Crest3D Whitestrips, Professional White, Teeth Whitening Strip Kit, 40 Strips (20 Count Pack)

I've used about 5 strips over 2 weeks and I definitely see it working. I am already a shade or 2 lighter.I've used other at home whitening methods including trays with gel or brushing gel on your teeth, but the white strips are so much more pleasant. You don't taste nearly as much as that nasty gel and they don't make you drool or need wait for them to dry... You can just continue going about your day. I am also surprised how much more even they whiten using these strips. I will not use any other method moving forward.I do have sensitive teeth, and using these daily was too uncomfortable for me to continue with. I find I have no noticeable sensitivity if I stick to 2 days a week. I also don't have any major whitening to do and I don't smoke or drink coffee- these are mostly to get a few shades lighter. Once I finish this box I will buy another for maintenance 1-2 times a month.

These are my go to for teeth whitening every year. They really work wonders! I’m 58 years old and my teeth are looking pretty good!

I had years of stains from coffee and tea on my 70-year-old teeth. These strips brightened them significantly. They don't look fake or over-whitened, but naturally brighter. I have a cap that I wanted to match, and these did the trick. In the half hour it takes me to shower and dress, the treatment is done. Now I use them to maintain the color. The only complaint I have is that the box came a bit crumpled within a larger Amazon box with other items. The product was unaffected. Otherwise, the seller's response was rapid and accurate.

prefer this box as more strips mean when I finish the box I've done more whitening. I also believe these strips are designed a little better and stick better, and don't roll over or bunch up as often as the the 20 strip box I used to buy. Could be they were older boxes too. These have been the most value for the price on Amazon and 1 box later my teeth are far whiter then 2 of the other boxes. Con: if I wear them longer than the recommended 30 mins my teeth will be sensitive for about a day then they are good again so I only wear them every few days, rather than every night/morning

I have trouble getting these things to stick to my teeth. I just tried to apply the bottom one and it wouldn’t stick at all. Maybe I need to blow dry the inside of my mouth to make these stay in place. Maybe they are old. I hope I didn’t waste my money.

I took a picture the first day and compared it to a week later you can see the difference fantastic so now I whiten my teeth probably once twice a month to keep that shine

Love the product, easy to use, no pasty after taste. Saw results within 2 weeks with daily use.

I've used this product before with fairly good results. But a point I want to make now is the EXTREMELY deceptive packaging. The package is actually TWICE the size it needs to be. When you open it you will note that the box is divided into two compartments divided by a bit of cardboard. One side contains the treatment packets. That is fine the other half is totally empty, nothing in it just empty space. That is completely useless and a waste of materials. AND it is deceptive making you think you get twice as much product is what you do. I think this is dishonorable and needless.