In a double-process after rinsing and checking for scalp abrasions you should:

In a double-process after rinsing and checking for scalp abrasions you should:

• A. Rinse again and apply conditioner
• B. Mix and apply toner
• C. Apply a gloss treatment
• D. Apply neutralizer only

Answer: (B)

Toner is the next step after a double-process because it finishes the color by neutralizing unwanted undertones and setting the final shade. After the hair has been lightened and the scalp is clear, mixing toner with the appropriate developer and applying it deposits the targeted tone, correcting brassiness and achieving the desired level. The toner’s action is intentional color adjustment, not just conditioning or shine. Once processing is complete, you rinse and condition as usual. The other options don’t fit because rinsing again and conditioning won’t correct the tone, a gloss changes shine more than the base color, and a neutralizer is used for stopping chemical action in other services rather than for toning color.