It saved me. It is amazing. It removed all the orange hue that my hair gets from dyes and sun exposure. I have tone 7-8 and while I want to dye them to cover white hairs, all dyes left orange tones after the first wash (even with ash undertones 0.11). I work in the sun and the result was that I constantly had orange hair. For 2 years now I have been struggling and no hairdresser had suggested this to me. My post is lengthy but I really feel a great result with this and I want to share it. Just know that it is very strong, intense blue, you need gloves and moderation in use. Maybe mix it into your regular shampoo. When I apply it alone, I leave it on for very little time and only on the top of my head, not on the damaged ends as it will grab. Also, the hair is very moisturized afterwards, not dry.