To use this Lunar Tides Beetle Green hair dye, first, if you have dark or previously dyed hair, bleach it to a pale yellow to platinum color evenly. Then do a strand test to see how the color looks on your hair. Once you're satisfied, apply the dye all over your hair. Since it's semi - permanent, the color will gradually fade over time. It's non - damaging and doesn't need a developer, so you don't have to worry about harming your hair too much. To maintain the color, use sulfate - free shampoos and conditioners. Also, avoid excessive sun exposure as it can make the color fade faster. Remember, the color in the bottle might look different from what it is on your hair, so always test it first. And if you're a first - time bleacher, make sure you lift your hair to the right color for the best results.