The first balm-in-shampoo from Kérastase, designed for hair with an erosion level of 3-4. Kérastase Resistance Bain Thérapiste Balm-in-Shampoo helps renew the appearance of fibre quality. Featuring new packaging specifically designed for the jelly-like texture, this shampoo envelopes the hair fibre during cleansing, reducing friction and protecting it from further damage. Enriched with a breakthrough formula featuring FIBRA-KAP™ and Sève de Résurrection, it transforms limp, lifeless hair. The innovative FIBRA-KAP™ formula delivers keratin associated proteins (KAPs) to repair hair fibres and the internal architecture for healthy-looking, hydrated locks. It renews split ends and brittle strands by enveloping hair, increasing strength and protecting from further damage.