I have used other "clarifying" shampoos but found Malibu C Un-Do-Goo Shampoo at CosmoProf, and was amazed at the difference in my client's hair. She has well water and it's difficult to maintain the bright blonde she enjoys. This shampoo helps her at home AND I always use it before her hi-light service. I'm very interested in learning more about the rest of the Malibu products! All of them!