I had a hard time wearing these for the full two ours. I found the peroxide taste to be very strong! They worked well and I definitely saw a difference in the before and after. I did have two sensitive teeth for about a day afterwards. I'm not sure if this relates or is just coincidence, but about a week later, I have one tooth that is very sensitive to cold liquids. I would say that it's totally worth doing this once every 3 months!

I was delighted to have been sent this product for review...who doesn't want whiter teeth! Here are my thoughts:

PROS
- package was small and portable; easy for travel and not a lot of waste
- the strips were easy to apply
- I did NOT experience any sensitivity after my treatment and my teeth are generally very sensitive
- initially 2 hours seemed a relatively short amont of time for whiter teeth....

CONS
- after about an 1 hour I was ready to rip these from my teeth, I couldn't stand the feeling of these all gummy in my mouth
- the taste was quite synthetic/chemical.
- I personally didn't experience any noticable improvements in terms of whitening

If you currently use a whitening product then these are something which you will likely enjoy because they are quick and portable. If like me you don't have a lot of discolouration you likely will not notice any significant difference.

Overall, I would recommend this product to a friend.

CONS:
Two hours was a very long time to have these on your teeth!
My teeth ended up a little sensitive after using the product (though this went away after a few days).

PROS:
The strips stay where you put them and don't start to peel off like I assumed they would.
The results were good.. I was hoping for more but I suppose you can only expect so much!

The packaging and application is similar to other whitestrip products. Though these stay put and don't slide around at all - which is a bonus. Finding the time where I was be able to leave these on my teeth for 2 hours was a bit of a challenge and inconvenient.

My teeth are not to bad to start off with - but I am a tea drinker and was hoping this would give me a brighter look. I was disappointed with results - there was definately no "wow" factor! I barely noticed a change in the color of my teeth. Slightly - but nothing like this product promises. I have had the same results with other Crest Whitestrip products in one application - but the difference is that I didn't have the hassle of leaving them on for 2 hours. Also my teeth were left feeling very sensitive - more so than with previous products that I have tried in the past. Maybe a result for leaving them on my teeth for so long???

Overall I was not happy with the results and would not recommend this product - there are better ones out there.

So I was super excited to use this product! My teeth are normally pretty white, but I think everyones teeth could use a little help! Lets just say I was happy I ate BEFORE i put the strips on! Two hours is a lot longer then I ever remembered! Hahaha!
The strips stayed on super well though....it was awesome...and it made my teeth only a little sensitive! (this went away after about 2 days!)
The results were ok! Yup...just ok...nothing I would run home to tell everyone about...but when you are looking for a quick brighten up before a big event...these are perfect! No waiting 12 days & no slippery strips!
In my opinion they did just what they said they would....I just don't think I'd go out of my way to purchase them!

I think this is a good product to use to brighten your smile. The results were not quite as drastic as I was hoping for but it did definitely lighten my teeth a couple of shades. I did experience a bit of sensitivity the next day but it didn't last long. The strips stuck nicely to my teeth and I didn't have any trouble removing them. I do wish the bottom strip was a little bit longer as I have a very wide smile. The hardest thing for me was finding a 2 hr. block of time to whiten which is why this review is a little late. I didn't find them to be 'invisible' enough to be confident running errands with them on. Overall I was happy with the application and results of Crest Whitestrips 2 hr. Express and would recommend them.

I was sent this product to review, and I'm so glad I didn't spend money on it. This did absolutely nothing. I left both strips on the specified amount of time, I did everything right and there was absolutely NO difference. I'm not a heavy smoker, I don't drink dark wines and I have generally healthy teeth. SO disappointed.

Up until the last year or so I have always been complimented on how white my teeth were. Since I started drinking more coffee and wine I didn't get compliments as much. After trying Crest 3D whitestrips I can definitely see some of the results. Definitely something to use if you have a somewhere to be where you really want your smile to shine! The timing is a little tough but I think overall its well worth it!

First off, I am sorry for the late post. Part of why is the product. I found it difficult to make a window of opportunity of 2 hours where I wasn't eating, drinking or talking. There is only one thing I liked about the strips; they went on easily. After that (immediately) I had issues. I had a bad taste in my mouth; they become gel-like making me not want to talk (and my job is talking). They felt like they were moving and could come off at any point. In my before and after pic to see if there was a change, I really couldn't see one. I don't think they worked for me at all, so I will not be using the rest of the package in 3 months. Thanks for the opportunity though Chick Advisor!

I received the Crest 3D White Whitestrips 2-hour Express as part of the Product Review Club. I was very excited to be chosen to review this product. I have used the regular Crest Whitestrips in the past but I never follow through and use them each day for a whole 2 weeks. I like the idea of a one time 2 hour application. The strips stuck to my teeth well. I did notice my teeth to be whiter after the application. I find the strips more effective than any whitening toothpaste or gum. I did have some tooth sensitivity for about a day after use, so that was the only negative thing. Other than that I would recommend them to friends/family for an effective, convenient, cost effective way to whiten your teeth.