How to fix orange hair, a process referred to as color correction, mends color-treated hair that has turned orange or brassy. One example of how hair can turn orange is if it has been lightened or bleached too much, revealing the underlying warm tones.
Color correction is crucial because it can restore hair to a more natural or desired shade, eliminate unwanted orange or brassy tones, and prevent further damage to the hair. An important historical development in hair coloring was the invention of bleach in the 1860s, which enabled the lightening of hair and paved the way for various hair color trends, including orange hair.