Natalie PortmanGET THE LOOK: Heavy bleach may get ketchup out of our laundry whites, but harsh peroxides can wreak havoc on our other whites: tooth enamel. In an age when whitening products are everywhere, an over-bleached grin can easily become damaged, dull and lackluster.
INSIDER TRICK: Protect the naturally lustrous dentin of your tooth enamel: Look for a whitening formula that's gentle on teeth and contains ingredients to restore glossiness.
BUY ONLINE NOW: Crest VividWhite toothpaste, $4
SPRING MAKEUP: See stars wearing the hottest new colors.
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