Using this Manic Panic Vampire's Kiss hair color is easy. First, make sure to do a patch test on a small area of your skin 24 - 48 hours before full application. If there's no reaction, you're good to go. For adding highlights to darker hair, apply the dye directly to the sections you want to highlight. If you have bleached hair, you can apply it all over for a brighter, all - over color. Leave it on for the recommended time, then rinse thoroughly. After coloring, use a good quality conditioner to keep your hair soft and shiny. Remember, this is a semi - permanent color, so it'll fade over time. To maintain the color, use color - safe shampoos and avoid excessive sun exposure. And always follow the patch - test rule to ensure your skin doesn't have an adverse reaction.