Thanks Chickadvisor for letting me try out this product for free! I had never tried Whitestrips before, so I was pretty excited to see how I liked these. One thing that I want to mention is that having the strips on your teeth for 2 hours a day is a long time! It was difficult for me to get used to it. Also, I noticed that my teeth became a bit sensitive after using them. I did notice quite a difference in the colouring of my teeth after I finished the entire product. They look a lot whiter than they did before, and it makes me feel pretty good about myself. I would recommend this product to someone if they want to get whiter teeth without having to get them done professionally, but I would definitely mention the fact that your teeth will hurt and be quite sensitive after using them.

I received the whitestrips from the product review club.

I found it very difficult to find a time when I could wear them for 2 hours straight, sometimes I would forget to put them on when I had a opportune time. My teeth did experience sensitivity after about 2 days of using the strips. I suspected that they would, because I have heard from people that have tried whitening before that this may occur.

I would love to have whiter teeth, but I don't know how I feel about using a product like this long term, or over and over again in the future. It did whiten my teeth, but the drawback of wearing it for 2 hours and the sensitivity it produced may not be worth it to me realistically. I would definitely recommend this product to someone that isn't worried about sensitivity because I think that the time factor isn't really that big of a deal. I do think that for people that want to whiten at home, this is a good system to use.

Thanks Chickadvidor for allowing me to test this product. Let me start off by saying this product is not for those with sensitive teeth. By the second day my teeth were hurting..and knowing I had to leave them on for another two hours that night sucked! I also believe that although the strips stayed in place for the two hours it was a very long time to keep the strip on. After the 7 days I do see a difference, my teeth are whiter but also in a lot of pain!

First off, I have photos, but there wasn't a noticeable difference in the photo. There was a difference in person though!
The strips adhered very well. I did find them a little difficult to apply evenly, there seemed to be a wrinkle somewhere along the strip, and the wrinkle caused the gel to leak out, and irritated my tongue.
I had to take a break on day 3 because the pain it caused my teeth. Thankfully the sensitivity has subsided a few days after the week trial.
I didn't find it hard to grab 2 hours to use them, so that wasn't an issue. The biggest problem I had was the tooth pain.
I don't imagine that I would use these again. I think that Crest should include a toothpaste for sensitive teeth for the week that the strips are being used.

First I would like to thank Chick Advisor for allowing my to test this Crest 3D Whitestrips Intensive Professional Effects. First of all I loved the fact that the strips stayed on for two hours and did not slide off at all. I found that I was seeing results after the second use. Even though it is indicated that it could leave teeth sensitive this was the only problem that bothered me as I found that I had to use the strips every other day in order for the sensitivity not to bother me to much. The sensation does go away though. I loved that my teeth were whitening and for the cost of what you could do at home compared to the dentist I found that it was great. My only worry is if it has long term effects regarding the senitivity in the future and with regular use. All it all, I think this definitely worth trying or buying as nothing stands out better that a nice bright smile.

I really liked these white strips. They were easy to use, and my teeth are noticeably whiter! My boyfriend commented on how white my teeth looked after the first day! The seal on the strips, makes it easy to keep on your teeth for two hours at a time, which is a plus after using some that would slip off after 10 minutes.

I'll definitely buy these again. The only problem was my teeth were sensitive for about a day. So I used them every other day and it was fine. My teeth are really sensitive anyways, and it usually happens with any whitening treatment.

(I received this product for free to test!)

Crest’s 3D White Whitestrips Intensive Professional Effects do live up to its name to whiten your teeth in just 7 days. The kit includes 7 packets of strips and an instruction manual. Similar to other whitening strips, each packet in this kit has a top and bottom strip, which folds over the front and back sides of your teeth.

Pros:
I found the strips in this kit to adhere better than other brands, and yes, it does whiten your teeth in 7 days! The difference isn’t very dramatic but it is definitely noticeable.

Cons:
Like other whitening strips, these strips left a funny aftertaste in my mouth. It also started to get loose after half an hour, but I was able to minimize this problem by using one strip at a time instead of both at once. I thought that the 2 hour waiting period was a bit long, but perhaps that should be expected for a 7-day treatment which should only be used once a year.

All in all, if you are looking for an inexpensive way (compared to going to the dentist) to whiten your teeth by a shade or two, I would recommend trying Crest’s 3D White Whitestrips Intensive Professional Effects.

Note: I received this item to test over a 2 week period as part of ChickAdvisor’s Product Review Club.

This product does what it says it will. My teeth were noticeably whiter after just the first use, however I had to discontinue use after only two uses. I've never had a problem with teeth sensitivity; it is a rare occurrence for me to feel that tingly feeling after having something too hot or too cold. I tried this product in the evening, followed instructions exactly (they are very easy to follow), removed them, did some other stuff then went to bed. At the time I went to bed I had slightly whiter teeth (yay!) and my teeth felt normal. However, I was woken up several times throughout the night (probably about 3 or 4 times) to an extremely uncomfortable feeling of tingly/sensitive teeth. And it wasn't going away. It carried on throughout the whole next day as well. Only after going to sleep after that whole day did it go away (it went back to normal after that). I freaked out at first, but read the box thoroughly and because it said it was normal I thought I'd try the product a second time. I was hoping that perhaps after my first experience my teeth would get used to it. Sadly I experienced the same exact thing, and it was just as intense of a tingly/uncomfortable feeling as before, to the extent that it was difficult for me to concentrate at work. After that I refused to try any more as the consequences for me (a sleepless night and full day of feeling uncomfortable) was not at all worth it for me. I plan to give the rest to my boyfriend and am hoping he has better results. My suggestion is to not buy the most intense whitening one (my product was number 5 on a scale from 1-5, and is the most intense one you can buy). Like I said I never had tooth sensitivity problems before, but I would be curious to see if I would have any if I had tried a product with number 2 or 3 whitening. The product definitely delivers, the advance seal was great because it kept the foamy part from entering my mouth and easily made me forget that I was wearing the white strips. Overall however it just wasn't worth the discomfort it caused. So definitely use at your own risk!

I was one of the lucky member to receive this product for free from the ChickAdvisor Product Review Club. It worked great, I could see a difference after the first use. I don't usually have sensitive teeth, but these did cause sensitivity to the point of being sore so I had to use it every other day as opposed to everyday. But would definately use them again and recommend them.

The first 2 hours I tried the Whitestrips 3D White Professionnal Effects, I was impressed! I saw results right away. The strips are expensive, but high quality. They don't slip like others brands I tried, and you can drink because they stay in place. The second day, I had trouble keeping them for 2 hours, because it started to hurt... The instructions sheet recommended to stop for a couple of days, so I did, and the pain went away. But, for two days, it really hurt and I had trouble sleeping because of it. My teeth are sometimes sensitive when I eat ice cream, but I usually don't have pain like that. The results are impressive after just 2 days, so I definitely recommend it, but I will not continue using the products for another 5 days. If you have sensitive teeth, you should choose Crest 3D White Gentle Routine instead. It's what I used before... it takes longer to see results because you only use them 5 minutes a day, but I didn't have pain when I used those.