If you want your teeth to dazzle, you don’t need an expensive professional whitening treatment. Heck, you don’t even need at-home whitening strips. You can easily whiten your teeth every day with Opalescence’s new Fluoride-Free Toothpaste. Bonus: For a limited time, shoppers can take 15% off with code USWEEKLY15.* Using a whitening toothpaste every day is an especially good idea if you regularly consume coffee and wine (guilty!). This gentle but effective formula from Opalescence (developed by dentists!) is stronger than your standard whitening toothpaste, thanks to 10.5% nano-hydroxyapatite,...