Navigating The 'Aisle Of Confusion' To Whiten Your Teeth
"Walk down the aisle of your local pharmacy or grocery store and you'll be bombarded by a dizzying array of bleaching products, from gels and strips to paint-on bleach.
"Strikingly white, bright smiles dominate TV and social media, and people tend to prefer the bright teeth of youth rather than those that have been yellowed by trauma or age.
"But if you decide that you, too, want a brighter smile, it's hard to know where to start."
Read more: http://www.npr.org/sections/health-shots/2017/08/14/542830158/navigating-the-aisle-of-confusion-to-whiten-your-teeth