I have level 5-6 brown hair that fades orange very quickly, even when I refresh the color with cool demi-permanent colors. I've tried various blue shampoos, but I feel like they don't do the job. Grazette in the color Ocean was perfect for toning it since it has a lot of pigments! If others want to use it for the same purpose, I would choose not to leave it in longer than 5 minutes. I had it in for 20 min, and I got quite a bit of color that set extra well in some places, and not so well in others. It's better to leave it in for just a few minutes more often than 20 min at once. :) I would be cautious about using it for toning orange hair that is lighter than level 6 unless the goal is blue hair!