Dull and dull hair? Illuminating Booster brings greater brightness and shine to the hair without weighing it down.
How to use:
Mix 1 part of booster with 10 parts of mask / conditioner (ratio of 1 to 10) and apply to washed and well-towel-dried hair. For the most critical situations, mix 2 parts of booster with 10 of mask.
Leave on for a few minutes before rinsing carefully.