Using this Manic Panic Pillarbox Red Amplified Semi - Permanent Cream Hair Color is easy. First, make sure your hair is clean and dry. Then, apply the hair color evenly through your hair, starting from the roots and working your way to the ends. Leave it on for the recommended time, usually around 20 - 30 minutes. Rinse it out thoroughly until the water runs clear. Before using this product, always do a patch test on a small area of your skin. Wait 24 - 48 hours and if there's no redness, itching, or irritation, it's safe to use. If you experience any discomfort, stop using it right away. To maintain your bright scarlet hair, use a color - protecting shampoo and conditioner. Try to avoid excessive heat styling as it can fade the color faster. Also, limit your hair's exposure to direct sunlight, as UV rays can cause the color to fade.