Ultradex recalcifying and whitening daily oral rinse is a clinically proven formula developed by dental professionals and a leading uk university for sensitive teeth it contains hydroxyapatite the key natural building block of teeth which recalcifies tooth surfaces leaving them smoother brighter and less likely to stain and provides a protective shield over tooth enamel the advanced technology within ultradex whitens teeth by gently lifting organic stains eliminates odour causing compo