I have horrible well water and even with filters, it has made my hair dry and brittle. I heard great reviews of Malibu C Hard Water Wellness so I tried it. I could tell a difference in the way my hair felt after the first use of the Hard Water Wellness Shampoo and Conditioner. I color my hair blonde and had it colored a day after I started using the product. I have been using the products for about a month and a half and I can tell a difference in the way that my color has lasted. It isn't brassy looking the way it normally is when it's time to have it colored. My hair has grown a lot faster than normal and just feels healthier. I went to my stylist tonight for color and she told me she could tell a difference in the way my hair looked as soon as I walked into her salon. She also told me she could see a big difference in the way my color processed and also in the ease of styling it after color. I'm so happy I finally found something to restore my hair!! I will definitely keep using this product!