Kérastase Resistance Extentioniste Thermique Creme is a heat protector cream designed to seal lengths and split ends. It instantly seals and resurfaces the hair fibre, reducing the breakage by up to 93% after one application. Lightweight smoothing leave-in treatment cream protects your hair from heat up to 230°C to reduce breakage and damage. Hair is strong, resistant and can grow longer while remaining healthy. Creatine R™ complex combined with Taurine, the leave-in treatment goes to new lengths, working to smooth the hair follicles and provide the ultimate in hair endurance.