[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.] I’ve used this 3 times now and haven’t had any sensitivity from it! I like that it’s a pen, making it easier to use. Sometimes too much product comes out and gets everywhere (I clean it up with a q-tip) I didn’t really notice a difference til after the 2nd to 3rd time. Even then, it’s not a crazy difference, but I think after 1-2 more uses it will really show. :)

[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.] 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.] I tried it for 2 weeks and noticed a bit of change. I’m sure with continued use, more whitening will occur. If you are sensitive to taste at all, this will be hard product to use. This taste was gross and hard to ignore.

[This review was collected as part of a promotion.] I have been using the product nightly for a week. I like that it’s easy to put on, doesn’t taste weird, and so far hasn’t increased my tooth sensitivity. I wish the whitening was more drastic, but I definitely can see slight improvement with the one week of use.

[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.] I think this is a great product, the moment you apply the gel you feel it and see it turn white, the only problem is that I drink a lot of coffee but I think if you follow the instructions and don’t drink coffee your will see better results than me

[This review was collected as part of a promotion.] I used this religiously for two months straight and didn’t notice any difference in the whiteness of my teeth. It dries down quickly which I like so you don’t feel like you applied it and it’s instantly gone on your teeth once you close your mouth. My teeth didn’t get an increased sensitivity which has happened to me in the past with a lot of other whitening products. The pen was super easy to use and great to carry with me if I was staying somewhere for the night. I liked everything just wish I had seen an actual difference in my teeth.

[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.