Famous How Do You Lighten Hair Colored Too Dark Ideas. If it’s a toner that has made your highlights too dark, you may be able to remove some of it by giving your hair a quick wash. First, try washing your hair with a clarifying shampoo.
In this section, you’ll learn how to lighten your hair color if it’s too dark. When you feel your hair has reached the desired shade, rinse. Your hair is extremely porous.
