Crest 3D whitening strips are easy to use and works really well. After about a weeks worth, you could start to see the difference. Although it did not give me sensitivity, some of my friends did get some sensitivity, so be aware of the pros and cons of it. Overall very good produce and would recommend it!

This product has outrageous results. I try to use them at least once a month because I do enjoy a good cup of coffee as well as red wine and this product erases all the darkening that occurs. Thank you for making this product available to the public!!!

My teeth have always been fairly white, but I’m an avid coffee and wine drinker so they’re starting to lose that sparkle. I’ve never used whitening strips before, but thought I could use a little help getting that fresh, whitened look back. Used one set and they’re good as new & look very natural! So happy with my results. They didn’t immediately look whiter after taking them off, but they did when I woke up the next morning.

I bough this product over a month ago and gave it to my son who’s a heavy smoker. His teeth were yellowing and had stains from to tobacco forming where he held his cigarette. After only three days his teeth were noticeably whiter. After 7 days the tartar stains were greatly diminished. He’s loving his new smile. I also purchased a toothbrush to help with his overall oral health.

I had used the original whitesrtips before and didn't really notice too much of a difference and they slid off very easily. I have just finished my first box of Crest 3D Whitestrips Advanced Seal and must say I was VERY happy with my results. I noticed a difference in the first use and every day after that. They did not slide or come off my teeth at any time! I would recommend this to everyone I know! It is definately worth it.

Used the entire treatment over the course of 20 days. Saw little to no improvement; even those at work and home could not tell the difference. What really bothers me is as a college student looking for job interviews, these strips failed to provide a sparkly, white smile as I had hoped. I would NOT recommend these to others :'(

I used the Crest 3D Whitestrips to whiten my teeth before I went on my cruise and they worked great and were so easy to use and taste pretty good. I could still talk and do things while they were whitening my teeth. Loved it and will use again if I need to.

I remember using Crest Whitestrips back when they first came out. Completely satisfied. This time around not so much, which was a disappointment since I expected similar results. After the first box did not work, I decided to go ahead with getting a second box through Crest, as recommended. I used the product 30 minutes once a day, and did not use immediately after brushing, as recommended. It did make some difference, but my teeth still have a yellow tint.

[This review was collected as part of a promotion.] As a coffee drinker and smoker, i don't have the best-looking teeth I'm ashamed to say 😔 but these Crest 3D whitening strips have made a difference! This was only over 10 days! I love the difference it has made, i smile more with my teeth and feel more confident!

My fiance and I used these before our wedding. I only used them twice and I still got a lot of comments about how white my teeth looked. We bought the professional effects and planned to split them, 10 days of treatment each, which made it a good value for us.