Using Manic Panic's Electric Pink Pussycat hair dye is easy. First, lighten your hair to the lightest, level 10 blonde for the best color payoff. Then, apply the cream formula evenly to your hair. Leave it on for the recommended time, usually as per the instructions on the box. Rinse it out thoroughly. Remember, this is a semi - permanent hair color, so it will fade over time. To make it last longer, avoid washing your hair too frequently and use a color - safe shampoo. Also, protect your hair from excessive sunlight and heat styling. This product is vegan and won't damage your hair, but it's always a good idea to do a patch test before full application to check for any allergic reactions.