Boost cellular repair of chemically damaged hair with this expertly formulated treatment, containing concentrated Keratin Bond Complex™. Each application contains 7 days worth of lost Keratin. Hair feels dramatically softer and stronger after just one use. Extreme Repair. Prevents future damage. Heat protection. Up to 96% less breakage. Each application contains 7 days worth of keratin* (*VS non conditioning shampoo). Known to penetrate inside the hair fibre to help fortify the internal proteins from within. The booster contains 10x more keratin than using just shampoo and conditioner. Hair is left dramatically stronger after just one use. Strengthens hair protein and protects hair against future damage. Known to fortify against future heat damage.