This works by protecting the cuticles so that they remain clear, thus allowing light to pass through and so illuminating the natural high and low lights from within the hair. Crucially, this is effective in any kind of light and Wella claim their tests show up to 70% more light reflection than their biggest competitor. ILLUMINA COLOR is Wella's biggest colour innovation in over 20 years. It features a palette of 38 shades, each one bursting with gorgeous light, that deliver colour results with incredible shine and luminosity. But, how do you know what shade of blonde toner to use? Start by looking at the underlying pigment the lightener has exposed. If the hair hasn’t yet been lightened, preempt the tone that might appear as a result of lifting. ILLUMINA COLOR is designed for mixing 1:1 with Welloxon Perfect and will give up to 100% coverage of white hair with a sheer result. Vary the strength of Welloxon to achieve different levels of lift—6% for 1 level, 9% for 2 levels or 12% for 3 levels. Not recommended for mixing with Koleston Perfect.

As for ratios, we recommend mixing the colour 1:1. For example, you might try 30g Koleston Perfect or Illumina color + 30g Welloxon Perfect Developer. Blondes become elevated, dark browns develop natural gleam and auburns shine with gloss and vitality. It's all thanks to Wella's patented Microlight technology.