Kérastase Resistance Ciment Anti-Usure Daily Strenthening Conditioner gently strengthens and repairs damaged lengths lacking strength. Using a Vita-Ciment Complex, as well as a blend of nautral Protein & Vita-Seal, this conditioner is designed to regenerate and strengthen hair fibre on the outer hair layers, reducing breakage and split ends, as well as protecting hair from external aggression. Apply the Resistance Daily Strengthening Conditioner 2-3 min, then rinse, to optimise your daily repair routine and leave your hair softer, protected and feeling more natural to touch.