Goldwell Dualsenses Color Extra Rich Brilliance Conditioner 33.8 Ounce 1000 Milliliters Color-Protecting Conditioner for Thick to Coarse Color-Treated Hair. Dualsenses Color Extra Rich Brilliance Conditioner instantly detangles the hair. Rich in Raspberry Seed Oil to reduce color fading; Boosts color brilliance. Instantly brings out color luminosity of color treated and non-color treated hair. As gentle as water, the unique FadeStopFormula minimizes color fading.