Can be painful for sensitive teeth, but I recommend not leaving the strips on for the full time if you do have sensitive teeth! Other than that, great results from this product!

These will whiten your teeth but these will also cause sensitivity in gums and teeth and sometimes you get flashes of pain while using them. But they whiten fast so if the benefits outweigh the discomfort to you then they're worth it.

These whitening strips work really well! I have used them a few times and notice them working very fast! My teeth were a little temperature sensitive.

This product is the best option for me. The 1 hour express makes my teeth too sensitive but this works beautifully. You have to be diligent with it until the product is used up but it'll be worth it.

These definitely make your Teeth super white. The results typically last about 6 months for me too.They can cause sensitively though.When I am using them I usually do every other day to give my gums a break.

This product is really good. It has helped whiten my teeth just enough for me to like it but my teeth don't have that sensitivity that you would have from whitening strips

I've used these whitening strips a few times. They're fast acting and work pretty well. They left my teeth a shade white after using every day for 2 weeks. I only wish it worked faster and wasn't so pricey.

It really works .whenever I have a meeting I use it and I get amazing white bright teeth. I take good care of my teeth but these strips add an extra brightness.

Great product! This whitened my teeth very quickly. Sure did quick results! I also would use the same brand toothpaste for better outcomes! I still use it today and recommend it to those who want teeth whitening fast and affordable.

I have recently began using this whitening kit and so far it has been working amazingly. I'm not a huge fan of the strips themselves but I am seeing results. They are a little pricy but I feel are worth it.