It's an intense treatment which works to repair severely damaged hair whilst smoothing and softening to reduce frizz and flyaways. The unique formula contains Core Repair technology, designed to repair proteins within the hair, to protect against the damaging effects of heat styling and chemicals, leaving each strand stronger and replenished. Suitable for weekly use, it's a must have for damaged, dull and distressed hair. Apply onto damp hair, working it from the mid-lengths down to the ends. Allow it five to ten minutes before rinsing off.