I work at a dental office got my teeth whitened 2x and glad I didn't have to pay because it really made no difference. So I decided to buy these and I love them! So much better than the "professional" stuff and didn't make my teeth sensitive like the in office whitening did.

I wanted to whiten my smile before the holidays, i drink a lot of tea, so i purchased 2 boxes of the Professional effects white strips. Thinking that if i used two boxes back to back i was sure to have a whiter brighter smile, WRONG!!! I have used them and honestly I can't tell a difference and neither can my husband and family. My teeth aren't horribly dingy but they aren't bright white either, I don't understand why they didnt work. So needless to sayi just wasted $80.

I have tried other teeth whiting products and none can be compare to Crest 3d white. This product is awesome and I have refered it to all of my family members and friends. On the first day I used the strips,toothpaste and mouth wash people noticed how white my teeth were,I had great results on the first day of using Crest 3d white. People were telling me how bright and white my teeth were. I now have a new smile thanks crest 3D white.

Great teeth whitening strips that actually work. I see a difference after at least a week of use, and feel like I'm removing any/all stains from my teeth. I have pretty sensitive teeth so I typically need to take a break after a couple of days, as these strips lead to a 'tingling sensation' almost like a brainfreeze in my teeth. But totally manageable and less severe when taking breaks in between wear. Highly recommend for accessible, at-home teeth whitening! 

These strips definitely work wonders! I saw results in a matter of days. I drink coffee every day & they definitely cut through the stains on my teeth. You may feel some sensitivity and in that case I would recommend only using them one a day or every two days!

Getting a blindingly white smile was never this easy! I am soooo happy with how white my teeth have gotten with these strips. I used to have to use trays, but not anymore! I'll definitely be switching to this twice a year now. My teeth are easily 3 shades whiter.

Crest strips definitely help whiten, but I have yet to find a whitening strip that doesn't make my teeth sensitive. These do tend to make my teeth and gums sensitive after use and due to this, I don't use them very often. If you are wanting to brighten your smile up for a special event they are a great option though!

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.

These strips work wonders. You notice immediate results and over time it's like you have a brand new smile. Follow the instructions and you will reap the rewards of using these. I haven't noticed any sensitivity issues and have been using these for a few years now on and off. White teeth despite my coffee, tea, and red wine addictions!

They work! I started using whitening strips in high school and have continued to use them since. I had braces and the idea of my teeth looking anything but white horrifies me. These whitening strips are an awesome at home treatment however if you are subject to teeth sensitivity as I am, don't use regularly as they do make your teeth more sensitive than normal after use. I use them leading up to a big event!