Caroline: That active ingredient is hydrogen peroxide, which is about 25% of Zoom's whitening product. After some research online, I found that common drugstore whitening strips, for example ...

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

Obviously there are other whitening agents and alternative ingredients out there, but experts say it’s best to avoid trendy, gimmicky products like LED whitening lights or charcoal, which might ...