Change your hair colour as much as you like. These wont stain your hair and come out after a few washes.
Please read the notes on product below
Shampoo your hair then towel dry really well (your hair must not be dripping wet)
Apply a generous amount all over your hair, roots to ends.
Comb through once. Leave for 3 to 20 minutes.
To determine the best method, test on one section of your hair first to see how well your hair takes.&