I am obsessed with all of crest 3D products especially these strips! My teeth were yellow before and I have the pics to prove it. I discovered these strips and stayed consistent with the toothpaste and the mouthwash as well and I could not be happier with the results. I get complimented on my teeth all the time and my confidence is at an all time high!

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.

Professional Effects are by far the best whitestrips yet, I saw results with in the first few days and the best self-esteem boosting compliments I have ever gotten on my smile! I finally feel good about my smile! Definitely will be using this product over and over again

Expensive and uncomfortable...have to put those strips and endure an hour of disgusting foam in my mouth everyday. The strips are made small now so they have trouble sticking to my teeth...i can see them slightly whiter but not worth the trouble or money

[This review was collected as part of a promotion.] I havent used white strips in years, and theyve clearly improved. I remember them being very flimsy and hard to stick to your teeth. These felt thick and they adhered to my teeth very well. I had immediate results with these, I just wasn't able to use the full treatment due to sensitivity. The first treatment my teeth felt sensitive while I was using it, but I had a few treatments after with no effects. Then I started getting longer lasting sensitivity again. I probably would make sure to use sensitive toothpaste in between treatments. And maybe do the treatments every couple days.

I use these once per year for two weeks (don’t skip a single day) along with a regular whitening toothpaste when I brush twice per day. Ever since I began using them, I get compliments about how white my teeth are. Every six months at my cleanings, my dentists and without fail they have each commented on how white my teeth are. Never had a professional whitening procedure done in my life. So they DO work. I’m a non-smoker and seldom drink dark teas/coffees.

These work! I use them very, very rarely, like maybe once a month. I like that it only takes 30 min and my teeth definitely look whiter after. They do feel sensitive when the strips and on though, and that kinda freaks me out. I don’t think I would use them as frequently as they recommend.

I use these twice a year! I’m a dental student and I think these are better than professional whitening strips. They make my teeth so white. You can leave them on 2x as long as the package says to get double the use out of them too. Just use some sensitive toothpaste to help with sensitivity

I have been using these for years to whiten my smile. I don’t really ever have sensitivity after use. The only downside is you need to go through almost all the strips before other people take notice of the difference in your teeth. After you go through the majority you could stop and then just do upkeep once every two weeks or so. I do recommend this product but there are definitely better teeth whitening things out there. Just want to just the easiest and most accessible

I’ll be honest—I didn’t see much of a difference with these. I had coffee stains and I expected them to be much whiter after using these. I will say, they didn’t cause me to have much sensitivity after use, which was nice and for the price, I did see a slight difference.