Enamel strengthening. Natural enzymes break up dental plaque in hard-to-reach places. Essential oils of anise, grapefruit, clementine, peppermint and thyme freshen breath. Active calcium and Innovative BIO Sp.White System® with hydroxyapatite and Lysates help to strengthen teeth, polish enamel to a shine and promote oral care health. The high content of these ingredients helps to remineralize dental enamel and reduce hypersensitivity.