I am a dental hygienist and was Leary. I bought this for my boyfriend who had reallllly yellow teeth. The old strips were terrible, they slipped if and were annoying. These new strips are awesome. And they reallllly work . His teeth have lightened up a few shades and look great :)

Used Professional Effects in the past with AMAZING results, as have many of my friends and family. So many people swore by it — and for good reason! It did exactly what it promised. So why on earth change something that was already perfected and loved by many? Change is not always for the best. The purple boxed Luxe should have been a permanent product. These new strips neither adhere sufficiently, nor whitens evenly, or even half as well as the former ones. Extremely disappointed in the change of line. I'll never understand why companies feel the need to "update" products that WORK. If it does what it's supposed to and impresses people with the results, then leave it alone! Loyal consumers will thank you by coming back for more. As it stands now, I will not be wasting further money on this overpriced junk. A real shame, since I would have repeated my purchases on the older strips for as long as it was available/needed. Don't cheapen your products. You were doing good work before.

I used the product 3D Crest Whitening Stripes a few months ago so I could have the whitest smile at prom. Within a week or two, I was more than happy with the results! All my friends were complimenting how white my teeth were and it gave me the biggest confidence boost ever. I've always wanted a beautiful white smile! To keep up with the wonderful whiteness, I use 3D Crest Whitening Toothpaste that tastes better than toothpaste should taste. It's honestly the best product I've ever used to keep my teeth clean and white. I plan on using the whitening stripes again this winter because I just LOVE having a perfect white smile! It's fast, easy to use, and 100% the best decision I've ever made.

My brother used to use these and every time I he’d visit his teeth would catch my eye because of how bright they were. He recently gave me three of these and I’ve definitely noticed some results. I didn’t brush my teeth for a year or so when I was younger so it’s really reassuring to know there’s something that could quite possibly fix the damage my younger self did to my teeth.

My name is Jaclyn, I'm 24, I recently used the Crest 3D White Whitestrips Professional Effects and was simply blown away by the results. Let me first just say that I have been using Crest 3D Whitening Strips sporadically since 2007. I had a dull, yellow smile in high school, but after using the product for the first time, my confidence soared after people continuously complimented my smile. I simply love the product, and after my first use of the Crest Whitening Strips, I have never used another. My experience with the Professional Effects is simply my best yet. I have become a coffee drinker since starting my new career, and Crest Whiteing Strips provided me with my full, bright smile again with hardly any sensitivity. I am truly floored by this product's ability to continuously improve, and I thank you for my beautiful smile. To this day, it is usually the first compliment I recieve when meeting new people, and i truly have your Professional Effects strips and your 3D Whitening Toothpaste to thank for that. Thank you for giving me confidence to meet new people, and to share my smile with the world.

[This review was collected as part of a promotion.] Thanks Influenster, for the free Crest 3DWhitestrips.. the packaging was not great, but that may have been due to shipping. These strips worked ok, I noticed a slight difference. I dd have a slight sensitivity to it.

[This review was collected as part of a promotion.] These crest white strips are so helpful when you need a quick teeth whitening! I’ve used these for a couple days now before bed and I already notice a difference! It’s gradual but definitely there! I’m hoping for even more after a few weeks of use! They are a little tricky to apply but I’m starting to get the hang of it. I found that making sure your teeth are somewhat dry helps them stick better. Eat at home whitening!

I went for my cleaning this week and my dentist actually thought I had went to someone else to have whitening done. We had discussed it so many times but after reading horror stories on the internet I swayed back and forth. Then I had a chance to try Crest 3D Whitening Strips. I am so happy! It wasn't messy and the results were noticeable after the first use. They didn't burn my gums and whitened gradually so I had no teeth sensitivity that I experienced with other products I tried.

I used crest white strips in the past and loved them. They always work and do the same job as getting your teeth whitened at the dentist, but for way less money. My issue is how small the bottom strip is. It’s oddly small... I am not sure if I got a faulty box, but the strip only covers up to each bottom canine. So weird!!

so i purchased this. i used 4 treatments four days in a row and I noticed that my teeth looks really white. However, i forgot to keep going and used the strips again after 5 or 6 days. my teeth went back to the old color after 4 days after using the first 4 treatments. so now i have five more to go. i really wish i used the 14 treatments for 14 days in a row. I'm not sure if my teeth will go back to the same/yellowish color after doing the 14 treatments again if i purchase another kit.