The higher the volume of developer, the more peroxide it contains, and the harsher it is on your hair.
Adding the shampoo to the mix makes it a little less abrasive on your hair.
If you’re wearing nice clothes, now would be the time to change them before you start the bleaching process.
If you’re having trouble spreading the bleach bath with the applicator brush, use your fingers. Just make sure you’re wearing rubber gloves! Do your roots last. Roots will take on bleach a lot faster than the middle and ends of your hair will.
Never leave the bleach bath on for longer than 30 minutes—this could really damage your hair or even cause it to start falling out. The bleach bath will definitely lighten your hair 1 to 2 shades, and it’s your best bet for removing the blue hair dye in one go.
If you’re going to dye your hair another color right away, skip the conditioning step, as that could mess up the dyeing process. If your hair seems especially dry, consider doing a hot oil treatment to infuse your locks with some extra moisture.
The citric acid in the Vitamin C tablets breaks down the dye in your hair, which makes it come out easier when you wash it. This method works best on semi-permanent dyes, but it can also help to lighten permanent dyes, too. Repeat this process as many times as you want to get the color you’d like. One treatment should lighten your blue hair by one shade, so depending on how dark your hair is, you may need to do 3 or 4 treatments.
The dandruff shampoo and baking soda combo works well because the shampoo contains clarifying properties, which strip away color, and the baking soda is great at removing stains, which is essentially what has happened to your hair. This is a great way to speed up the fading process for blue hair dye. Use this method each time you wash your hair to quickly fade your locks over the course of several weeks.
Dish detergent has high sulfate levels, which causes hair color to break down and wash out more quickly (that’s why people who color their hair use sulfate-free products). Don’t repeat this process too often, just once a week as needed, as it can really damage your hair quickly.
Vinegar is acidic and helps break down the dye in your hair. Hair experts don’t recommend using apple cider vinegar because it’s less acidic and not as effective at fading hair dye.
You could even squeeze the juice of a lemon on your hair before spending time outside in the sun to help fade your hair more.