Fast, effective, super-convenient on-the-go teeth whitening. You can carry this twist-action, brush-tip whitening pen with you and use anywhere, anytime. With this formula, the gel dries onto your teeth, so no need for strips or trays. Designed in a sleek, chic package for anytime use, you can use it after meals or in between meetings. In a 7-day clinical study involving 10 subjects, the whiteness of their smiles improved an average of 6 VITA shades after using pen two to four times per day. Just brush onto teeth and voila! (3 x 0.11 fl. oz. / 3.3 mL)