I tried the whitestrips after lunch and just keep them attached my teeth while I was running errands. I took them off in about 2 hours, didn't notice too much difference. However, about an hour later, I looked at my teeth in the mirror, and I could tell my teeth are much whiter. It takes time for the results to kick in but definitely worth it!

I want to love this product but unfortunately my teeth gets really sensitive to this. It's hard to eat or drink anything cold the next day. Even sucking cold air into my mouth is sensitive. I wish there were more options for people with sensitive teeth. 

I am thrilled with the results I received with my trial of Crest 3D White Professional Effects Whitestrips. While I have been noticing great results with all of the Crest 3D products, I noticed a whiter smile after only one use of the Whitestrips. They were easy to use, stayed in place and there was no bad taste in my mouth while the strips were on my teeth. I was so happy with my results that I just had to share the good news.

This whitening kit is by far my favorite. I love these they don't hurt for sensitive teeth and leave my teeth looking red carpet white. They are not too expensive but for the price i would say you cant find any better! My whole family uses these and all of them approve as well!

[This review was collected as part of a promotion.] I wanted to love these! I even made sure to take a before photo of my teeth hoping for a dramatic after pic. I really tried to use them consistently, but I know I have sensitive teeth so I started with every other night. Even that was bothering my teeth so I just fell off the wagon and can only use them sporadically. They’re easy to use and I’m sure they’re effective if you have teeth that can handle it. I’ve yet to find a brand that my teeth like.

[This review was collected as part of a promotion.] Just had to share my experience with this awesome dental health product I received for free from @Influenster and @crest! Who doesn't love a good at-home whitening treatment that actually delivers? I'm seeing amazing results and can't stop smiling! 😁 What's great is that it's super affordable and saves you a ton of money. I was a bit worried about sensitivity, but these strips worked wonders without making my teeth sensitive to hot or cold. If you want to smile with confidence, this is a must-try! The package is great for travel and easy to open. #dentalhealth #whitening #sponsored

I use these every few weeks just once and it is amazing. I use it for the boost when my whitening toothpaste just it's t fully cutting it or a day before an event. My teeth do get sensitive so I use an enamel building toothpaste to combat that. Highly recommend

These work so so SO well. I can't say enough good things about these white strips. Sometimes my bottom teeth will develop a sensitivity to cold products after using these for a while, but then I just use sensodyne tooth paste and it fixes the problem right away.

I use this 2 week set and also the pack that you use during the 6 months between when you're supposed to use this. I love this and see a visible difference every time I use them. They're a little pricey, but only buying them twice a year makes me not feel as bad about spending the money.

When I quit smoking I tried everything To get rid of cigarettes stains. Even with regular dental visit and cleanings the stains remained. I tried all kinds of Tothpaste. No help. After 5 packets the Stains are almost gone. I still have several to use and another box. Thanks