I am pretty skeptical about buying products that are supposed to break enamel down and whiten your tooth. This product did work but I feel it didn't make a huge difference for the price you pay.

I honestly do not feel like these give the least bit of a whitening effect. They are high priced and after using them continuously I did not have the outcome I had hoped for. I will be going to a professional next time.

You want white teeth but don't have the money to go to get them professionally whitened well this kit will solve all your problems. Before bed and after you brush your teeth use these strips daily and your teeth will look like pearls

I love the results of this crest 3D whiting. This product whitens more then other products. I don't have any problems using it. I buy and use this product once every two weeks, I'm very satisfied with results.

These are great. They always work well and are easy to use. Results last a decent amount of time and price is ok considering I only need to buy them a couple times a year max.

They whiten my teeth significantly but they make my teeth hurt for a day or two after using! I have even lessened how long I leave them on but they still leave my teeth hurting.

This product works great! Easy to apply and stays on your teeth during the whole treatment. I wouldn't suggest this if you have sensitive gums. Other than that, my teeth are sparkly white.

These whitening strips work well on the teeth, I've used them multiple times and never had sensitive gums either. A little on the pricey side but they do work well do definitely worth the money. Would recommend to others 

If you want white teeth use this. You don't need to get professional whitening done this works the same! I love having white teeth and this is the easiest way to get them sparkling white!

I get worried about getting sensitive teeth when using these, so I don't use them as much as I'd want to. But when I do use them, they work and make my smiler whiter!