You don’t need a ring light. You need Crest 3D Whitestrips and right now, they’re up to 40% off.

This classic, low-effort brightening fix actually works (we’ve asked experts and even tried ourselves), doesn’t mess with your gums and lets you sip iced coffee in public without second-guessing your smile. The Prime Day deal covers multiple formulas, including the ones our editors buy in bulk.

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Editorial Note: Opinions, analyses, reviews or recommendations expressed in this newsletter are those of the NBC Select editorial staff's alone, and have not been reviewed, approved or otherwise endorsed by any third party. Pricing and availability are accurate as of publish time.