I have very vibrant violet highlights in my hair, and they tended to "fade" quickly in the past with the previous shampoo and conditioner that I have used. While using Malibu C Color Wellness Shampoo and Conditioner, I have been able to get the purple to stay vibrant and fresh for almost six weeks! That is truly unreal and even my stylist asked what I was doing differently. I just got the highlights done about two weeks again and had ran out of my Malibu C Color Wellness products and my violet highlights already faded!! I cannot be without my Color Wellness products!