Using this Unicorn Hair Colour Tint is easy! First, make sure your hair is pre - bleached, clean and hasn't been conditioned. Then, massage the colour into each strand. If you want a long - lasting and intense look, leave the dye in for 1 - 2 hours. For a more pastel result, wash it out after 30 minutes. No need to worry about hair damage as there are no harsh chemicals or bleach. Just rinse until the water runs clear and then shampoo and condition like you normally do. To make the colour last longer, use shampoo for colour - treated hair between colourings. Remember, this product is not for use on the face or near the eyes. Don't use it to dye your eyelashes or eyebrows as it could harm your eyes. Before applying, protect your clothes and workspace and wear gloves. Also, do a patch test on your skin (like on the nape of your neck or near your elbow) and wait 24 hours. If you see any redness or irritation, stop using it right away. The tint is ready to use, so don't mix it with developers or permanent hair colourants. It might stain your skin for a short time and will permanently stain fabric. Keep it away from children.