Ultra - Dex Daily Oral Rinse is a clinically proven formula that was created by a Professor of Dentistry for dental professionals and used and recommended by them. The intelligent i - Q+ Active - Oxi Technology within Ultra - Dex works with your natural oral p - H level to release the appropriate amount of active ingredient to meet the individual needs of your mouth. Ultra - Dex Daily Oral Rinse is clinically proven to whiten teeth within 14 days by gently oxidising organic stains to reveal the true brightness of your teeth. The i - Q+ Active - Oxi Technology is also clinically proven to prevent bad breath by eliminating, not simply masking, odour-causing Volatile Sulphur Compounds (VSC) for all day fresh breath confidence.