Smiles are important, and new Crest 3D White Whitestrips know it (they even guarantee it). Just as important: knowing how to safely and effectively whiten your teeth.

Every day our teeth are assaulted by staining substances. The chief offenders: red wine, soda, tea, and this morning’s coffee. Lucky for us, new Crest 3D White Whitestrips Professional Effects are formulated with the same enamel-safe ingredients dentists use, and you only have to apply once a day for 30 minutes, easy!

Are you a whitening wonder? Crest has compiled three key questions to help you navigate the oral aisle and keep your teeth in tip-top shape.