Using this Lunar Tides dark violet hair dye is easy. First, if you want vibrant results, bleach your hair to a pale yellow to platinum color evenly. This is especially important if you have dark or previously dyed hair. The color of your hair before dyeing will affect the final shade. All colors look their best on platinum, but darker tones can work on light and pale yellow hair. Before applying the dye all over, do a strand test because the color in the bottle may look different on your hair. Once you're ready, apply the dye following the normal hair - dyeing process. Since it's semi - permanent and non - damaging, you don't need a developer. After application, maintain the color by using color - safe shampoos and conditioners. Avoid excessive sun exposure as it can fade the color faster.