What is the purpose of a concentrate in hair coloring?

A concentrate in hair coloring serves the specific purpose of making another product more intense. Concentrates are designed to enhance the overall depth or vibrancy of a hair color formulation. By adding a concentrate, you can achieve a more vivid shade, increase the richness of the color, or adjust the tonal balance of a mixture.

For instance, if a stylist wants to create a more vibrant red, they might add a red concentrate to a color mixture that leans towards a lighter or duller hue. This allows for greater customization and precision in hair coloring, providing the stylist with more tools to achieve the desired result.

The other options pertain to different functions in hair coloring processes. Lightening hair effectively is a separate function that involves different agents such as bleach. Removing unwanted pigments also involves specific processes like color correction, and deepening hair color generally relates to dyes that add richness rather than enhancing an existing product. Thus, while those options address various aspects of hair coloring, they do not accurately capture the unique function of a concentrate.