Amika Polished Perfection Straightening Brushproduct details what is polished perfection? effortlessly achieve sleek style. fusing the convenience of a brush and the performance of a styler, polished perfection instantly creates smooth hair in a single stroke. why it's special double negative ion technology the maximum in negative ions resulting in shiny, smooth, frizz free results with zero static. ceramic bristles with nylon cool tips emit far infrared heat that instantly penetrates the cortex