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Over the past few years, the obsession with face-slimming treatments through at-home microcurrent gadgets, gua sha, and in-office treatments (i.e., buccal-fat removal) has been at an all-time high.

Editor’s note: As of about 3 p.m., the NuFace Mini has sold out at both Sephora and Ulta. But if you missed this deal, don’t worry: Ulta will have more daily deals for its 21 Days of Beauty Sale ...