This product actually works as kind of a toner. The color of the liquid is kind of an indigo. It counteracts any brassy tones (orange/yellow) in your hair This works well for any kind of light blonde, white or gray hair. However a purple shampoo will work just as well for you, so this isn't really necessary if you use one of those. But if you don't want to do another chemical process in your hair (ie toner) then this will work great for you. It is recommended for daily use though I think.