I box dyed my hair blonde and all it did was strip my hair back to the natural colour despite me leaving it on for more than the recommended time.
im not going to wash my hair for a few days before I redo it.
What else can I do to make sure it actually works this time?
Most Helpful Girl
First, don't use box dye. Its the worst and never turns out how it is supposed to and it does so much damage. You will most likely have to strip your hair, which means bleach. I would recommend using 10 volume developer with powder bleach from a beauty supply store. Only put it on the middle of your hair shaft to start. Then once the hair gets a couple shades lighter or almost to the shade you are going for, put it on the roots and ends of hair. These process much faster which is why you do them last. When you think you have gotten to the right color, wait ten minutes. The bleach will make it look lighter than it actually is. You may need a toner to get rid of the brassy color caused by bleaching. Depending on how light you are going, try Wella toners to take out the unwanted color
Good luck :-)0