Discolouration removed and cleaner By Les SzaboJanuary 2, 2018June 5, 2018Demineralisation, Discolouration, Product Review, Product Review, Stronger / Cleaner It gives teeth a glassy smooth feel. According to my dental hygienist, my teeth are cleaner too. No dental problems since using it. Teeth appear cleaner, and light discolouration has been reduced.