Opalescence home teeth whitening gel 20% concentration Would you like to whiten your teeth in an easy, effective and safe way? Don't prefer laser teeth whitening because of the high cost! Opal Sense Home Whitening Gel is ideal for people who want a lot of options and different concentrations Opalescence Home Whitening Gel allows you to obtain professional whitening results comfortably, in a safe and effective way - Opalescence teeth whitening gel with a concentration of 20% contains carbamide peroxide, which guarantees you a bright white smile in the fastest and safest way. Contents: - Eight 1.2 ml needles, each needle is sufficient for use 2-3 times - Opalescence whitening toothpaste 28 g. - A box for storing your template (which is custom-made at the clinic). - A card to compare the degree of teeth whitening before and after bleaching. How to use: (A teeth whitening tray must be customized by the dentist) and is not available with the product - Brush your teeth well before use. - Get your dental tray and put the gel in it continuously from the beginning of the tray to the end. - Fit the mold tightly to your teeth. - Gently clean the remaining teeth whitening gel in the gums using a soft toothbrush. - Leave the dental tray on your teeth for 2-4 hours. - Brush your teeth after the specified period using water and a toothbrush - Make sure there is no gel residue on your teeth and gums. *For more details, watch the attached video. note If you experience severe sensitivity, discontinue use and consult your dentist How does teeth whitening gel work? Stains on your teeth can be classified in two ways: external or internal. External stains appear on the surface of your teeth, while internal stains appear between miniature cracks in the enamel and deep within the dentin. Toothpastes and whitening washes may be able to remove some external stains on your teeth. But only teeth whitening gel can remove stubborn and unsightly internal stains that make your teeth look discolored. The gel contains an active whitening ingredient (either carbamide peroxide or hydrogen peroxide) that penetrates the enamel to reach the internal pigmentation molecules, and then the oxygen molecules interact with the pigmentation molecules in your teeth. It breaks the bonds that trap it inside the tooth, and with the spread of oxygen molecules, the entire teeth whitening process takes place, and as a result you get a brighter and whiter smile.