[This review was collected as part of a promotion.] Received this to review. I have sensitive teeth, and this product did not disappoint. They were very easy to use and seemed very effective at whitening my teeth. I have always been a tea and coffee drinker, and this has helped give my teeth a white appearance

I love Crest 3D Whitestrips....they really are far better than any of the whitening toothpastes out there. They are worth the time, money and effort. Even my dentist's office recommends them. They really add the extra shine, especially for tea and coffee drinkers. Thanks Crest.

The crest 3d white strips have been the amazing key to my beautiful bright smile. It is my holy grail. Whenever I have a special occasion or an important meeting to attend, all I have to do is slip these on my teeth for about thirty minutes and BAM! I feel confident and glamorous . It is worth every penny!

I love professional effects, been using for 4 years, use less and less every along with the mouthwash and paste . Introduced all to my grand daughter 2 years ago. She lives in the country and has well water. That alone tends to yellow the teeth. She now has the smile of an angel and the personality to match. Thanks for making such a great product. The whiter teeth gave her more confidence in her appearance and now at the tender age of 15 1/2 she is more beautiful and confident than she has ever been.

Purchased the original Crest Whitestrips some years ago and was pleased. I am not a smoker, coffee or tea drinker and only experienced minimal whitening with the 3D Pro Effect strips. Not remotely close to a professional whitening.Frankly one could probably achieve the same results from a whitening toothpaste!

Crest 3D whitestrips didn't cause tooth sensitivity like other at home treatments that I've tried in the past. Using the strips, toothpaste, and rinse, I saw a whiter smile after within days that hasn't faded. I'd recommend the 3D products to friends and family, and they're a great value.

I use one of these kits typically once a year. I am currently using a kit and am enjoying the whitening effects as much as before. However, the strips don't fit my teeth as well as they did last year, and I can't tell which is for upper and which is for lower. It doesn't say anywhere on the box or on the directions. I've tried both on upper and lower. I settled on the longer narrower one for the bottom and the shorter wider one for the top. It's awkward. I have a harder time getting it to stay put on my lower teeth.

Years ago I bought crest professional whitestrips 30 min a day with advance seal,( not the 3D) It done exactly what it said, I got so many compliments and for a very long time, but when I tried to purchase again, It only sold in 3D professional with advance seal and it was nothing like the original and since I have bought another 3D professional this time with flex fit and it is very stiff (like it's old) and barely sticks with little to no results and yes I peeled off the plastic seal, pretty much done and not satisfied at all.

[This review was collected as part of a promotion.] I'm the number 1 fan of these Crest whitening strips. They are effective and a good price. I love that I can do it from the comfort of my home, and people ask what I use because my teeth are white. This kit is super effective, the best package for your whitening teeth, like the professional whitening Yes, I highly recommend it. Thank you

I used the kit, and had no difference occur. I was very surprised because many years ago I used one of the first kits in this product line, and noticed results. I don't smoke, or drink coffee. Only drink red wines or tea occasionally. Adhered to teeth well, and stayed put. These strips are easy, and convenient to use.