I had been seeing a lot of issues with the health of my hair and the lack of blonde. I have color-treated hair and have always highlighted it, but at some point the blonde just stopped looking good and almost seemed to fade completely out. My hair stylist suggested Malibu C Swimmers Wellness Shampoo because they said my hair had a green tint. I don't swim at all though so we thought it must be in my water. We used the Swimmers Wellness Shampoo and it has seemed to improve my hair color. We now know the issue is because I have hard water.