These work really well! I don't know how often people use them but when I have used them I could see a difference (unedited photo added)

Works great at whitening the teeth. Will make your teeth extremely sensitive but you will see a noticeable difference.

Definitely saw at least 3 shades difference! First time I've had that happen with any whitening product!

I have never felt more confident in my smile than I do today! Thanks Crest for the awesome product that produces results and has an affordable price!

I love these. I actually noticed a huge difference in the color of my teeth. 10/10 recommend if you're looking into teeth whitening!

I use these quarterly along with a (different brand) whitening toothpaste to keep my pearly whites sparkling and bright!

I just love a white smile and this is it you guys it really really helped with my yellow teeth. It really did the job.

They really work! Crest pretty much is the best player in the game for teeth whitening. Best price for something that actually does the job

I have been using crest strips for years, i found i can get a better price and better choice of products by ordering on line.

I actually use these every few days or just in the week before a big event. Even if not used in a row, they are extremely effective