These whitening kits can keep your smile fresh for up to six months.

Save 40%: Use code Y2K to save 40% on Crest 3D Whitestrips LED whitening kits through Sept. 20.

When I was younger, I used to beg my mom to let me use some of her Crest whitening strips on my teeth. I was in elementary and middle school, so I definitely should not have been whitening my teeth — and she wisely did not let me. But I always thought the whitening strips were so cool, and I wanted to have a nice, shiny smile.

Fast forward, and Crest has advanced its whitening tools to include an LED light that activates the whitening strips to give an even brighter smile. As of Sept. 9, these Crest 3D Whitestrips kits are on sale for 40% off when you use the code Y2K.

Crest has a few different variations of its whitening kits, including one for sensitive teeth. All of the strips use enamel-safe ingredients to prevent damage to your teeth. You won’t see the same results as if you got your teeth professionally whitened by your dentist, but you can still give your smile a little boost with an at-home kit.

Grab a Crest 3D Whitestrip whitening kit, and use code Y2K to save 40%.

Save 40% at Crest

Credit: Crest

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