Cosmetic teeth whitening is a popular, non-invasive dental treatment. You can choose a store-bought kit or opt for in-office teeth whitening or a professional take-home kit. Inexpensive, over-the-counter (OTC) peroxide-based products are readily available and generally safe, but their low concentration of active ingredients makes them less effective. OTC kits require multiple applications and the results do not last as long as professional whitening.
Which type of whitening is best for you? In-office whitening can accomplish in a single visit what the take-home kit achieves in up to 7 days, while the least costly OTC option produces results in up to 16 days.