I think these really do work and especially if you are good about doing it twice a week or so. I however have super sensitive teeth and can only do it once a week because it makes my teeth very sensitive the next day.

Try many products for theeth whitening ,then try 3dwhite strips love them told my sister who lives in Austrailia she came over to visit and took back many many 3d strips to Austrailia , That's how good I said White Strips are

These whitestrips were wonderful. The best product that crest has to offer. However, I dont know if I would use them too often as they seemed very strong. Made my teeth pearly white and thats saying a lot as I drink coffee all day every day!

They work great. I have used them so many times. I use them every few weeks or whenever my teeth start to look yellow. They could put more in the box though. To all the other whitening strips I've used this is but far the best.

i love these, and i always buy a box when i'm at the store or grocery shopping. i use them at night and i've found my teeth to get a lot whiter. they're a little pricy but it's definitely worth it, it's amazing.

This is my go to for whitening my teeth. I love how white my teeth appear even after one use. I only use it when I have special events because of the price point.

this helps whiten your teeth and it works but not as much as everyone would assume. you could use the whitening toothpaste as well for a better outcome

I've used these strips my whole life and never disappoint! I always get compliments on how white my teeth are and I've recommended these strips to all my friends and they have said that their teeth have been turned white

My teeth want white instantly after 2 weeks. I was not expecting any of this results at al buh it really surprised me. I had a bit of trouble putting it on but I got the hang of it and I would recommend and buy it again!

Really like how these work so good but they make my teeth very sensitive and I have to stop using them for a few days. Also I can barely keep them on the whole time before they become to sensitive. Recommend though.