I've purchased whitening strips before but never the advanced seal. I highly recommend it! I noticed a difference after the first application. It really is like getting your teeth professionally whitened. You do tend to feel some sensitivity after the entire treatment but the sensitivity does go away and you are left with a beautiful sparkling smile! It is pricey to purchase it but completely worth it.

I've used Whitestrips for quite some time, and tend to buy a box every two years. While they are pricey, they do offer significant whitening for a price far below that you would pay at a dental office. I was provided a box to review by Chick Advisor, and this was my first time trying the Intensive Professional Effects. I love the Advanced Seal technology, and will never go back to the regular Whitestrips. These ones stuck tight for the entire two hours, and did not leave a goopy mess all over my teeth or slide around.

I had my front teeth filed years ago, and do get sharp sensitivities when whitening. I did get some unpleasant sensation about 20 minutes in which faded away, and chose to use the strips every second day which helped.

Finding two hours to use the strips was also difficult - I tried wearing them while on the elliptical, but my mouth produces a lot of extra saliva when wearing Whitestrips so it wasn't really practical. I ended up using them in the evening, with the only downside being that I couldn't drink tea during that two hour period. I found I was easily able to sip water with a straw while using the Whitestrips.

After 12 days of whitening (7 two hour applications) my teeth are several shades whiter, and I have gotten compliments. I haven't experienced any lasting sensitivity. In the future I would purchase the next level of Whitestrips down, so I could use the Advanced Seal but not have to apply the strips for two hours daily.

If you need white teeth in a hurry and do not experience sensitivity, I would recommend this product. If you have more than 7 days, I would recommend another Crest Whitestrips product with less intense effects.

Very pleased with this product. It was easy to use and did improve the appearance of my teeth, they did make my teeth a few shades brighter. I did find them easier to use then other white strips I've tried in the past. But I wish it didn't have to be on my teeth for so long. Other than that I would say this is a very good product and I would consider purchasing it again in the near future especially if they go on sale. Thank you Chickadvisor for giving me the opportunity to test out this product!

I received these Crest 3D Whitestrips free from the Product Review Club and was really excited to try them. The product packaging was nice and eye catching. The product itself worked really well and the strips were easy to use. I noticed a definite difference in the shade of my teeth, they were considerably whiter which is always nice. I would definitely buy this product again and I've already told my best friend and mom about them.

I am quite happy with the overall results of this product. I am a smoker so as you can imagine, my teeth are not the whitest. This product definitely delivered on whitening my teeth, I seem a vast improvement from what color they were before. My complaint is that I found the strips uncomfortable, like all white strips and using them for 2 hours every night is very time consuming. Overall however I believe the results out-way the cons and would definitely use these again!

I am totally amazed by the crest 3D white strips as I have sensitive teeth. I used them everyday for one week and it did not bother my teeh or gums at all, which is a big bonus for me. I also don't have really stained teeh but you could notice the difference in just 3 days, I was asked what did you do to your teeth "they are so white" I said Crest 3D white strips, friends were quite surprised and so was I at the difference they made. A friend bought them after the difference they made with my teeth, she said if they can make your teeth even whiter than they already are, then they should do wonders on my stained ones lol

Thank you ChickAdvisor for allowing me the opportunity to try and review Crest 3D White Whitestrips for free!
I was skeptical to try the product at first, but am so glad i did as i was shocked and impressed with the results. I found them easy to use, however one definitely needs time as the best result is to have them on for 2 hours. Also, i was able to use them twice in a week and 1/2 and have noticed a even better result the 2nd time i used them. I did unfortunately experience a tiny bit of sensitivity while having the 1st strips in and therefore took them out earlier than 2 hours and a 2nd sensitivity sensation later in the day after wearing the 2nd ones, but that was all. I have never used other whitening in the past, but would say this is an easy way to do it and inexpensive rather than going to the dentist. I would definitely purchase this product and recommend it to a friend. Very quick, easy to use, and effective!

Thanks to Chick Advisor for sending me this product to try for free! I was very impressed with the job that these did whitening my teeth. I was a bit nervous to try them as I've heard they can cause tooth sensitivity, which they did cause a bit to me, but nothing that I couldn't handle. The sensitivity went away within a couple of hours of using the product and it was definitely worth it at the end when I saw how white and bright my teeth were. I will definitely try this product again and will recommend to friends! Thanks Chick Advisor!!

Thank you Chick Advisor for sending this product for free as part of the review club.

This product did an amazing job! I will admit my teeth weren't very yellow to begin with. I don't smoke and drink maybe 2 cups of coffee a day. But I am over 40 so they definately needed some help and I still saw pretty good results with the whitening.
I did take a before and after pic that I will post as soon as I remember where I put my camera
I did experience the tooth sensitivity that they had mentioned and said was normal. However....the sensitivity effected me so much that I could only do the strips every second day. I found if i used the strips continually the sensitivity got to a point that I couldn't stand to drink or eat anything very cold or hot.
But putting a day in between whitening helped alot in that area.
The strips did stay in place quite well for the 2 hours, but they were sometimes hard to get off and sometimes came off in pieces! But I think i would rather have that than strips that slip around all over the place. There was quite a bit of residue left on my teeth once I removed the strips, but i just did a quick brushing and I was good to go!
Overall this was a great product and delivered on it's promise.
Although the price might seem a bit expensive, I would probably purchase it in the future.

I was so happy to receive this product for free and to have the opportunity to be a tester!

I noticed a slight difference in the color of my teeth so I feel the whitestrips worked great! It's exactly what the product claims it will do.. They were easy to apply and I could go about my normal activities while they were on. Other products I have tried were messy or required me to sit there for half an hour doing nothing. These had a pleasant taste
I really enjoyed using this product and would purchase it if it were on sale or if I had good coupons. I have already reccommended it to a few of my friends and would Reccomend it to more.