L'Oréal Serie Expert Lumino Contrast Perfector 50ml [Leave-in Hair Treatment] L'Oréal Serie Expert Lumino Contrast Perfector is designed to maintain the beautiful color of hair that has been repeatedly colored, or has undergone design or multi-color treatments. This "sealing repair oil" for colored hair enhances the beauty of color-treated hair with a shimmering shine. Developed with the concept of making colored hair more beautiful, it contains L'Oréal's unique hair repair ingredient, "3D Luminous Care System." The oil components work to prevent the dryness characteristic of colored hair, providing a radiant shine and smoothness, and protecting damaged hair from factors such as UV damage.