If you need to, dry your hair using a blowdryer on a low heat and no styling tools or products to make sure it is completely dry before applying any chemicals to it.

For the weaving technique, you weave the pointed end of the applicator through a small section of hair to pull out half of it. For the slicing technique, you color small sections of hair that alternate with sections that are not colored.

If your hair is very dark black, you will likely want to select the darkest shade of red that they have, as it will not require you to bleach your hair too light, causing damage. For a more dramatic look, you can choose a red that is several shades lighter than your hair.

Developer comes in levels of 10, 20, 30, and 40. Level 10 is the weakest and will be the least damaging to your hair, and 40 is the strongest level and will be the most damaging, but will provide the highest lift. If you’re doing this at home, use a level 20 bleach so you don’t damage your hair too much.

If you have an allergy to latex, any thin plastic glove that fits closely to the hand and allows for movement of your hands will work.

Make sure you are working in a well-ventilated area. This is to avoid irritation of eyes, nose, or skin from any harsh smells or chemical gasses that are put off by mixing and processing the bleach.

Make sure you use a dye brush, as this allows you to get closest to the root of your hair when applying.

Keep an eye on the hair while it is processing. If you experience any burning on your scalp or your hair begins to break, immediately wash the bleach out of your hair.

Your hair should not feel gritty or sandy to the touch if the bleach is properly washed out. If it is still gritty, wash again.

Make sure you are using a new bowl.

If you don’t use foil, the color may bleed out onto your hair and create patches of red.

You normally will not be able to tell what color your hair is under the dye until you wash it, so be patient until it is time to remove the color.

Make sure you apply conditioner formulated for color-treated hair after washing the color out, as it will help to reverse some of the damage done by coloring. [19] X Research source If your hair is not the desired color or as vibrant as you would like, wait 1 week before repeating the bleach and dye process. In that time, wash and condition your hair frequently.