25 Star-Tested Beauty Tips & Tricks

From brushing your way to Demi Moore's hair to faking a glow like Ginnifer Goodwin's, stars and their hair and makeup stylists share their top tips for getting gorgeous

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BRIGHT SMILE

Keeping your whitened teeth stain-free on the go is as simple as walking and chewing gum at the same time, says Dr. Kevin Sands, who's worked on some of Hollywood's brightest smiles, including Mandy Moore's. "Chewing sugarless gum immediately after eating or drinking stain-causing foods or beverages such as berries, red wine or coffee can promote saliva flow before stains have a chance to set," he says. "An added benefit is that [sugar substitute] xylitol has been shown to help prevent decay."