Check into Blonde Rehab with dry, brittle and frizzy hair. Check out from Blonde Rehab with soft, strong and shiny blonde hair Reverse hair damage in just 1 wash* with the Provoke Blonde Rehab N0'1 Hair Perfector Treatment. This hair perfector treatment rebuilds bonds from the inside out and repairs damage for strong healthy-looking hair in just 1 wash*. Formulated with a bond building complex and a boost of keratin & hyaluronic acid.