Because it is rich in moisture, it is very useful for coloring damaged hair. In such situations, hair coloring is the ideal approach to change hair color. Ion Color Brilliance Demi-permanent Hair Color - Reviews Makeupalley Apply mixture immediately after mixing to dry hair. How to mix ion demi permanent hair color . Hair has previously been colored with permanent hair color then an application of ion® color brilliance™ color corrector should first be done. Mix hair dye according to the kit instructions in a plastic bowl or small glass. After you’ve done that you should mix 2 oz. Ion demi permanent hair color mixing instructions. This dye is also good for blending gray hairs into the rest of your hair color. Bottle of dye, mix it with 2 oz. Either stir it well in the bowl or shake the bottle until thoroughly mixed. Of demi permanent color (full tube) and mix well. First, you need to decide which hair color shade you want. If you are going more than 3 leve...