[This review was collected as part of a promotion.] I love coffee but I don’t love what it does to my teeth. I want the whitest, brightest smile possible and Crest 3DWhitestrips Professional Effects Teeth Whitening Strips lets me have the best of both worlds. They’re easy are easy to use and after just one use, I can see the difference.

I love Crest Whitestrips. I used to use them a few times a year and had the whitest teeth, they would glow in black light. But not unnaturally white. Just free of stains. It’s an excellent effective product, a little messy though and kind of a production to use but worth it all. The strips have a whitening gel on one side that molds to your teeth. You leave them on for a certain amount of time, I think it was around 30 mins but don’t quote me. You can watch a movie or distract yourself while you wait, drooling a bit and occasionally adjusting the strip, which might numb your gums just a little. So much fun. But again, like I said, it’s really worth any mild discomfort for the noticeable whitening effects that are much better than toothpaste alone. I hope to buy some again soon.

This is probably the best whitening strips out there. These whiten my teeth within a month of using them almost everyday and my teeth were pretty yellow. Yes, they're expensive but cheaper than going to the dentist for them to bleach your teeth. Does cause sensitivity if you use too much. If that happens then I'll stop for a couple days and start back up

The best at home whitening! I usually split the box into two separate treatment’s worth so I have more for my dollar but also not using too long to cause too much sensitivity. I usually get sensitivity to my teeth while using this about 8 hours after I finish, so I usually do at night before bed that way it never effects my eating or drinking!

I noticed my teeth were whiter after just one use. I have used other whiteners in the past and did not notice a difference in my teeth but these ones actually work. I have used almost all of the strips in one pack and will definitely be buying more when I need them.

I have tried many kinds of whitening strips but these are by far my favorite one yet. I could see a noticeable difference the first time I used the product and they stay on without sliding out of place. I would recommend this to anyone unsure about the product.

I love this product! I’ve used it about 3 times in my life and it has not failed me! Currently I’m on my 5th strip of the set, at one strip a week and I feel confident about show pearly my teeth look. Just make sure to keep your teeth clean when you use these, and to try to stay away from strong pigmented foods and drinks. Also, it does leave your teeth a little sensitive the next day, but that’s why I like to use mine one a week!

Works really well! I definitely notice a difference after continued use. Be careful not to leave on for longer than the specified amount of time. I once fell asleep with the whitestrips on my teeth which added an additional 40 minutes to the recommended time, and my teeth and gums were extremely sensitive for the next two days.

This is a great at- home teeth whitening kit. The strips stay on easily. I could see a difference after using one time. After using daily for a week my teeth were visibly whiter. I have sensitive teeth so using too much can leave them a little sensitive. But overall I would recommend this kind of teeth whitening.

These work fairly well. They do what they say they should but if you don’t use them for a few days then you will start to notice that your teeth seem to loose whiteness. Idk if that’s just for me but that’s the only thing I wasn’t a huge fan of. Other than that they’re easy to use and seem to do a pretty good job and work quickly.