Intensive reconstructive care hair mask for severely structurally damaged and brittle, strong hair. The hair fiber is repaired in depth, regaining its strength and elasticity. The hair regains resilience and is revitalized. A combination of FIBRA-KAP and a revitalizing plant extract compensates for the missing proteins and activates their synthesis. With Fibra-Kap® and plant extract of Myrothamnus Flabelifollius.Application: Apply to washed and towel-dried hair. Work into the hair lengths and ends, leave for 5 minutes, emulsify and rinse thoroughly.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 hair is dam