The BEST teeth whitening kit!! I saw results within 3 days of using, my teeth were instantly whiter! It's a little bit on the expensive side, but very worth it considering the results. I purchase this product all the time! I would recommend this product to anyone!

I started using these strips last year after seeing my teeth fade. After a few uses i started noticing a difference. I completed my box and my teeth were definitely whiter. It's not too expensive and it's honestly worth the money. I will definitely keep purchasing.

I find many options in whitening strips to be a tad expensive. When using I have to make sure I will not need to talk for awhile. Any movement talking etc. tend to move the strips and they begin to raise up and are not as effective. Product does seem to whiten teeth when used.

I honestly loved these at first J began seeing a difference although I hated the texture and taste of it. But I have a cap on my tooth because I chipped my tooth a couple years back so underneath the cap is exposed nerve making it very sensitive. The paste basically stripped the layers of my cap away till I could feel the exposed nerve 24/7. It was hell and I then had to get the cap removed and get a new one. Maybe the package says this somewhere or I was being really dumb but just be careful and know what ur dental history is like. I hope this helped!!

First I was skeptical about using the product , but after I started seeing results after the first week I became obsessed !!! I bought like 3 boxes in total , I started using the product in the beginning of April now it's May 18... Now don't get me wrong it really depends on the shade of your teeth and how long the process takes .14 strips come in each box .. I don't think my teeth can get any more whiter but this product is just miraculous!!!

This was the first product of this kind that I tested and needless to say that I did not need to look further. I took pictures after everyday that I used this and there is already a very noticeable difference between the first day and the third. I used it once every week and for an hour. It left my teeth sensitive, but not too much and it was probably because of the amount of time that I used the strips.

These are amazing white strips for when you don't have the time, luxury, or money to spend on professional whitening. I had very low hopes considering that I had tried some crest white strips in the past and they didn't seem to do anything to noticably lighten my teeth, however this professional effects kit is a whole other story. I have used them once or twice before going out and each time I have gotten comments on how white my teeth are from friends or dates. It should be known that I have bleached my teeth in the past with an in-office procedure however these are wonderful for touchups and keeping my pearly whites just that. I have noticed no sensitivity when I wear them for the instructed time.

I am so excited to share my results. I was nervous to try the whitening strips but curious as well. I am now convinced I made the best choice. Thank you Crest I was already a loyal customer. Now you've got me for life . I know the products you provide are the best And I'll make sure to tell the world!!!

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 :'(

The OG since day 1. Only white strip i trust to actually work. Makes teeth look like they just got freshly cleaned from the dentist. Only cons are that the price isn't as affordable as other brands and that the product makes my teeth painfully sensitive.