Extra White Smiles offers quality at home tooth whitening at a fraction of the price. Our specially formulated gel is our Carbamide Peroxide which comes in various strengths. We have our own gel manufactured here in the USA unlike other whitening gels made overseas whose quality is questionable. Dentists can charge $200- $400 or more for the same tooth whitening products as our professional grade systems. Other methods such as whitening strips and whitening tooth paste offer poor results and are a waste of money since they typically offer only 2-5% carbamide peroxide in their formulas, and ours are much higher.You will love the fantastic results you see or we will refund your money with our unconditional money-back guarantee!