Semi-permanent toning is an excellent choice for clients who want to change their hair color more frequently. Experiment with shades that give hair shine and depth while adding care without the client needing a permanent hair color. Mix 1 + 1.5. Used with Dia Activateur Oxydant 6 vol. (1.8%), 9 volumes. (2.7%) or 15 volumes. (4.5%). Effect duration up to 20 minutes.