Properties:- it is a new, advanced formula that ensures professional whitening results;- the unique combination of the whitening power of oxygen and Arctic Lichen actively removes dental stains for an intensely white smile;- the device filled with active gel is easy to use, it is thin, flexible, ensuring comfortable use for all dentition sizes;- the structure of the device ensures the whitening effect on both sides of the teeth externally and internally;- O3X is tested and proven to have visible effects by whitening in just a few days; - the whitening shades that can be obtained comply with the Vita Classic A1-D4 scale (standard scale used by dentists to determine the color of teeth); - the non-abrasive formula is gentle on teeth, enamel and gums; - without peroxide. Active ingredients: O3X uses the power of oxygen and removes dental stains for superior whitening effects. Arctic Lichen natural active ingredient fights against plaque and naturally whitens teeth first. The super comfortable device perfectly fits the dental arch, contains O3X Gel advanced whitening formula. How to use: Place the device on each dental arch and press gently to ensure perfect contact between the whitening gel and the internal and external surface of the teeth. Close your mouth carefully and let it act for 10 minutes. Remove the device and rinse your mouth with water to remove residual gel. Whitening tips: Test the shade of your teeth with the BlanXometer inside the box. For even better whitening results, brush with O3X Toothpaste or another Blanx Toothpaste before applying the device. Do not consume food or liquids earlier than 15 minutes after the treatment. Contraindications: Not recommended for children under 14, pregnant or breastfeeding women. Do not use on dental implants, artificial enamel or dental crowns. Presentation: 10 bottles