Using this Lunar Tides Plum Purple hair dye is easy. First, if you want vibrant results, bleach your hair to a pale yellow to platinum color. Make sure the bleaching is even, especially if you have dark or previously dyed hair. The color of your hair before dyeing will affect the final shade. Do a strand test first because the color in the bottle may look different from how it appears on your hair. Once you're ready, apply the dye following the normal hair dye application process. Since it's semi - permanent and non - damaging, you don't need a developer. After application, let it sit for the recommended time and then rinse it out. To maintain the color, use color - safe shampoos and conditioners. Avoid excessive heat styling as it can fade the color faster. Also, try to protect your hair from direct sunlight for long periods as it can also cause the color to fade.