Our favorite Crest Whitestrips teeth-whitening kit is discounted from $50 to $28 during Prime Day 2021

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Prime Day 2021 is a great opportunity to give your pearly whites some radiating shine. With Crest's Prime Day 2021 deal, you can get Crest 3D White Professional Effects Whitestrips for $28, which is roughly $22 off its standard price of $49.99. This was one of our favorite deals we vetted during last year's Prime Day event and this time around, the deal is very similar.

Amazon Prime members can take advantage of the discount through the end of Prime Day (June 22), as can anyone who signs up for a new membership or renews a subscription.

Prime 30-Day Free Trial (medium)

Crest's popular Whitestrips are a frequent Prime Day highlight, with more than 100,000 of the product selling during the annual event in each of the last two years – and with a deal as sightly as what Amazon's offering for Prime Day 2021, it's likely it'll be quite sought-after yet again.

There's no doubt the product is a runaway success due to the large discount, but it's also because of its promised ease of use and effectiveness.

In our guide to the best teeth-whitening kits, the Crest 3D White Professional Effects Whitestrips came out on top as the best overall teeth-whitening strips. The kit comes with 22 treatments and is highly intuitive to use. You need to just peel the strips – one for the top teeth and one for the bottom – from the backing, and then stretch and apply them to your teeth. After 30 minutes, you simply remove the strips, and that's one session.

We found that results tend to show up in as little as three days, and after completing a full 20-day treatment, the results are meant to last for 12 months or more. If you just want white teeth now, the kit also comes with two treatments of 1 Hour Express strips that remove stains in one hour.

The best Amazon Prime Day Crest Whitestrips deals right now

The Crest 3D White Professional Effects Whitestrips are currently on sale for $28 through Amazon during Prime Day 2021, which is roughly $22 off its normal price of $49.99.

Be sure to check out our guide to the best teeth-whitening kits to see why we named Crest's Whitestrips as our top overall teeth-whitening kit, and why it's not only recommended by dentists but also great for anyone with sensitive teeth or gums.

3D White Professional Effects Whitestrips Kit (medium)

What deals were there on Crest's Whitestrips last year?

Last year, Amazon discounted Crest's Whitestrips to just under $28, which accounted for a total savings of $22 off the normal price (or 44%). This was the best deal we'd seen on the kits throughout last year and made the easiest and most effective teeth-whitening product a no-brainer to recommend.

Not only was it popular among our readers, but it was one of the most sought-after deals across all of Prime Day.

Why should I buy Crest Whitestrips?

The reasons why one should buy Crest Whitestrips are many. Not only are they an effective and easy-to-use solution for whitening your teeth, but they're also great for people with sensitive teeth, are widely available, and easy to procure.

During our tests, we found Crest's Whitestrips to deliver results in as few as four or five uses, and appreciated how intuitive the entire kit was to use. If you've been thinking about trying out a teeth-whitening kit for yourself, it doesn't get better than Crest Whitestrips.

Are Crest's Whitestrips a reliable teeth-whitening solution?

Yes, we found Crest Whitestrips to be a reliable teeth-whitening solution across various tests of our own. Even after just four or five uses, we started noticing actual results – and there are still roughly 15 more treatments after that.

Crest claims that the full 20-treatment kit can remove "14 years of tooth stains" and while it's impossible for us to accurately gauge whether that assertion is correct or not, we did notice clear, positive benefits of using Crest's Whitestrips.

3D White Professional Effects Whitestrips Kit (medium)

FAQs

What is Amazon Prime Day?

Amazon Prime Day is an annual two-day sale held by Amazon, featuring literally thousands of discounts on everything from fitness trackers and apparel to camping equipment, kitchen appliances, and clothing (among so much more). Amazon offers exclusive sales and discounts on some of its own popular products, as well, including its Kindle e-reader and smart home equipment like the Amazon Echo.

When is Amazon Prime Day?

Prime Day 2021 starts at midnight on June 21 and runs through the end of June 22. However, some of the featured deals may only be available during either the first or second day of the event, so it's smart to check back to Amazon's Prime Day landing page often as new deals and discounts will be posted throughout the event.

Do I need to be a Prime member?

Yes, you do have to be an Amazon Prime member to enjoy any of the sales during Prime Day 2021. If you haven't yet signed up for Prime, Amazon gives new users a free 30-day trial through its website.

What are the benefits of being a Prime member?

Aside from having access to the annual Prime Day sale, Amazon Prime members are also privy to a slew of benefits that make either the annual or monthly dues well worth the recurring expenditure. This includes free two-day shipping on eligible items (where available) and access to Amazon's extensive library of movies and television shows via Prime Video.

Prime 30-Day Free Trial (small)