I was so excieted when i recieved this as a birthday gift and i tried them and followed the instructions to a T, but unfortunately they made my sensitive teeth feel brittle and it was painful to eat drink speak and sleep, so its not really a good product for me.

Ive used these strips twice in the past and I love the results!! WIthin a couple days I notice a difference and although your teeth DO get sensitive, its not unbearable to deal with! At least not for me it wasnt. The only downside is if you want lasting results, you have to keep up for the whole line of products and use them religiously..I know its all way too expensive for me to keep up!! Although my teeth were never disgustingly yellow, they have now returned to their original colour..booo! :(

I tried this a long time ago and it worked amazingly. After 3 years I will try it again. Maybe today!

I was excited to get this product in the mail. I've always been complimented on how white my teeth are but since the last two years of drinking coffee and red wine, I feel they aren't as white as they used to be. After trying Crest 3D whitestrips I did feel that there was somewhat of a difference and I would definitely try these again in order to maintain white teeth.

These Advanced Crest Whitestrips are wonderful because they stay on your teeth and you don't taste the formula on the strip, like the previous ones manufactured by this brand. They work quickly and you do not fail to notice a significant difference after your first strip! If you have sensitive teeth, please keep in mind that by using the Advanced Seal, your teeth will be sensitive 2-3 days following the treatment. Use Sensodyne toothpaste after treatment, if the discomfort is too much.

Well, I learned that my teeth were sensitive using these strips. I had used Listerine strips, GoSmile, and the regular Crest Whitestrips in the past, without any issues. But these made my teeth hurt. Badly. And it lasted for a few days after the first application. If you're not sensitive in the tooth area, then these would probably work well for you...I did notice a small amount of whitening after the one-time usage.

I have tried some of the previous versions of white strips the original as well as the 7 day version both worked well in terms of results btu I found I had major tooth sensiivity so i really had to space out the way I used them. Also it drove me crazy that they would slip and slide all over my mouth. i was pleasantly surprised to try these strips. the are thin and feel like scotch tape on your teeth. They don't slip and slide. Still have tooth sensitivity, but the staying power is much better! I won't go back to the old ones now :P

ive previously used crest whitestrip original and i HATED how the strip would move up and down my teeth and the gunky bleach stuff would be all over my gum behind my teeth . i love the results but hated using it . so as soon as i saw that this grips onto the teeth better, i had to get it .

i havent whitened my teeth in almost over a year so i bought my third box of this a few days ago . each box comes with $7 off coupon inside ! shoppers had them on sale for $27.99 so i ended up getting it for only $21.99 !

i use this everyday while im in the shower . i would have it on for the whole shower and while i get dry and half an hrs already up . after 7 days, i can definately see the difference . last time ive used this, i used it for 7 days and after that i would use them once a week with a second box . i got so many compliments and i dont even have nice straight teeth !

Well I am torn about this product because I have crowded teeth on my bottom row. The strips adhere to the teeth very well- they're actually kind of hard to remove- But it doesn't whiten ALL my teeth because the strips are so stiff I can't get them to bend in between my teeth as I can with the regular crest strips. If you have perfectly straight teeth and don't like how the other Crest Strips bunch and roll up in your mouth, than this IS the product for you. How ever if you have any type of crowding in your mouth i would go with the regular strips OR get the whitening gel with mouth piece to ensure all teeth whiten the same to the same colour!

i had always used the regular crest whitestrips but havent in a few years, recently i noticed my teeth getting yellow so i decided to go and get some, but instead i picked up these. i was so amazed, i was expecting them to be like the regular ones, that slip, slide and leak the bleach into your mouth. i couldnt taste these at all and when i tried to remove them, they stuck so well it was hard for me to get them off my teeth! now, im not sure if my teeth are easy to whiten, because i have heard some people say that these hardly whiten their teeth at all. these make my teeth VERY white, after using them for 5 or 6 days, my friend commented on how amazing and white my teeth look. i am a smoker, i drink 4 or 5 cups of coffee or green tea a day, and a few glasses of red wine a week. the only thing that i have to say is bad is that they make my teeth very sensitive, but i am willing to tough it out for the 2 weeks that i use them, i have recently switched my toothpaste to sensidine, so i am hoping that helps :)