Bests & Worsts Reviews from Amazon

As with any whitening product, there will definitely be some tooth sensitivity. Brushing my teeth with sensodyne and only using the strips maybe once a week solves that problem. Aside from that, these things are amazing. The picture I included was right before and right after one of the one hour treatments. I highly recommend! I will definitely keep using these, since I will always have a problem with things that yellow my teeth (coffee, tea, wine, etc.)