Bratz Hair Color

It says on the box do not use on children. But I tried it on a small piece of my hair is gone for an hour, and washed. I fear he will not leave if I leave it in for 8-9 hours. What do you think?

It goes out but does not leave any color on your hair more than an hour.
If it is cheap, it will cause hair loss. Any hair dye left for time tuin your hair completely.

not a good idea.