[This review was collected as part of a promotion.] This product is nice to refresh a previous whitening treatment, but I wouldn’t use it alone. It did not make my teeth sensitive and it works, but it takes a lot of time and multiple use to see results

[This review was collected as part of a promotion.] First time using a whitening pen. I did notice some difference in the whitness of my teeth. Did not use everyday though mostly due to forgetting to apply it. I do have sensitive teeth and this did not irritate them at all. In the future I would probably choose whitening strips over the pen.

[This review was collected as part of a promotion.] I love this teeth whitening pen it works really well and fast! It doesn’t taste bad and it doesn’t feel gross. Definitely would buy again! Definitely recommend to anyone looking for a teeth whitening pen !

[This review was collected as part of a promotion.] I haven’t had one of these in a few years, but they essentially still work the same way (don’t drink water etc for at least 30 minutes after using the pen). Also, I feel you need to use it consistently, as I didn’t notice any results for what felt like a week. I do have 2 crowns but in my other teeth, it wasn’t as bright as I hoped after a few weeks, but everyone’s dentin is different (that’s the surface behind the enamel). Also, remember not to overuse, these can affect enamel after months of use :-)

[This review was collected as part of a promotion.] This products formula is very nice and effective, but I do prefer it in a whitening strip or used with trays because it comes off shortly after application in this form. I will continue to use it until it runs out, though!

[This review was collected as part of a promotion.] The pen is easy to use and very convenient. Results are not as immediate as you would see with whitening strips. Whitening does happen but very gradually. This is good for maintaining after you achieve the whitening results you are looking for. Good product.

[This review was collected as part of a promotion.] This Crest Whitening Pin is fantastic!! I noticed my teeth were whiter after ONE application! The first photo is before, second is after! I would highly recommend this product & I would definitely purchase it myself! It's very easy to use and perfect to throw in a purse or bag for on the go!

[This review was collected as part of a promotion.] I liked that the pen was easy to apply and no real mess. It’s kinda awkward to keep your lips away from your teeth while it drys, but that step only takes about a minute. I only gave this 3 stars because I didn’t notice a big change in color, but I think this product would be great for upkeep after using a stronger teeth whitening product initially. I didn’t have any sensitivity, and as long as you don’t apply too much product, there’s no real taste to it which is also a plus. Overall the pen would be a great product for travel and maintaining a whiter smile after using the Crest Whitening Strips first for the biggest color change difference.

[This review was collected as part of a promotion.] I really wanted to love this little whitening pen because it takes 60 seconds and is as small as a mascara tube so it is easy to grab and go. The main problem is the applicator, it is a twist to release mechanism on a brush so especially with the first application, it takes so many twists to start seeing the product then all of a sudden it is seeping out and you have wasted it (see photo). Also the brush gets pretty gross after a single use and if you want to wash it, you will lose the extra product left over on the brush. It is also a twice a day application which is hard to keep up with, but if you only have to leave it on for 60 seconds it makes it more manageable. I think they are on the right track, but not quite there with this whitening pen. With improvements in the applicator, I think it would be a much more appealing option for whitening

[This review was collected as part of a promotion.] It came in good condition, I have used it once so far. I like it. It's easy to handle and support, giving the same flavor as a regular toothpaste. I just have to keep on using it to see any results.