CURAPROX Black is White 90 ml + Toothbrush 5460 Ultra Soft Whitening toothpaste taste LIME Toothpaste with whitening action based Activated Carbon. Used synergistically together to the toothbrush Curaprox 5460 Ultra Soft, it acts to remove in a delicate patina colored teeth. The paste is distinguished from all other toothpastes for the color black as the activated carbon present in the formulation. The whitening power given by the activated carbon is supplemented by a Blue Filter that helps reduce optically yellowing enamel and enhance the whiteness of teeth. Use Use two or three times a day for two months