Crest says its express whitening strips contain a 10% concentration of hydrogen peroxide. For context, the original 3D Whitestrips, which have been shown to work, reportedly contain only 6% ...

Plus, according to several reviewers, they work just after a few uses. The Crest 3D Whitestrips Professional Effects Plus teeth whitening strip kit contains 20 teeth whitening treatments each with ...

To round up the best teeth whitening kits, we asked oral care experts for their input and tested several top options ...

The Crest 3D Whitestrips Professional Effects Plus teeth ... I was skeptical at first but these actually work Scarily well, they do make my teeth a little more sensitive right after using and ...

Crest 3D Whitestrips are our pick as the best teeth whitening strips overall because our tests determined that they had the best results with the most effective active ingredients. If you have ...

Crest Whitestrips are effective and safe on enamel ... "noticed a difference after [the] first use." These "100 per cent work," says another reviewer. They are "amazing," and you will see a ...

Whenever Crest Whitestrips go on sale ... It requires little to no work besides remembering to apply it once a day for 30 to 60 minutes. People with sensitive gums or teeth don't have to worry ...

For a limited time only, you can save 50% on one of our favorite kits — the Crest 3D Whitestrips Sensitive, which is at its lowest price in three months. (It currently retails for $49.99 and is ...