Perform a patch test 48 hours before full application.
Wear gloves and mix the colorant and developer as per instructions.
Apply to dry, unwashed hair starting from the roots, then work through to the ends.
Leave for 25 minutes (or 30 minutes if covering gray hair).
Rinse thoroughly until water runs clear.
Apply the included after-color conditioner, leave on for 2–5 minutes, and rinse.
Style as desired.