For seriously damaged hair, the rich Kérastase Resistance Therepiste Serum 30ml Duo nourishes overly processed strands and restores their luminosity and resilience. Designed as a repairing cream and serum dual treatment, it is ideal for split ends and limp, brittle fibres, keeping them hydrated and healthy. Taming even the thickest and unruliest of locks, this FIBRA-KAP enriched formula serves as heat protection, making the hair resistant to heat up to 230 degrees. Additionally, it also makes the strands less prone to breakage and drying. Packed with nutrients, it locks the moisture in and makes the hair soft and silky. With extra amino acids, this luxurious treatment makes your locks shinier and more voluminous. Applied to washed hair, either damp or dry, it penetrates the cuticle and restores the gloss from the inside out. The serum improves fibres\' structure, making it more elastic and flexible. This rich treatment also helps reduce blow-drying time, as well as make styling much easier. Only apply this product to mid-lengths and ends.