Gurgov tells us that hot water opens up the hair cuticle, which allows the red color to slip out.

Neutralizing red hair color. You can leave it in your hair overnight, and it will help to tone down the redness. Try and apply bleach on your hair from tip to toe. It works best on brown or dark hair for red and orange tones;

With that knowledge, you’ll be able to fix or correct any color job. Achieving a darker hair color if you'd like to get rid of red hair and the new hair color. Dyeing your hair darker using an ash shade is one of the ways to neutralize red shades.

While a purple shampoo might be the trick for your blonde friends, it won’t work the same to neutralize your red tones, and it all goes back to color theory. Here is how to neutralize red tones with green shampoo: Violet, purple and purple based.

Because green is a color that is placed in the opposite position with the red on the color wheel, the slight green color in the shampoos or conditioners can make your hair reduce. As you may know, colour does not remove colour. Rinse the color out of your hair with cool water until the water runs clear.

Shampoo, toner, or hair dye. The myth of neutralizing haircolor; If that works for you, here’s how to use it:

Applying a green tone will help tone down the red tones to give you a neutral look. Blue shampoo is one of the best ways to neutralize red tones in hair. Allow your red hair color to fade naturally;