tried once not a huge difference but my uncle has used this lots of times and has worked like a gem !!! his teeth are white

I would totally get them again. They stay in place and they worked one of the better things I've tried

I really like these and think that they do they trick. Need to use them more weekly though to see a change.

I've seen a difference every time that I use these although I am very busy so rarely use these since you have to leave it on for a little bit.

This brand was actually doing the job I kept getting compliments that my teeth have been looking whiter than what they were.

These are super effective if you keep up with them! I try to use these once a day and I noticed a difference after a week!

Crest whiting strips are good and you will get results, I just personally prefer to do in office whitening.

Love these whitening strips. I see a difference after the first strip i use. If you stay consistent you'll love the results.

Wowwww. I was amazed at how much whiter my teeth looked after one week!!! Love these i recommend these a d im on my 3ed package.

i always notice a difference after using these, but after i stop for a couple weeks i feel like my teeth do go back to their original.