Check-in to Blonde Rehab with dry, brittle and frizzy hair. Check-Out from Blonde Rehab with soft, strong and shiny blonde hair. Smooth frizz and restore volume in just 1 use with the Provoke Blonde Rehab N0’4 Smooth and Defrizz hair serum. Blonde Rehab is designed specifically for those with damaged blonde hair, which is naturally thinner and more fragile. Formulated with a bond building complex and a boost of keratin and hyaluronic acid. This weightless multi-benefit serum provides a hydrating veil around each hair strand, smoothing frizz and visibly restoring vibrancy for all hair types and textures.