Crest 3D Whitestrips are currently on sale for even lower than their Prime Day price

Here’s something that will make you smile: Crest’s 3D Professional Effects Whitestrips, our favorite at-home whitening treatment, are 24 percent off on Amazon right now. We haven’t seen the price this low since the summer, and not even Amazon Prime Day offered a discount this good. Below, I break down why they’re a staff (and dentist) favorite. Deal of the day Crest’s 3D Whitestrips aim to deliver dentist-level results without an actual office visit. Each kit includes 22 treatments, with one strip for your top teeth and one for your bottom. Crest says the full regimen can make your smile up to 18 levels whiter, using an enamel-safe hydrogen peroxide formula. And shoppers agree that they are super effective, with one even writing that they “finally found something that actually works for [their] coffee-stained teeth.” The brand’s Advanced Seal technology helps keep the strips from slipping while you wear them. One thing to note: Some people may notice mild sensitivity, which is a common side effect of stronger whitening formulas. The teeth whitening kit is currently 24 percent off, bringing the price down to $35 — which brings each treatment in the box down to just under $2. Why this sale is worth it 24% off, which brings each treatment to under $24.6-star average rating from nearly 107,000 shoppersCan whiten teeth up to 18 shades Want more from NBC Selected? Sign up for our newsletter, The Selection, and shop smarter. Why trust NBC Selected? I’m a commerce editor at NBC Selected who covers various topics, including wellness, beauty and lifestyle. I’ve covered sales and major shopping events like Amazon Prime Day, Black Friday and Cyber Monday for more than a decade. Catch up on NBC Selected’s in-depth coverage of tech and tools, wellness and more, and follow us on Facebook, Instagram, X and TikTok to stay up to date.