heat from a blow dryer. The dividers may be of many different shapes and may extend longitudinally or curve along the brush. Structure allows the brush to be removed from the handle that contains the motor and battery powering the brush. The brush also may have a guide covering part of the bristles.