<p><strong>Features</strong></p><p><strong>Teeth discoloration is a common concern for many people. Thankfully there are several options available to get a brighter, whiter smile. Teeth whitening can be achieved through various teeth bleaching methods, including in-office and at-home treatments. Teeth whitening kits have become increasingly popular as people seek for simpler and more convenient ways whitening their teeth. </strong></p><p><strong>The working principle of these teeth bleaching kits is pretty simple. The trays hold the whitening gel in constant contact with the teeth, which facilitates the bleaching process. Whitening gels contain carbamide peroxide and hydrogen peroxide as the main bleaching agents. Fast-acting gels mainly contain higher hydrogen peroxide concentrations, making them more effective at removing surface stains and deep discoloration.</strong></p><p> </p>