Using Pink Warrior hair dye is easy. First, do a patch test on a small area of your skin and wait 24 hours to make sure you don't have an allergic reaction. If there's no redness or itching, you're good to go. For the lightest, most vibrant neon pink, use it on level 10 blonde hair. If you prefer a deeper pink, you can apply it to virgin, unbleached hair. Just follow the instructions on the box to apply the cream - based dye evenly through your hair. Since it's a semi - permanent color, it'll last longer than our High Voltage Classic color. To keep your color looking fresh, use a color - safe shampoo and conditioner. Avoid excessive sun exposure and hot tools, as they can fade the color faster. If you experience any redness or itching during or after use, stop using the product right away.