Christophe Robin Color Shield Hair Mask & Nutrition Protection 8.33oz / 250ml. Christophe Robin's color shield mask intensely nourishes hair. Highly concentrated in macadamia oil to restructure hair and seal the nutrition at the core of the fiber, the combination of natural antioxidant vitamins and acidic pH of its formula protects and preserves color intensity and shine over time. NEW & UNUSED in its original container and packaging.