These really do work and make your teeth so much whiter BUT warning IF YOU WEAR THEM LONGER THAN 30 minutes your teeth will hurt the next day and be extremely sensitive so be careful and don't wear them longer than recommended time

This product by far works!! I purchased the "tray" and whitener from my dentist previously. Crest 3D Whitestrips are easier, less messier and convenient!!

Immediate noticeable difference!! Even after one strip you can see the change. I recommend these highly. Only complaint is if you have white spots on your teeth, they get super bright

These things are kinda expensive but they do make my teeth feel whiter. Sometimes they slip off my teeth but I just try not to move my mouth too much.

I did see some results with this product but it's kind of annoying having those strips on teeth for a half hour, that's the only con about this item . I've used about 3 separate times , I would buy again.

This is AMAZING. After one use my teeth are already looking brighter. I can't imagine consistently using it! It's so worth it! My teeth do get sensitive but beauty hurts.

I have used these since high school and I am so impressed by how they work. I had yellow teeth so I used these daily as recommended and now as long as i use the strips once every week or two my teeth stay pearly white!

If you want white teeth buy these! They work pretty quickly and you can pretty much see instant results. They don't leave you with sensitive teeth after and they have a nice grip.

These teeth got my teeth so stinking white! I haven't whitened my teeth in almost 8 years and still get compliments on how white my teeth are. It's been maintained by crest 3D white toothpaste but it's pretty incredible.

this helps whiten your teeth and it works but not as much as everyone would assume. you could use the whitening toothpaste as well for a better outcome