25 Star-Tested Beauty Tips & Tricks

From getting on-trend nails like Miley Cyrus to flawless summer skin like Jennifer Hudson, stars and their hair and makeup stylists share their top tips for getting gorgeous.

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KATHERINE'S MICRODERM MACHINE

While filming The Ugly Truth, the actress made a get-gorgeous discovery and brought home a Crystalift Vacuum Microdermabrasion machine like the one she'd tested out on set. According to the brand's dermatologist, Laura Peña, the at-home skincare system incorporates the same dual-action, cell-renewing technology used in doctors' offices for impossibly smooth skin. But while ongoing clinical session costs $2,000 to $3,000 per year, "Crystalift saves users over 95 percent off treatment prices."