I'm pretty new to home teeth whitening, but I liked these a lot. They seemed to work well. They did leave a weird film over my teeth that was thick and sticky that you have to brush off, but I'm assuming that's typical. I like them and will continue to use

Used these every day for a week leading up to a fireman's ball, and they definitely worked! Only reason it's a 4 star and not a 5 is because even when I left them on for 20 minutes instead of 30 there was a slight irritation/pain to my teeth for a few hours afterwords, but nothing unbearable.

My 16 year old daughter wanted to whiten her teeth, and my dentist recommended Crest Whitestrips. I really wish I could post the "before, during and after" pictures we took. Amazing results, we can not believe the difference in just 7 days! I would definitely recommend trying these.

I have tried many home remedies for teeth whitening for years until I finally came upon crest 3d whitestrips. I saw a very noticeable difference within one week. My gums are also sensitive and they did not effect them negatively. Amazing product and I plan on purchasing again.

3D Whitestrips professional effects to your oral-care routine for: • Professional teeth whitening at home. • Results last up to a whole year. • Apply daily for 30 minutes. • Advanced Seal's technology, no-slip grip, stays put so you can talk and drink water while whitening your teeth. • 3D Whitestrips use the same enamel-safe teeth whitener that dentists use. 3D Whitestrips allow you to see results after 3 days, with full results in 20.

These destroyed my teeth. I wouldn't say I have sensitive teeth and these made me cringe in pain. My teeth felt like they were being chipped and burned. Not to mention I saw no results and it left a gross sticky residue behind on my teeth. It was supposed to be a 10 day process but I could only handle 8 days of that torture.

I LOVE this product! The first time I used it, I didn't notice a major difference; however, as I continued to use it I noticed my teeth got significantly whiter! I used the treatment several times in preparation for a photo session, and I was so happy with the results. If I leave it on for too long, my teeth can feel sensitive after use, but it's never for long and the payoff is worth it!

So basically a bad depressive episode caused me to neglect my teeth and then endless amounts of coffee didn't help. After working myself out of it and finally taking care of myself, I still couldn't smile with my teeth. I was self-conscious. I thought about getting them professionally whitened but opted to try this. BOY. I saw results by the third day like the box said I would. By the fourth day, I could almost cry. I'm not done with my 20 treatments yet but this has seriously changed everything. It makes me so happy. I can't believe I could have just done this the whole time. Thank you crest, for this lovely product and giving me my smile back.

I use the crest whitening toothpaste which works great alone but if I have a special occasion coming up or just want that extra oomf I use these and my teeth stay looking white for about 2 weeks. But I drink coffee a lot so that probably doesn't help.

I have average kind of yellow tinted teeth and decided that needed to change for a photo shoot I was doing the next day! I tried these because of a friends experience and I noticed the difference that day! Love this and recommend it to anyone looking for a teeth pick me up! Especially for broke college students like me!