What is the purpose of using a toner in hair color services?

The use of toner in hair color services serves primarily to neutralize unwanted tones in the hair. When hair is lightened or subjected to certain coloring processes, it can take on unwanted hues, such as brassy or overly warm tones. Toners are specifically designed to address this problem by depositing color that counteracts these unwanted shades. For example, a purple toner can neutralize yellow tones, while a blue toner can counteract orange tones. This ability to refine and enhance the overall hair color is what makes toner an essential component in achieving the desired results in hair coloring.

Other functions of hair treatment products may include adjusting color depth, improving hair strength, or prolonging color, but the primary role of toner is specifically to refine and balance the hair's overall appearance after coloring.