I have used this product as instructed, twice a day every day. While my teeth do seem less yellow, they are definitely not white. I had to be careful not to get the solution on my gums; after the first time, it would sting my gums. Easy to apply, though. And, doesn't taste badly at all!

This worked great for me! I've used so many other whitening products, but this is hands-down the best, especially for the money. The only "down" side is, I found it hard to use..to pop the case, I had to use my teeth...oops..and it was hard to push out. Other than that I loved it and would definitely use it again!

Love this product! I used it last year and it did an amazing job of whitening my teeth. I purchased it again this Spring to do a touch-up. It really works! It is easy to reach those 'hard to reach spots' and comes out evenly, not like the whitening strips, or guards. It is a bit harsh on my gums, so I am just very careful with the application. This product is simple to use and can be used anywhere! Small and convenient it can be used while traveling or at home. I plan to use this product every 6 months and as needed. As a coffee, tea and soda drinker, my mouth feels so much cleaner after using this product. Highly recommended! I love that the price has come down!

very easy to use and convenient

I hadn't tried a whitening system in years, as I had found it annoying to set aside so much time to sit around with chemicals on my teeth. I have better things to do. This system takes only a few minutes of my time to apply--then you are done. You do need to wait 20 minutes before eating and drinking, but you are getting on with your life. Further, the whitening affects were great. Each day I felt that surely my teeth were as white as they would get, but each day they continued to get brighter. After the 10 days, all the yellow was completely gone from my teeth. I couldn't be more pleased. This is not time consuming, it is easy, and it works. Why wouldn't I use it?! Other reviews complained of minimal effects and gum sensitivity. I did not experience this. I had amazing affects and no sensitivity at all. The reality is that we are all genetically different, and so one product will not work identically on us all. Further we all have different sources of stains on our teeth. But if you are worried about the reviews that are negative- don't. And, for the reasonable cost, why wouldn't you give it a try, if it works as great for you as it did for so many others?

The sale price enticed me to try this product. For the most part, I have excellent teeth; I'm a non-smoker. But one of my front teeth is "dead" and discolored (grayish), so I was hoping to whiten it up. I applied this product to all of my smile, but paid EXTRA attention and effort on the discolored tooth. End result? My teeth did brighten, and I think the discolored tooth lightened some -- but not nearly enough so that it is not noticeable. For me, I need something more.

Easy to use, did not work as well as stated. I expected better results

I did not see any results and almost used all the tubes. Luckily I bought it from some where else and was able to send it back!! I used rembrandt after this and I saw results within the first use.

very easy to use, takes less than a min. to apply and your done. No messy strips or trays to wait on.

This product is better than most in terms of sensitivity but my gums were still slight irritated. It worked really well after the first 2 ampules but after that.. I don't think i noticed much of a difference so I would use 2 a week to help the product last. Not bad for the price.