Saturate parched hair with Kerastase Nutritive Masque Thermo-Reactive Intensive Nutrition. This deeply intensive hydrating treatment product infuses strands with moisture fortified with Kerastase s exclusive thermo-reactive formula to lock moisture deep inside the hair cuticle. Kerastase masque 16.9 oz features a patented nourishing agents to work on most sensitized areas of hair fiber. The rich masque forms a shielding film all around hair fiber to prevent dehydration leaving hair softer thicker and healthier. The hair masque rinses easily out for effortless use.