Definitely do the job if used consistently. However I would not recommend these to people with sensitive teeth. I could not use them consecutively but had to do every other day. These allowed me to avoid the sensitive teeth feeling.

it works amazingly well! i use it about one a week, the only downside is that the product itself leaves my teeth very sore and painful, but overall very effective!

I did enjoy using this product. It did help whiten my teeth. The only thing I did not like about this product was that it was very hard to keep it placed on my teeth the right way. I do not think this product is worth what you pay for it.

It didn't have a big whitening affect on my teeth. They were partly uncomfortable and left my teeth sensitive. However it did whiten my teeth a bit so I have to give it that.

I love these Crest Whitening Strips! This is the only brand of whitening strips I will use! I find they don't make my teeth too sensitive and they do a great job of whitening my teeth in that time! They're great!

this helps whiten your teeth and it works but not as much as everyone would assume. you could use the whitening toothpaste as well for a better outcome

These work really well and results are noticed right away after one use. They make it quick and easy to whiten teeth before events and to just maintain the whiteness

I always get asked how I get my teeth to be so white. People can't believe it's done at home when I say it's crest 3D whitening strips. They're super easy to use and are completely fool proof.

I've used these off and on for 5 years. They're my go to. They seem pricey, but you can see the effects after just one to two uses. And they stay white! Would recommend for anyone. Warning: your teeth will be sensitive

Since using these products, my teeth have definitely seen improvement. I have sensitive teeth but these really don't bother them and produce noticeable differences!