Shelves and shelves full of toothpastes, mouth rinses, teeth whiteners and more — which one to buy? In addition to having to choose from a multitude of items, patients may also have questions about the chemicals that make up these products. Dental professionals field questions about toothpaste and whiteners with ingredients such as fluoride, sodium lauryl sulfate (SLS), triclosan, and hydrogen peroxide and/or carbamide peroxide. Some patients favor products free of these elements and move toward what are perceived as better, natural products. Dental professionals should know about research regarding chemicals in dental products that patients are likely to encounter.