Bliss 'Pore'Fector Gadget

$175 (for tool and toner); BlissWorld.com

The claim: Cleans pores with sonic vibrations.

How it works: After applying the toner, you run the tool's metal "blade" over your skin. It emits sonic waves to help break up and remove dirt and oil.

The verdict: "The ultrasound waves create tiny vibrations that basically shake away dead skin cells and dirt," says Jeffrey Dover, MD, president of the American Society for Dermatologic Surgery. "The device is a gentle—and kind of fun—way to mechanically exfoliate your skin once a week or so. You could get the same effect with a washcloth or smooth-grained scrub, though." (For about $160 less.)

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