I have tried everything, but it has been awhile since I have gotten my teeth cleaned, due to health reasons and "time just flies by" at this stage of the game. I am on my 4th strip, and with each time, I kept on seeing more and more whitening. Very pleased at this point. Hoping to get to where I want them to be...fingers crossed

These are great. I just hate how long they take. And you also can't eat for a certain time after and I feel like the whole time portion of takes up a lot of my day, so my piece of advice is to manage your time better if you want to use these. Overall: 9/10

I have used this product in the past and it worked like I would have imagined I was vary happy. I stopped using it since it was a little expensive for me. I recently bought this product again and I see almost no results then before. I don't smoke or drink coffee and expected the same results as it used to provide. Maybe there something wrong thins time with the product. I do wish to have my money back or a discount to buy another box and see if there is something wrong with the product or just the one I bought.

These strips work well. Unfortunately--and therefore the three star rating--the box I bought contained two dried and unusable strips. That's twice this has happened. Hey, Crest, work on your quality control. Then you'll get your fourth and fifth stars.

Love love love it ! I've been using it for about a month and it seems to be working so far . I will say it doesn't work as fast as you'd hope . But I feel like it's to expensive for the slow results . But it does work and that's what counts . Crest 3D White Whitestrips 1 Hour Express Teeth Whitening Kit

I absolutely love my Crest 3D White Luxe Professional Effects Whitestrips Teeth Whitening Kit I use this when needed. You can tell the difference with one time used. I've been using this for years and and very effective. Please a reminder don't let it sit too long because your teeth can get too sensitive. I leave it on for about 20mins.

This is my secret to super (but still natural looking) white teeth!! I have sensitive teeth so I could only use them once every three days but it was very worth it. The last time I used them was August of 2016 and my teeth are STILL white and I receive multiple compliments. There are higher in price but they are worth it!!

I love them, 3D WHITE WHITESTRIPS PROFESSIONAL EFFECTS they do work! The only thing that I found wrong was that on occassion I would pull the whole plastic piece off instead of just the strip and then it was a pain to get the strip off. But it was worth the hassle. WOW these things work. The BEST!

I have tried SO many whitening products but none of them have even remotely compared to Crest 3D Whitening strips. I try hard to keep the nice white that you get after being at the dentist, but being a coffee drinker that can be difficult. But Crest whitening strips are up for the challenge and do not disappoint! 1000/10 recommend this product!

Such a great whitening strip! Using these my teeth have gotten significantly whiter! I tend to have sensitive teeth and these don't bother me at all! People ask me often how I keep my teeth so white so I always let them in on my secret! Crest Whitestrips for the win!!