Designed for fine to medium hair types, the Kérastase Resistance Strengthening Duo unites a shampoo and conditioner to promote stronger and fuller-looking hair. Set Contents: Resistance Bain Force Architecte Shampoo 250ml A strengthening shampoo formulated to help minimise the look of split ends and breakages. Utilising a Vita-Ciment® Complex, the shampoo effectively lifts away dirt and impurities, while promoting stronger-looking hair. Resistance Ciment Anti-Usure - Vita Ciment Advance 200ml A strengthening conditioner enhanced with proteins and Vita-Topseal protection designed to mimic the outer protective layer of your hair. Ideal for weakened hair, the treatment leaves hair with a stronger, softer appearance.