So I was a bit scared at first about the sensitivity part... but it wasn't too bad. This is the first time trying one of these and I must say I am IMPRESSED.
This stuff does work and work well. Would love to try some more... have to see how long this last.

You betcha this is one to try, I swear my teeth look 2-3 shades lighter and brighter, great news for this 3 plus cups of tea a day plus maybe some wine. Worth trying before you pay over $100 for those of treatements

I received this as a ChickAdvisor Review Club member. I finished my box last night and all I can say is WOW WOW WOW! These come with a rather steep price tag but when I compare it to what you'd pay for a professional whitening treatment to the same level, it's a fantastic value.

Did these noticeably whiten my teeth? Absolutely. I am more than satisfied with my results. I've used the 14 day strips in the past and I believe these whitened better. Not a WHOLE lot, but enough that I notice it.

I want to address sensitivity. Yes, I experienced it, and for the first 2 days I will admit it was about a 7 on a scale of 1-10 for pain. I took a tylenol and got past it. By day 4, I noticed a big improvement, so I would recommend that if you do have it, to push through if you can because it seems like your teeth somehow get used to it. At least they did for me, and I sometimes experience sensitivity anyway.

Overall I would definitely recommend this product, they definitely work as promised and now I am interested to see how long-lasting the results are.

I recieved the Crest 3D Whitestrips Intesive Professional Effects as part of the Chick Advisor Review Club.
The first thing I had an issue with is to find the 2hr daily for 7 days to wear them. I work 12 hr shifts so it was hard for me, however if I only worked an 8 hr day I think it would of been fine. I did not want to wear them at work because eeven though they stick really well I found myself talking a little funny. The other thing I had an issue with was how it made my gum line very tender and almost burned.

I did see a difference with this product. I believe if you can get over a bit of gum abrasion and the inconvienence of the 2 hr time daily to wear them, it is definately worth it. They do have the advanced seal as they claim to have; I had no issues of them slipping or falling off.

I would highly reccomend this product to anyone who is serious about whitening thier teeth as this is by far the most superior product on the market at this time.

I received these Crest Whitestrips as part of the ChickReview program. I've tried regular Crest Whitestrips before but not these Professional Effects. Overall I was satisfied with the whitening power of this product. I could notice a significant amount of whitening. However, my teeth did feel sensitive while wearing the strips and for a few hours afterwards. But if you are considering a professional whitening these could be a great choice.

I received these as part of the product review club from ChickAdvisor. I'm glad I did not pay the $69.99 retail price tag. They did whiten my teeth but not to the level they claim to, and these made my teeth SO sensitive, that sometimes even breathing cool air through my mouth hurts. I found that while I had the strips on, my mouth felt almost numb. It was just not a good experience overall, but I am glad I had the chance to test them out.

I had received the Crest 3D Whitestrips through the Product Review Club (thank you!). I have used whitestrips before with good results but have never tried the Intensive Professional Effects variety. I used them the first time for the recommended length of two hours in the afternoon. After one use, my teeth were noticibly a bit whiter. That night I had trouble sleeping because my teeth were SO sensitive that when air passed by them it hurt. I had experienced sensitivity before with Whitestrips but it was not this intense. Using Sensodyne toothpaste helped ease the sensitivity. A tip for people experiencing sensitivity is to do a treatment every two days, but I continued with once a day as I had to post the review. By the end of the week, my teeth are very very white and bright. They were not too stained before but I am so impressed with the whiteness and the change from the Whitestrips. I have never had a professional whitening treatment done but the results I achieved were very drastic and I am very happy. The increase in whiteness is definitely greater than using other Crest Whitestrips which are not the Professional Effects variety. If you are looking for a drastic whitening experience I would definitely recommend these. A tip to keep them sticking to your teeth for the two hours is not to brush your teeth right before and dry them off with a kleneex before applying the white strips.

I received Crest 3D White Whitesrips intensive as part of the product review club. I am on day 4 now of a 7 days treatment and I've definetly noticed results. The strips stay on very well and are easy to apply. I do find that 2 hours is a long time to keep them on but I've made them part of my morning wake up routine so the time goes by fast. My teeth were sensitive after the first treatment but are fine now. I apply the strips before I brush my teeth and that helps a lot with pain and sensitivity. They are expensive but it would be a lot more costly to have my teeth whitened by a dentist so it's worth it. I will be using this product again, thanks for the opportunity Chick Advisor!

I received the Crest® 3D White Whitestrips Intensive Professional Effects as part of the Chick Adviser product review club. Ive been waiting for a good product to use to whiten my teeth, but found most to be expensive. This product is on the pricey side, as I have checked through Shoppers Drug Mart, but it is worth every penny. After the first session, I already noticed a difference. I missed a day and continued on as normal, and received amazing results! I've really noticed a difference. I even took before and after pictures for my own personal benefit. I've gone up a few shades of white. Everyone at my work has noticed and complimented me on my smile. Its like a boost of confidence, I love it! I will definitely buy this again, and it may end up in my Husbands stocking for Christmas.

I received this to try out from chick advisor and at first was very excited as i have been wanting to whiten my teeth for a while. I found that they didnt stay in place too well. I didn't see truly great results like i think i would have seen had i gone to the dentist for teeth whitening. After using these my teeth were sensitive and sore. To me personally they are definetly not worth the money that you would pay in the store. I take very good care of my teeth and they barely seemed to get any whiter. Thanks for the free sample. Was interesting to use but glad i didnt pay for it.