HAIR TYPE: Stressed Hair, Damaged Hair / COLLECTION: Resistance / Kérastase Resistance Therapiste Serum transforms heavily damaged and over treated hair, leaving it hydrated, soft, and healthy looking. Ideal for thick, unruly hair, this treatment works as a repairing cream and a binding serum to repair the hair's surface and improve its structure. Containing amino acids and its exclusive FIBRA-KAP™ formula, this serum offers heat protection up to 230°C to prevent split ends, minimises breakage, and helps reduce drying time, so you can experience silky smooth locks.