Keratin Infused Plates + Heat Sensor Ceramic Heat sensor 450°F high heat Turbo boost to highest setting Swivel cord 30 second instant heat Auto shutoff (60 minute) Digital control Strengthen your hair while you style! The unique Remington® Style Therapy: Keratin Therapy 1" Flat Iron features keratin protein infused plates that provide essential vitamins while you straighten, keeping your hair healthy and strong. Don't fret over too much heat. The advanced, built-in heat sensor uses cutting edge technology to adjust the temperature to your own personalized setting, protecting your hair from overexposure. The Keratin Therapy Straightener offers keratin-infused plates that release keratin conditioning formula, a naturally occurring protein, onto your hair during styling. This keratin formula plus heat sensor gives you two times stronger hair, with 50 percent less breakage and splitting. When the flat iron heats up, the solid keratin and conditioner formula becomes semi-liquid to coat your hair evenly without leaving any residue.