Review (1/5): disapointed.
If you want to be able to brush or comb through your hair afterwards, don't use this. If you want a halfway clean bathroom after you're done, don't use this. I guess it would be fine if you just want a streak or two but I died the bottum half of my hair (and the carton does say you can use it as an all over application) and by the time I was done the bathroom was blue, I was blue but my hair weren't.