Good price, not enough time to fully evaluate for an accurate review. My Dentist highly recommended this product and advised that Sam's Club offered it for a low price.

We’ve been using these for years and have never had to pay for teeth whitening professionally! They work just as well or better!

Keeps my teeth lighter than they would for all the coffee and tea I drink. I whiten my teeth at the dentist before but these strips do a good job without the expense. I do occasionally have some difficulty with them staying in place but not often.

Definitely whiter teeth. This kit has 20 days everyday and then 11 maintenance strips once monthly for a hour. I’m on day 13 already and my teeth are so much whiter even the lower part of my bottom teeth. This kit was a great idea and works well. Definitely recommend this kit.

My dentist recommended I try Crest white strips. They fairly expensive so I checked Sam's and they were $49.95 for 20 sets you use for 20 days and 11 sets you use once a month. They work. My teeth are starting to look whiter after 5 days. I recommend them. Great value.

I must admit, I was pretty skeptical that these strips would really work. I tried them just out of curiosity, but they not only worked, but worked so well--people were asking if I'd had my teeth professionally whitened.

The strips work, but can be tricky. You need to dry your teeth as much as possible before using the strips and they don't go over your molars. They do brighten your teeth quite a bit though.

Works well, not as white as I hoped but definitely an improvement. The top stayed in place the bottom did not and were difficult to apply.

Helps to whiten teeth. Seems to work

1. Crest 3-D white stripes are expensive per each use. 2. They were difficult to use, and I repeatedly had problems trying to keep the bottom strip on my teeth. Three times the strip would not stay on my lower teeth, and I had to throw it out making each treatment even more expensive. 3. Each time I use the crest 3-D strips, my teeth became uncomfortably sensitive and remained so for about two days. 4. In fairness, I do have acid erosion on my teeth that could have contributed to the sensitivity. However, I have used other whitening products that did not cause the sensitivity that I experienced with crest 3-D strips. 5. I won’t buy these strips again and am considering returning them to the store.