Make sure you get shampoo that is not safe for color treated hair, such as Suave Daily Clarifying Shampoo. The point it to strip the color, so you don’t want it to protect the color on your hair. [1] X Research source
The foam should take on the color of the black hair dye. Make sure you don’t get it in your eyes. Make sure you scrub your hair well in this step. You want to get your hair as saturated with the shampoo as possible.
If you have access to a heated dryer, then you can sit under that instead. If your hair is long enough, you may need to clip up sections so it all fits into the shower cap.
Make sure you don’t skip this step. These shampoos strip the oils from your hair and leave them brittle and dry. Conditioning right away will help repair any damage that happened during the process.
Try to give your hair a break of a day or so between treatments. This method will not lighten naturally dark hair. The shampoos only remove added color on your hair.
Some color removers use peroxide, such as L’Oreal Color Zap, while others are made with bleach like products in them, such as Effasol. You could also try a color removal kit from a brand like Pravana. Keep in mind that color removers will not turn your hair back to your natural hair color. Once you are done using them, your hair will most likely be an orange or yellow blond color.
If you have thick or long hair, you may need more than one box of product. Since it had peroxide in it, it will have an unpleasant smell. Make sure your bathroom is ventilated and that you aren’t wearing any clothes that you mind getting messed up. You should always mix the shampoos in accordance to the directions on the box.
If the color doesn’t lift after one use, you may have to repeat the steps. Some color removers are safe enough to use up to three times in one day. Just be sure to refer to the instructions that are provided with the kit to make sure that you can use it more than once. Make sure you use this product with care. The chemicals aren’t as strong as bleach, but they can have a negative effect on your hair. If you already have brittle or dry hair, make sure you condition before you try this treatment. [3] X Research source
If you have capsule pills, you should pop them open to get the vitamin C powder out of them. If you have the pill, you need to grind them into a powder. You can do this by hand or with a grinder or blender. [4] X Research source
If you have long or thick hair, you may need to double or triple the recipe. You will need enough to completely saturate your hair with the mixture.
If your hair is long, clip it up before you put on the shower cap so your hair will stay up.
Make sure you give your hair some time to recuperate before you try it again. The acid in the vitamin C makes your hair susceptible to damage, so waiting will allow your hair time to regain its natural oils before you start again. [8] X Research source
This option can get quite pricey, so be aware of the costs involved. They will have to remove the color from your hair and then dye it, so you will have to pay for both processes. [9] X Research source
Because they are students, be prepared to be used as a model. Clear your day because the process will probably take a few hours.
Depending on if you’ve used a demi-permanent or a semi-permanent color, the time frame can extend from a few weeks to a couple months.