A root touch-up addresses new growth while keeping the existing lengths in mind. Matching the colour at the roots is a different task from changing the whole head.
Tell the colourist what was used previously, especially if you have applied colour at home. Explain whether the priority is grey coverage, matching your current shade or a change at the roots. Ask about suitability and any required allergy testing before the appointment.
Your existing shade, home colour history, grey coverage and allergy-test requirements.
AI-generated treatment illustration.