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Social habits, like smoking and sipping on dark beverages, can tarnish the surface of teeth, causing them to appear yellow and discolored. Home teeth whitening systems can reverse this natural wear and tear, resulting in a whiter smile.

Home bleaching kits come in the form of strips or trays, containing one of two active ingredients—either hydrogen peroxide or carbamide peroxide. Both are equally prevalent in home whitening products and produce comparable results. Learn about two of the most popular and effective home whitening systems: Crest WhiteStrips and Rembrandt FormFit.

Carbamide peroxide was the first ingredient to be used. A slightly gentler compound, carbamide appears in these products in higher concentrations. On average, home bleaching kits contain 5% hydrogen peroxide or 10% carbamide peroxide (dentists can use more than four times this amount). When exposed to water, peroxides create a chemical reaction that breaks down the pigmented elements responsible for staining.