[This review was collected as part of a promotion.] The Whitening Pen is very easy to use. You just click the bottom of the pen and wait until the product is on the pen and then brush it on! It whitened my teeth evenly and safely. The only caveat is that you can't eat or drink for an hour after using.

[This review was collected as part of a promotion.] I used this product for upwards of a month and I definitely noticed my teeth are whiter. I’m a coffee drinker so I’m not sure how long they will stay whiter once I stop using but I’m happy with the results I saw so far. Very easy to use. The brush is soft and applies a nice coat. I like that there are instructions on the pen itself. You do have to avoid eating or drinking for an hour after applying- very important to see results.

[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.] This is a great product to use for touch ups or to take on the go. I do find it hard to time consumption with this since you have to wait 60mins for full effects but its still a great alternative if whitening strips hurt too much.

[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 love using my whitening pen from Crest 3d. I use my pen every day, and it's so easy and convenient to use. I just brush on teeth, and I make sure not to eat or drink anything in an hour. So far, my teeth have gotten a little bit whiter with fewer stains as well. I am very happy so far.

[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.] 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 very sensitive gums and I was very excited to try this product since I had control of where to put the whitener. Just within the few days I’ve used it I’ve seen big changes in the color of my teeth. My gums didn’t hurt as well.

[This review was collected as part of a promotion.] The first picture with my hair straight is before I applied the whitening pen and the second with my hair curled is after 2 applications the same day and waiting for 1 hour before removing gel each time. I will say I love how it didn’t make my teeth super sensitive, and it did certainly help break up surface (extrinsic) stains. It was a super easy application. Make sure you brush your teeth before and after using!