i like these but they make my teeth sensitive and also it feels kind of weird to have it in your mouth for so long, but i do notice visibly whiter teeth and i prefer this to dentist whitening

I tried these twice. The first time I saw an instant difference in my teeth. The second time I tried this my teeth were hurting so bad. Never tried them again after that!

Not sure exactly which product I get from Crest 3D white strips but all of their product are amazing and can always tell a difference within a couple of days! Always get compliments on how white my teeth are.

Crest is my favorite toothpaste brand, and this extends to the whitening strips. I have bought these several times and will continue to do so. They are very effective, I use them every day for about a week and then about once a month afterwards.

I have been using Crest 3 D whitestrips for less than a month. By my 4th treatment my yellow teeth were WHITE! I smile all the time now. I haven't smiled with my teeth showing for over 20 years!

Shocking results saw results in thirty minutes of them being much whiter than before.These stripe are amazing for people who tend to have yellow teeth definitely recommend but I also recommend to brush your teeth every day!

This is the first whitening kit that I have been used. It is really effective in making your teeth white. But it also makes my teeth sensitive after I used it.

I always feel like these just are okay. The cost isn’t bad but do my teeth look whiter? Meh kinda? They do make my teeth slightly sensitive when using them.

I use these strips about twice a year like clock work and I always get compliments on how white my teeth are! They are my favorite whitening product!

These hurt my gums a little bit but that could just be me!! I noticed results somewhat fast, I was surprised!! Would recommend if you don’t have sensitive gums:))