The Best Early Amazon Prime Day Deals to Shop, From Sex Finds to Beauty Picks

Crest 3D Whitestrips Sensitive At-Home Teeth Whitening Kit ($26, originally $50)

Available in a pack of 18 treatments, these strips will gently, safely, and effectively remove stains. Not to mention, they're formulated to handle sensitive teeth and are enamel-safe, so you don't have to worry about them hurting. And at almost 50 percent off? You really can't go wrong. Read our Crest Whitestrips review for more.

Editor Quote: "After just four treatments, the difference is already remarkable. The 'before' image on the left and the 'after' image on the right clearly show the noticeable change. And I've barely made a dent in the box, with plenty of treatments left." — Marisa Petrarca, contributing shopping editor