Which process involves lightening the hair and then re-colouring to achieve the desired colour result?

The process that involves lightening the hair and then recoloring to achieve the desired color result is called double-process. This technique is commonly used when a significant change in hair color is desired, particularly when transitioning from a darker shade to a much lighter one or when achieving vibrant fashion colors.

The first step in the double-process involves applying a lightening product to lift the natural color of the hair to a base level that is conducive for the subsequent color application. After reaching the appropriate level of lightness, a secondary color product is applied to achieve the final desired shade.

This method ensures that the hair not only becomes lighter but also that it can be richly infused with color, providing greater vibrancy and depth compared to single-process coloring, which only applies one product for a single result. Techniques like quick-fix and color balancing typically focus on different aims, such as temporary solutions or correcting tone rather than the intensive lightening and dyeing that characterize the double-process approach.