[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.] 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!

I had high hopes for the Crest 3DWhite Easy-to-Use Teeth Whitening Pen, but it turned out to be a letdown. After using it consistently for a week, I saw little to no difference in the whiteness of my teeth, which was quite disappointing given the brand's reputation. The twist mechanism is inconsistent, making it difficult to dispense the right amount of gel, and the brush tip tends to create a messy application. The gel itself has a thick texture and an unpleasant taste, which made the entire process uncomfortable. Overall, it didn't meet my expectations, and I wouldn't recommend it if you're looking for a quick and effective whitening solution. There are other products out there that deliver better results with less hassle.

I typically use the Crest Strips but I keep this one with me when I travel or just on the go as I'm a coffee drinker. It's a tad pricey for what it is but I try to avoid teeth discoloration so I tried it out. I don't think I'd buy again but that's just because I often forget to use it.

[This review was collected as part of a promotion.] So easy to use, love the whitening pen and light duo. The strips are usually too strong for my sensitive teeth but this pen and light works wonders. 10/10 I really love how easy it is to use. Brush on and sit for 30 minutes before using the light. The light part is like 5-10 minutes, I always forget to keep track of time.

I use this pen before I put on my night guard (to keep me from grinding my teeth) I wake up with whiter teeth. I am not convinced it's different than any other whitening pen but it works well with night guard. If you have sensitive gums it might be too harsh.

The Crest 3D White Pen is a great product for quick, on-the-go teeth whitening! It's easy to apply and doesn't leave a strong aftertaste, which I appreciate. After consistent use, I did notice my teeth looked a bit brighter, which is exactly what I was hoping for. However, the results aren't as long-lasting as I'd like, so I find myself needing to reapply often. It's a good solution if you need a quick boost in brightness, but for long-term whitening, there might be other options. Overall, very good for short-term use!

[This review was collected as part of a promotion.] It made my teeth look a lot more white and bright it didn't have a bad taste to it I would definitely recommend it to everyone I know thank u#influenster and # crest for giving me it free to try

[This review was collected as part of a promotion.] I’ve been using this product since it arrived, and although I don’t have my teeth so yellow if I saw a difference, it’s fresh, and very easy to use!

[This review was collected as part of a promotion.] I am an avid coffee drinker and this has helped so much it’s got all the subtle staining off and my teeth look so good! I 10/10 recommend to anyone who drinks coffee