Its ceramic-coated bristles glide smoothly, detangling and straightening in one gentle motion - perfect for those who avoid harsh flat iron tools. ???? Repair & Nourish Hair with Every Stroke: LANDOT hair straightener brush features exclusive Keratin & Argan Oil Coated Bristles that gently infuse hair with nourishing care while you straighten, helping to reduce dryness and improve hair texture from the very first use.