The best way is to have it stripped out.
Having it stripped out requires getting a bleach/cleansing bath. This is where they put bleach on the hair and rub it to remove the colour. It can cause a...
Depending on the number of the dye, it may be semipermanent, a rinse, or permanent. Read the box to find out which one it is. For all but permanent, over time, shampooing will remove the dye. If the...