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Revlon One-Step Volumizer Plus 2.0 ($45, originally $75)

Revlon's One-Step Volumizer Plus 2.0 is a viral favorite for a reason, and we put it to the test. It will cut your getting-ready time in half and make it incredibly easy to get a salon-quality blowout in the comfort of your home. One of our editors wrote, "The biggest difference I noticed between this brush and others I've used in the past is how well my hairstyle stayed put. . . . [M]y flipped-in ends lasted even after a night of sleeping on them." Read her review of the Revlon One-Step Volumizer Plus for more.