The toothpaste also contains a very effective and gentle silica combination. The Relative Dentine Abrasion (RDA) of the toothpaste is tested at Indiana University, USA. The value is 65 and toothpaste with a RDA value below 70 is said to have low abrasion according to the American Dental Association (ADA). This means the toothpaste is safe for daily use and does not harm enamel or the dentine. In addition, the toothpaste contains Stay FreshTM technology for clean and strong teeth and fresh breath.