I have been using Hydrating shampoo by Biolage for 20 years. It makes my hair look and feel fantastic. Nothing else is the same. Clean hair has great energy - you can feel it, and so can others. One of the best compliments I ever get is when somebody stops me on the street and says "Damn, you got shampoo-commercial hair!" It's as if I am the most beautiful creature on Earth and my hair says so in that language only hair can speak. A total shout out to Biolage for making it happen. Wash your hair with this and feel the difference.