Double reconstructing intensive care serum for severely structurally damaged and brittle hair. Protects against heat up to 230°C. The hair fiber is instantly repaired, strengthened and protected. The hair can be blow-dried twice as fast. The ends of the hair are instantly nourished and repaired. With Fibra-Kap® and plant extract of Myrothamnus Flabelifollius .Application: Apply to washed and towel-dried hair. Work into the lengths and ends of the hair. Blow dry as usual. Do not rinse. It can be used for shaping in damp hair or for the final touch in dry hair.Résistance-Thérapiste - Give your hair a second life.Kérastase Résistance helps to build up the hair fiber from the inside, weakened by external influences, to support its resistance and stability. Hair is less brittle or split ends and gains vitality and resilience.KAPs - The guardians of the inner cohesion of the hair fiber: the valuable and powerful KAPs (Keratin Associated Proteins). They make up 50% of the hair fiber. If the h