What is the primary benefit of using a toner after bleaching hair?

Using a toner after bleaching hair primarily serves to neutralize unwanted brassy tones that can develop as a result of the bleaching process. Bleaching removes natural pigments from the hair, which can sometimes leave behind warm undertones that may not be desirable. Toners contain color pigments that help to counteract these unwanted yellow or orange hues, leading to a more balanced and cooler hair color.

The desired outcome when using a toner is to achieve a more aesthetically pleasing shade that complements the client's skin tone and desired look. This is particularly important in achieving shades like platinum blonde or ash tones, which are often sought after following a bleaching procedure. In essence, the application of toner can dramatically enhance the overall quality of the hair color, making it vibrant and more visually appealing.