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Brighten your smile with 31% off our favorite Crest 3D Whitestrips Kit

teeth whitening
Our favorite teeth whitening kit is 31% off on Amazon for a limited time. Jose Luiz Pelaez/Getty Images
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Even if you take good care of your teeth by brushing with a good whitening toothpaste and flossing regularly, daily wear and tear might still leave your smile looking less bright. At-home teeth whitening kits can help and be a great, affordable alternative to professional whitening treatments at the dentist's office. That said, they're not all effective, and some can cause teeth sensitivity, even after just one use. Luckily, one of our favorite options, the Crest 3D Whitestrips Professional Effects Kit, is on sale now at Amazon.

Crest Whitestrips
Crest 3D White Professional Effects Whitestrips Kit
$29.99 $45.49 Save 34%

Crest 3D White Professional Effects Whitestrips are effective, won't slide around during treatment, are easy to find at any drugstore, and have a less-concentrated formula for minimal sensitivity.

What we like

Check mark icon A check mark. It indicates a confirmation of your intended interaction. Produces results in four or five uses
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Recommended by dentists
Check mark icon A check mark. It indicates a confirmation of your intended interaction. Low peroxide levels

What we don't like

con icon Two crossed lines that form an 'X'. May irritate the gums

Our editors on the Reviews Team have tested plenty of at-home teeth whitening kits, and Crest's easy-to-use strips and dentist-recommended effective formula made it our favorite teeth whitening kit overall. While the strips are effective at whitening teeth over the course of several uses, their gel formula contains a lower amount of hydrogen peroxide than many other teeth whiteners, making it less likely to cause tooth sensitivity. The strips comfortably adhere to teeth using Crest's "Advanced Seal Technology," so you can even drink water and go about your day while you wear them.

Each kit comes with 20 sets of strips that you wear for 30 minutes a day. As a bonus, the kit also includes two sets of Express Whitening Strips, which you can wear for one hour at a time to see visible results immediately, so they're perfect for when you have an event or are being photographed and want to have some extra dazzle in your smile. The strips are super easy to use; simply peel off the backing, stick them to your teeth, and wait. Just be sure to keep the strips off of your gums to avoid causing irritation.

With over 72,000 five-star ratings, it's clear this whitening kit is also popular among Amazon shoppers. "I've tried a few different whitening methods over the years, from pricey professional treatments to messy gels, and honestly, Crest whitening strips are my absolute favorite. They're just so convenient," said one reviewer. "I saw a noticeable difference after just a few days, and after the full course, my teeth were significantly whiter. I'm talking about a legit, noticeable brightness that gets compliments. And the best part? No sensitivity!"

Some shoppers even said the Crest strips gave them professional-level results. "I compared my results with a friend who got professional whitening. What he got was equivalent to about three to four sessions with these strips, so they're definitely worth the money," said another reviewer. "I've gotten compliments from friends and my dentist after using these. I've used gel and UV self-applications in the past, and these are way better."

With the current discount on Amazon, the Crest Whitestrips Kit is 31% off the original price. Add it to your cart now for just $30 while the deal lasts.

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Disclosure: Written and researched by the Insider Reviews team. We highlight products and services you might find interesting. If you buy them, we may get a small share of the revenue from the sale from our partners. We may receive products free of charge from manufacturers to test. This does not drive our decision as to whether or not a product is featured or recommended. We operate independently from our advertising team. We welcome your feedback. Email us at reviews@bjinnox.com.

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Jennifer Gonick
Jenn Gonick was the Coupons and Deals Fellow on Business Insider’s Reviews team. A savvy online shopper, she’s always on the hunt for the best sales and promotions.ExperienceJenn joined the Business Insider Reviews team in early 2025, where she reports on the best coupons and deals available. Prior to joining Business Insider, she worked in PR, branding, and social media. Jenn began her editorial career at Prevention, where she covered product recommendations, shopping news, celebrity news, and health and wellness. She also played a role in covering major sale events, including Prime Day, Black Friday, and Cyber Monday.Why you can trust JennJenn knows not every deal is worth buying and doesn’t recommend anything she wouldn’t take advantage of herself. Her previous experience in PR and branding has also given her an eye for spotting misleading advertising language, so she always knows how to tell when a discount or coupon is the real deal.EducationJenn graduated from George Washington University with a degree in English & Communication and a minor in Applied Ethics.Expertise
  • Deals
  • Coupons
  • Major sale events to watch out for
  • Beauty and style
  • Fitness, health, and wellness
Outside of work Outside of work, you can find Jenn frequenting her favorite coffee shops and restaurants, trying out new recipes, or browsing the local bookstore for her next read. She is based in Brooklyn.