I am a dirty blonde and I get highlights in my hair. A few months ago, my hair was turning this horrible copper color. I was freaking out because I didn't know what to do. It looked terrible. We live in the country and are on well water. My hair stylist told me to get Malibu C Hard Water Wellness products. I followed her advice and my hair is now back to normal. I have to say that it is brighter and softer and a lot silkier than it has ever been! I will keep using these products forever! I am really super pleased with the results and with the way my hair looks and feels. Malibu C definitely works.