For a brighter smile without a trip to the dentist (and the hefty price tag to match), look no further than Crest Whitestrips. There’s a reason that hoards of people — from dentists to SPY editors and thousands of online reviewers — recommend them: they really work. And this Amazon Prime Day, from July 11-12, the brand’s 3D Professional Effects Whitestrips are 35% off. So if you’ve been thinking about whitening your teeth at home, consider this your go-to-goal moment.
Crest 3D Whitestrips, Professional Effects
Although the brand offers several different Whitestrips kits, this one includes 20 Professional Effects treatments (wear each one for a half-hour), as well as two one-hour express treatments as a bonus. The result is significantly whiter teeth in less than three weeks for less than $2 per treatment at the discounted price (we did the math). Avery Stone, SPY’s deputy editor, can attest that these really, truly work. Typically, she buys Professional Effects Whitestrips once a year for maintenance, and every time, she sees results: “When I’ve used this kit, I’ve gotten more compliments than ever on my teeth — they’re noticeably whiter after just a few sessions,” she says. “It’s hard to imagine a better return on investment, in terms of both price and the time spent wearing them.”
However, she adds, if you have particularly sensitive teeth or gums, you may want to take a one- or two-day break between sessions if you start to feel any sensitivity to heat or cold. (The good news? The brand also offers Whitestrips specifically for sensitive teeth, which are also 40% off this Prime Day.)