Wella Cooling Violet 050 Toner (silver color) How do I use Wella toner? The easiest way to apply Wella toner is to mix 1 part toner with 2 parts developer. Pull on disposable gloves and clip up the top layers of your hair. Using the applicator brush, apply the mixture evenly from root to tip, working from one side of the layer to the other. *Advisable to use a plastic bowl when mixing *Package includes: WELLA COLOR CHARM 42ml with FREE Developer 100ml Happy Shopping!