To use the Manic Panic Raven hair color, first, make sure your hair is clean and dry. Wear gloves to avoid staining your hands. Apply the color evenly to your hair, starting from the roots and working your way down to the ends. Leave it on for the recommended time on the package. After that, rinse your hair thoroughly until the water runs clear. As a note, always do a patch test on a small area of your skin 24 - 48 hours before using the product. If you experience any redness, itching, or discomfort, stop using it immediately. To maintain the color, use a color - safe shampoo and conditioner. Avoid excessive heat styling as it can fade the color faster. Keep the product in a cool, dry place away from direct sunlight.