This product you need it if you have blond hair!! Let me tell you it is EVERYTHING..EVERYTHING! I color my hair blond with highlights. And at times my hair can get a brassy hue due to the water i use song with other factors. This literally keeps all the brass and keeps my hair looking fresh, healthy and makes the color last and look great. I get my hair redone every so many months and this is the key to why I don't have to go monthly!! I can't live without it. I will always keep it in the shower because it's a hair lifesaver in a bottle!!