[This review was collected as part of a promotion.] This isn’t a game changer but it is a good product. The pen can be a little finicky in terms of product dispersement, and keeping your lips away from teeth while product sets can be interesting. I didn’t have any sensitivity which is great for me, but I didn’t notice dramatic results. 2x a day for 2 weeks would probably be more effective? I don’t think that’s doable for a lot of people. Good for purse size though!

[This review was collected as part of a promotion.] Ive been using the Crest 3D whitening pen for a couple of days and I’m genuinely impressed with the results. The application is easy, the pen allows for precise application on each tooth without any mess. I love that it only takes a few minutes per session. Overall, I highly recommend this product if you’re looking for a safe, easy to use at home whitening solution that delivers real results.

[This review was collected as part of a promotion.] I thought this product was a pretty good introduction in to the teeth whitening game. It was easy to use, and I think better results will be yielded with prolonged use. I thought it was packaged well, and I didn’t find it to bother me teeth. Good job Crest.

[This review was collected as part of a promotion.] One thing I really appreciated about this product is that it doesn’t taste like chemicals. I noticed a minor difference, I’m sure with more disciplined use it would be more effective. It did not leave a weird film on my teeth after either.

[This review was collected as part of a promotion.] So, I was able to grab this product for free. And when it came in the mail, I thought that I was just getting the whiting pen. While it came with the pen and the mouthpiece. So far, I absolutely love it.

[This review was collected as part of a promotion.] I recently tried a whitening gel package that comes in a convenient pen form with a brush tip, making it incredibly easy to apply directly onto the surfaces of my teeth enamel. The package also includes a UV light device, which enhances the whitening process. To use it, I simply apply the gel, switch on the light, and then relax for 30 minutes. After just a week of daily use, I've already noticed a significant difference—my teeth are visibly a shade lighter! While I did experience a bit of sensitivity, which is common with teeth whitening products, I find it perfectly manageable. I highly recommend this product to anyone looking to achieve a brighter smile from the comfort of their home at an affordable price!

[This review was collected as part of a promotion.] If I could give this product a 1000 stars I would! Teeth whitening treatments are expensive when done professional, whitening strips have always seemed to cause teeth sensitivity, and with busy lives it great to find a product that’s easy to use, quick to give results, and affordable! I’ve been using a different competitor brand to whiten my teeth for a few years. Crest is is comparable however I’m more satisfied with their product than the competitor. Although, they both provide the same concept both including a whitening gel and light to whiten you teeth I find Crest to have taken the win on this one! The gel included with crests kit is a pretty large tube of gel compared to the previous one used with the competitors brand. It also tastes GREAT. It’s minty and leaves your mouth feeling fresh. Of course it’s meant to whiten your teeth but some of the gel dissolves inevitably and with theirs it leaves the great freshness feeling. I also love the light included . This one fits easily over the teeth as compared to the one I put completely in my mouth. It also has a timer that beeps when it’s done. The gel is left on for up to 30 min and the light it used for a boost. When I say it boost it boosts! I am a smoker and coffee drinker and within 2 days the color of my teeth changed several shades whiter! I am on day 5 and it’s amazing! If you know a product is that impressive within 2 days that says something. I will definitely repurchase their gel products and won’t hesitate to tell everyone how amazing their product is! The picture says it all! See for yourself!

[This review was collected as part of a promotion.] I had thought this only came with the whitening pen, but it came with a light boosters which was very nice. It didn’t have an odd taste in my mouth like the strips do which was nice and overall, I can see my teeth whitening happening which I usually can never tell with the strips or so!

[This review was collected as part of a promotion.] I am very impressed with the results so far from the Crest Whitening Pen plus Light. I drink coffee everyday so I do have the coffee staining on my teeth. This product gives me hope that I will have better looking teeth. After just a week I noticed a difference. I like this way better than uncomfortable strips. Or gels that hurt my teeth. I will repurchase this so I can stay ahead of future stains as well!

[This review was collected as part of a promotion.] Crest 3D white pen with led light is very easy to use. Click the bottom of the pen for the gel to dispense. Then simply paint your teeth with the pen. After a half hour use the led light, which stays on for 5 minutes. Use twice a day. I did notice a slight difference in my teeth after 2 weeks, but I don’t see anymore difference after 4 weeks. The light died after 4 weeks, and you cannot replace the battery. They should make the light either rechargeable, or with replaceable batteries. I didn’t have any sensitivity or adverse affects. It has a light toothpaste flavor. Not overpowering. I had been wanting to try the pen for a long time, and wasn’t as impressed as I hoped I’d be. A friend did notice my teeth and mentioned they looked whiter.