Redken's Salon Exclusive Concentrated Protein Treatment for clients with damaged or over processed hair. This treatment is used after a customized treatment of Acidic Moisture Concentrate and/or Acidic Protein Amino Concentrate.What It DoespH of 3.0-4.0 helps to seal the cuticle to lock-in treatment benefits and add instant shine.What Else You Need to KnowVisibly reverse surface damage in a single treatment!