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Teeth whitening strips  are flexible gel-based film strips for teeth whitening. They are easy to use, effective, and whiten teeth quickly. How do teeth whitening strips work? What are the characteristics of the different types of teeth whitening strips? Take a look below! How Do Teeth Whitening Strips Work? Teeth whitening strips are made of a soft plastic material covered with a thin layer of whitening gel, usually containing hydrogen peroxide or carbamide peroxide. When you place the strips on your teeth, the gel makes contact with the tooth surfaces and penetrates them to begin the whitening process.  Dead Sea Salt Teeth Whitening Strips Different Types of Teeth Whitening Strips Yellow teeth are a worry for many people. Healthy teeth are not very white. A color that matches your skin tone is the healthiest. However, some people overly pursue white teeth and use whitening products indiscriminately, which affects their health. I believe some people have used teeth whitening s...