Wyoming State Board Barber Practice Exam

Using a double-process hair color is specifically intended for situations where significant lightening is necessary, such as lightening hair more than three shades. This method involves first bleaching the hair to lift the natural pigment and then applying a color to achieve the desired shade.

In scenarios where the hair is being lifted dramatically, a single-process application might not effectively reach the desired level of lightness or might result in uneven color. The double-process technique allows for a more controlled application, ensuring both the lightening and toning steps are done to achieve the best possible result while minimizing damage to the hair.

While adding highlights can involve different techniques like foiling, covering gray hair typically relies on a single process, which is more straightforward. Applying a toner is often a single-step process that modifies the tone of pre-lightened hair rather than lightening it to such a significant extent that a double-process would be necessary.