I was very nervous at first, however, I jumped the gun and purchased the professional effects. Right now I have used 16 out of the 20 strips and I am so happy with the results. I used to have really yellow teeth and the treatment so far has lightened up my teeth at least 3 to 4 shades. It is very much noticeable to the point where I may not even need the extra 4 strips. The only side effect (as expected) is the teeth sensitivity (though no gum issues for me), which lasts about 3-4 hours post treatment and goes away after that. I rarely ever post reviews but I am very pleased with this product that I felt compelled to do so. Will definitely repurchase in the next few years.

I do not recomend this product since you will have sensibility after use it.I'm not saying that in a profesional bleaching you wont have it but imagine having sensibility for 14 or 20 days.That is ridiculous.I am returning the product because it is not worth,I want my money back

[This review was collected as part of a promotion.] I have been using Crest 3-D Whitestrips for years when I feel I need a boost in my teeth whitening routine. These strips give you that Hollywood smile within a few weeks of usage, but you will see a difference in just a few days.

I really love these white strips they work fast and leave me with minimal to no tooth sensitivity.. It is cheaper than actually going to a dentist and getting them done. I have recommended this to all my friends and family because it works so well.. Worth the price last a pretty good amount of time.

I started using Crest Professional White Strips last year. I whiten my teeth once a year. These white strips are by far the best product on the market. My teeth are not really stained, however, due to me being an avid coffee drinker, I choose to whiten yearly. These strips are awesome, and I have not had any sensitivity so far. Try them out, and I'm sure you won't be disappointed.

I have used Premium Plus White Strips in the past and have had AMAZING results!!! I decided it was time to whiten again after almost 2 years and decided on the Pro Effects.In my honest opinion they are not what I expected. I do not smoke, drink coffee rarely, never drink red wine, soda once in a while...nothing consistent enough that would stain my teeth...so I did expect more from these strips. That being said maybe I bought a bad batch of strips?!? I do have faith in crest products, just not very happy with this particular product.

All I can say is I am totally blown away by the results I have gotten so far. I am a die hard starbucks fan and it was starting to show by my smile. I would notice in pictures my smile looked dull and not very white at all. About 6 years ago I went and had my teeth whitened at the dentist and it could not even begin to touch what the crest white strips have done!! I am thrilled with the results after only 3 days and it's only going to get better! :) If you have ever wanted a whiter, brighter smile, you will NOT be disappointed with the professional 3D strips!!

[This review was collected as part of a promotion.] I’ve been using crest whitening strips for years! I wasn’t aware of the multiple options they have available with different levels of whitening (until now!). I have sensitive teeth naturally, and I try to stay on top of keeping my teeth bright and shiny - a dental freak if you will. Crest has been the one and only brand that gives me consistency, does not compromise my teeth sensitivity, and has others complimenting on my teeth. Literally nothing else compares. I’ve tried so many! I was so excited to see these pop up on my screen.

I love this product and don't know where to begin! I love the fact that it makes it look like you have had a professional whitening at a really great price. I don't get the sensitivity with Crest 3D like I have with other products. I can't be without these white strips!

Needless to say with no fanfare. Crest 3D White Whitestrips Professsional Effects are by far the most effective most whitening whitestrips on the market. They are easy to use, affordable and after you get through using them the compliments just keep coming in. People notice a difference right away. They will improve your self esteem and you will find that smile of yours again!