Set includes three Redken Acidic Bonding Concentrate essentials: Shampoo 300ml, Conditioner 300ml and 24/7 Night & Day Serum 100ml. The shampoo and conditioner feature Citric Acid and an acidic pH to help protect weak bonds, reduce breakage and guard against colour fade while improving strength and resiliency after bleaching or colouring. The lightweight leave-in serum contains Polyglutamic Acid and Squalane to magnetise to the hair, help prevent breakage from daily and nightly friction and improve softness and shine (3x softer, 11x shinier; up to 89% less breakage). Use shampoo and conditioner as a complete regimen. Apply serum to mid-lengths and ends—on damp hair for immediate smoothness or on dry hair before bed for overnight repair. In case of contact with eyes, rinse immediately.