Using Lunar Tides Fire Opal hair dye is easy. First, if you want the most vibrant color, bleach your hair to an evenly pale yellow to platinum shade. Make sure to do a strand test because the color in the bottle might look different on your hair. Apply the dye following the instructions on the package. 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 sun exposure as it can fade the color. If you have dark or previously dyed hair and are bleaching it for the first time, remember that you must achieve an even pale yellow to platinum color for the best results.