The early Prime Day deals are here, and Crest Whitestrips are part of the drill. The brand has a few kit options to choose from, in addition to a smattering of coupons on other items like toothpaste and mouthwash. Most notably, there are the 1-Hour Express Whitestrips, marked down to $31.99, which boast over 1,500 reviews as of press time. If you want to more closely mimic the in-office experience, there is the Crest Whitening Emulsions Leave-on Teeth Whitening Gel Kit With LED Accelerator Light, to help achieve your brightest pearly whites ever.