I like these but I never notice a huge difference. They also aren’t comfortable taking off as I find the stick a little too much. I start to see something right after I take them off but I really can’t tell if that’s just in my head. I probably won’t repurchase any time soon.

This product works great to whiten teeth. The strips actually adhere to the teeth so it does not move around a lot while you are using them. If you tend to have sensitive teeth or sensitivity every once in a while do not use these strips back to back.

I always have a box of these handy! I really enjoy how simple it is to use this product. No need to hold a light up to your mouth or use messy charcoal powders. This product is two sticker like adhesive that you place over your teeth and leave on for about 30 minutes. I only give it 4 stars because it makes my teeth sensitive for the day.

Super easy to use and worthwhile. I could probably have better results if I used this regularly. Instead I use them as a monthly touch up instead of the daily use they recommend. At my last dentist visit, they all oohed and ahhed over how white my teeth are! No problems with sensitivity.

These REALLY work! Even after one use I could see a difference, but the real trick is to use them daily if you can and results are insane after a few days. I’ve had several people stop me mid conversation and say “wow your teeth are so white!” There are 2 downsides in my opinion- the “zings” you get after a good amount of time using these (sharp shooting pains that go away as quickly as they come) and the taste. But if you can get past those two minor details the results are so worth it.

These strips really do get the job done - there is a noticeable increase in whiteness with the classic napkin test. I cannot in good faith give more than three stars though because these things HURT. I didn’t think I had sensitive teeth, but my teeth not only hurt afterward but hurt for two days. Unsure if the cosmetic effect is worth that kind of pain.

This product was highly effective when I used them years ago. I've tried off-brands and they haven't worked as well. My only complaint is that I have difficulty leaving them on my teeth for a full half hour. They make me salivate a great deal, and they slip off my teeth as a result, usually the bottom. I often mitigated this issue by doing the top and bottom teeth separately, but of course this takes longer.

I just recently started using these and I’ve only done it a couple of times but I haven’t had any problems with it. I haven’t seen any clear results but I’m giving it some time to work. Overall, it seems like a decent product but clear results aren’t quick.

I have tried a lot of whitening agents and this is by far my favorite to use, regularly. While it can cause your teeth to be sensitive, you simply just need to give yourself a longer break in between whitening. No worries, it is still just as effective, even with breaks in between.

I recently started using these and it’s been about 3 days so far. I put them on two nights in a row and my teeth were pretty sensitive to it the next day so I started doing it every other day. I’ve heard really good things so I can’t wait to see how my teeth turn out