Using this Attitude Angelic Pastel Blue hair dye is easy. First, shampoo your hair and dry it thoroughly without using conditioner. You can use coconut oil or Vaseline around your hairline and on your ears to avoid skin staining, but it's optional. Wear protective gloves when applying the dye. Use a colour brush to apply the dye evenly, starting at the hair roots and working through to the ends. Make sure to completely saturate the hair. Leave the dye on for at least 30 minutes. Don't worry, it won't damage your hair as it has added conditioner. Rinse your hair until the water runs clear. Make sure your hair is completely dry before sleeping to prevent colour bleeding. Don't wash or rinse your hair for 48 hours. If you stain your skin, use make - up remover or a little rubbing alcohol to remove the stain. Remember to pre - lighten your hair to at least level 9 (light blonde), level 10+ (platinum) is better. Do a patch and strand test first. And use HolyPlex Haircare to keep your beautiful blue colour for as long as possible.