I used it a few years back. It did remove the color, but the what I was left with, was not something I could go outside with. It tones down (and maybe even strips?) color. But you will most likely have to dye or rinse your hair afterward. The color I was left with was orange and dark brown in some spots. My hair dresser (at the time) covered most of it with a brown rinse that matched the brown parts. I find it unpredictable so I wouldn't really recommend it. Idk if this is the best way to do it, but when your color is too dark you can wash with sulfate shampoos often to tone it down. I have done this before. But maybe someone more experienced with toning color will chime in.