Kerastase Chronologiste Thermique Regenerant is a refined smoothing leave-in created to protect hair from harmful effects of heat styling tools. It facilitates styling and improves texture by increg protection from heat up to 230C / 450F. Kerastase Thermique Regenerant incorporates latest Chronologiste technology in revitalizing care, and combines powerful key ingredients such as Abyssin, a healing molecule with anti-allergic properties, Vitamin E, a daily shield against degeneration and Hyaluronic Acid that softens and hydrates the hair fiber. You can expect your hair to be left frizz-free, elasticity and delicate luxurious fragrance.