I definitely saw a change in my teeth after using this product for only two weeks straight. I used it every night, and I'm very satisfied with the results and how it made my teeter whiter. Would definitely recommend!

This product definitely works very well. Minus one star because it hurts my teeth! But the results are worth it. Overall definitely recommend but not if you have sensitive teeth.

The RESULTS that I've received from Crest whiting strips is absolutely astonishing! Although they're a little on the pricey side, they are definitely worth the price tag! I'd definitely purchase this product once more in the future!

This is the only whitening strips that I will use because they actually stay on!! I use this before my workout or on the way to work. It really works and I get asked all of the time what Whitening products that I use and I recommend this

These are great if you are willing to consistently use them. I have sensitive teeth and these did not irritate them at all. It took about 4 days from me to really notice a difference but if you are consistent it's worth it!

My first time getting my teeth whitened was so painful, my gum line was chemically burned. With these whitestrips there is minor sensitivity but overall it's great even only at day 5/14!

These whiten my teeth fairly well. It's not a huge difference but it definitely helps. These make my teeth incredible sensitive and painful if left on for more than 15-20 minutes.

I have very sensitive teeth and my teeth also stain very easily, I normally have to avoid any drinks with coloring. This whitens my teeth so well and is easy to wear. Just put them on for an hour and then bravo.

These definitely work pretty well! You can always tell if the treatment is working until the very end, so I would definitely advise using the entire set right away in the two weeks behind or whatever it says to use them.

I love crest white strips they really get the job done. I used these a week before New Years and everyone gave me so many compliments. I took a lot of pics at the bar smiling really big because I trusted my whitening strips from crest.