21 Star-Tested Summer Beauty Secrets

Want Leighton Meester's bright pout or Cameron Diaz's natural glow? Hollywood's beauty experts give us their top tips and tricks for staying gorgeous all summer long! By Katherine Kluznik

  • DAZZLING SMILE photo | Christina Aguilera

Credit: Chance Yeh/PatrickMcMullan.com/Sipa

Updated: Monday Aug 04, 2008 | 06:00 AM EDT

DAZZLING SMILE

Get teeth that could withstand the harshest paparazzi flash by choosing a lipstick shade that makes teeth appear shades lighter instantly. If you're prone to a yellowish smile, try a pink shade that has blue undertones, recommends celebrity dentist Dr. Jonathan B. Levine. Avoid dark shades, which highlight yellow hues in your teeth.