I have used crest 3D whitening strips maybe twice within the last 4 years and my teeth are still very white! It stung my gums a little but at first but went away after a few minutes. I will buy them again when I feel the need to touch up!

These are inexpensive and highly effective! I use them once every few months to maintain whiteness. Be careful if you have sensitive teeth not to wear longer than the recommended time.

I notice a difference after a few uses, but I hate the taste of these, and sometimes they hurt my teeth/gums. I do think the taste is worth the results though!

pretty nice and easy for an at home treatment! although i left it on for too long once and my teeth became sensitive so definitely go by the instructions

These strips get the job done. My teeth will look visibly whiter after use and it can stay that way as long as I use a whitening toothpaste. This product is definitely pricey so keep that in mind though.

My teeth are visibly so much whiter after each use. It doesn’t bother my teeth or gums and stays on very well throughout the treatment. I used these for prom and it worked well. My teeth are pretty white because of these.

These strips are the real deal. They brighten my teeth right away, leaving a whiteness that lasts for months. They can make my teeth quite sensitive, so I typically use them every few days to give my teeth a break.

Nothing beats Crest Whitestrips, NOTHING! If you are trying to whiten your teeth skip the gimmicks and just go straight to the white strips. It’s not even worth trying anything else because this stuff is the GOAT

I bought these to see how well they whitened. I used them for a few weeks and honestly couldn't tell much difference. I do like their tooth paste though.

Been using this product for 5 years now. Only use it once a year because if teeth sensitivity. Does excellent job and makes my teeth super white. Leaves my teeth sensitive for a few days but the results are worth it