I got at least 5 shades whiter, an hour may seem like a long time but I just do chores and homework, cooking etc and set a timer. Bam! White teeth. Barely any sensitivity, if at all.

This product is very good. I used it a few times and was very happy with the results. I always get compliments about my white teeth. Now that I used this product I love my smile. This is the best over the counter whitening product.

When coffee, tea, and life keeps trying to darken your smile, use these little miracle strips to combat that by brightening and whitening your teeth! Smile Big and Bright with Crest 3D White Whitestrips! :-D

First time I tried them my teeth were yellow from coffee and tea drinking you could really tell the difference got many compliments on how white and bright my teeth were

On a diet of coffee in the morning and wine at night, this momma loves that in just a short time, I can be on the road smiling with my beautiful pearly whites!

I haven't try Crest products ever and i would be happy if i get chance some day to try it. Here in Europe is to heavy to find some white strips so i would be blessed if i try it and if they work on my teeth ;)

I bought and used these Whitestrips Professional Effects and was not disappointed. They worked quite quickly and made a noticeable difference in the whiteness of my teeth. This product certainly does what it says it will! :)

The picture has changed from what I ordered! I wouldn’t have ordered if it was just in a cardboard box instead of 2 boxes like it was originally shown. It with 40 but isn’t 40 in the original package??? RIP OFF

I really loved the Crest 3D products. I could tell a difference in the color of my teeth in just one use. I would recommend this product to anyone. Great Product and worth every penny!

[This review was collected as part of a promotion.] I personally love using crest teeth whitening. i’ve been using it for years and I feel like there has definitely been some difference. I would recommend