SmileDirectClub Teeth Whitening Kit - 8 1.4ml Gel Pens - Professional Strength Hydrogen Peroxide - Pain Free and Enamel Safe - Up to 9 Shades Whiter in 1 Week

Works great if you stay on it whitens your teeth quickly. Don't spend hundreds of dollars getting it done somewhere. However a few of the tubes are not when I turn the thing the gel is not coming out. I'll probably just cut the end off.

This really works. I have tried one other whitening product with so so results. SmileDirect pens worked with faster results with only 5 minutes per day. (check manufacturer's instructions) I have no problem with sensitivity. I would recommend this product.

I bought this same product a few years ago and after quitting for a while, I noticed that I should probably start up again. That's what happens when you're a daily black coffee drinker I guess! When you follow the timing directions, this product works great, and I could definitely see a difference in my teeth. Make sure that you get the led mouthpiece too since it really works best with it.

By far my favorite teeth whitening product. There is no other product that really shines my teeth and it’s really simple 10 minutes a day

I had my teeth professionally whitened at the dentist office, ( different brand). So I can only speak to using this for maintenance. Even though you get a maintenance kit from the dentist, I wanted something cheaper that I could use throughout the year. The whitening results from this are not as good professional maintenance tube ( you won't go down any more shades). Yet, a once a week "touch up" with this has kept my professional results. The tubes have only a small amount of product. I can get about 3 uses out of each tube into my whitening mold. I usually paint a little on each tooth and then brush the mold with it ( this pen has a brush - it's not a syringe style like the Philips so you have to brush it inside the mold). I leave it on for about 30 minutes and it has kept my results through my coffee consumption.

Really work. Quick and easy to use

I’ve been using this brand whitening gel pens for probably the last 5 years. Every 6 months or so. In the past, I’ve loved them. No teeth sensitivity, and noticeable results. This last batch I got is a new formula. You can just tell. There’s a new chemical taste and smell to it and is unpleasant, so bad that I almost decided not to use them at all, and then did anyway. And after 5 days of treatments my teeth are too sensitive to continue using the product and I don’t see anywhere near the results I used to get with these pens. You would see the results beginning after the first day of use, and I’m only noticing a small improvement on day 5. They changed it completely. Such a bummer because it was perfect before and I won’t use this brand again.

I’ve been using this whitening with the LED light for years. I highly recommend it! I have extremely sensitive teeth and it doesn’t hurt