Help CenterThe main differentiator in the ColorKick® Illuminating Mask is our patented and proprietary Alpha Keratin 60ku®, which is clinically proven to holistically repair and strengthen each strand. Additionally, the performance and efficacy of this mask was maximized without the use of synthetic pigments (that often leave residue and buildup on strands), and instead all-natural colorants of both blue and purple to tone all shades of yellow and orange brassiness.