Careful not to use too much, while they whiten the enamel can become destroyed through everyday prolonged use. I do love them though always have worked well.

I have saved so much money with this at home strips they really do whiten. I would only use them as recommended and would not leave them on for any longer than that because they will cause sensitivity like any whitening product.

These are okay I guess. It probably works for some people but it did not work even the slight for me. It also tasted horrible and I couldn't get the taste out for a long time. I'd recommend people giving it a try but I wouldn't use it again.

These work really well for an at home teeth whitener. My friends used to compliment my white smile all the time when I was actively using these. They are harsh on enamel though so I took a break

It's great! I use it for dances, interviews, graduation, and photo shoots. It's painful so be sure to take pain medication beforehand but overall it's affordable and can be easy to use.

Comfortable & effective. I use one daily for a week and then once/twice a week after and cycle through that a few times a year. I don't have discomfort with them unless I fall asleep with them on and wear them all night.

These teeth whitening strips are my favorite! Because of my love for coffee and tea, my teeth are exposed to lots of caffiene and turns yellow easily. However, these strips have helped keep my teeth pearly white! :)

The strips were uncomfortable at first but you get used to them and they are not so bad. Gave me an even white smile in the matter of 2 weeks but did lead to increased sensitivity.

Although it's a process to put them on your teeth, it is so worth it. It has made my smile 10x whiter and my friends & family can notice. Although it's pricey, it is totally worth every penny! I would recommend trying these out!

I have used crest 3D whitening strips maybe twice within the last 4 years and my teeth are still very white! It stung my gums a little but at first but went away after a few minutes. I will buy them again when I feel the need to touch up!