Clinically proven, with a combination of patented dual-action technology patented technology. UltraDEX Whitening has been scientifically developed to enhance and whiten smile, eliminate bad breath instantly for 12 hours and also provide a protective shield over enamel, suitable for sensitive teeth. Helps remineralise teeth leaving them stronger and less sensitive. Used and recommended by dental care professionals. - Enhances and whitens smile and restores natural whiteness to teeth - Clinically proven advanced iQ+ ActiveOxi - Technology instantly eliminates, not just masks odour-causing compounds (Volatile Sulphur Compounds) for 12 hour fresh breath confidence - Protects teeth and gums by removing bacteria and helping to prevent plaque - Backed by extensive scientific research SensiShield Enamel Defence (with hydroxyapatite) helps remineralise teeth and provides a protective shield over enamel - Ideal for daily use or as part of a whitening maintenance programme.