6-12 month shelf life
Customer Reviews:
Worthless 
Spent forty-five bucks and I had to wear them thirty minutes twice a day for three weeks, burned my gums, and had extremely sensitive teeth for… no changes what-so-ever. Not even the slightest lightening, and I followed the rules to the letter. There’s better ways to throw away fifty dollars.
FINALLY WHITE TEETH!!!!!! 
I decided to buy this product after a popup showed up on my screen one day for “Celebrity Sexy Teeth” which completely bashed Crest WhiteStrips Supreme. As I began researching it, I realized that there is no research to suggest that this other supposed whitener is any good and that individuals are even unsure of the ingredients coupled with the poor reviews it received.
Anywho, onto this GEM! I bought two boxes thinking that my teeth were so yellow that I would need two boxes to get the desired results. How wrong was I! After using the strips for less than a week, I already saw results.
I experienced minimal sensitivity, but I believe my teeth were more sensitive if I brushed them before using the strips which Crest does warn against. As such, I never had to skip a few days and my teeth are getting naturally whiter and I continue to receive compliments.
The box is not completely done yet. But when it is, i hope to post a before and after shot.
I could not more highly recommend this product as I feel the results are equivalent to what one would get by paying hundreds of dollars for an hour in the dentist’s chair; the results are just spread over a longer period. I feel that whitening over time, progressively, will cause people to wonder “Wow, there’s something different about you but I can’t put my finger on it!” Which I would much more prefer than “Oh wow, now your teeth are white!”
Very satisfied with product. BUT
The first time I bought this product at my Dentist’s office for $68.00 and I should have gone back to my Dentist and bought them there again. Within three days I saw results when I used the product from my Dentist. My teeth were much lighter, but also very sensitive. I took a break for a few days and then only used the strips once a day and then cut down to every other day and then cut down to once a week.
To save some money I ordered online from here. The product I received does not seem to work the same like the one from my Dentist and I am assuming right now that I accidently received the 6.5% instead of the 14%.
I emailed the company for the first time over one week ago and have not received a reply as of yet. I am disappointed!!! I guess I have to take another $68 and buy the Whitening Strips from my Dentist again and just take the $40 plus shipping cost I paid here as a loss. 
The Best of the Rest
I have tried many other crest whitening strips, but these are the only ones by far that really work. I am very happy with the results and will purchase again. I had little to no tooth sensitivity.
Simply, just a fantastic way to whiten teeth at a great price!
it works, but doesn’t last ;( 
I think I’m the only one who have this problem (if you agree or disagree feel free to respond back), but about 3 days after using the whitestrips.. my teeth starts turning yellow again (yes I do brush them day and night for at least 2 mintues). During the therapy, the thing works great, I see my teeth whitens very quickly. Though there are some sensitivity, I was fine with that. I applied it just as instructed, with only 3 days of skipping because my teeth was very sensitive. I wonder why my teeth turned color after the use of the whitestrips.
admin | 
11 30th, 2008| 
