Very easy to use. Also quick to do I did in the evening. I like that I had really fast noticeable results after using. My advice take a before and after photo you will see the difference more then.

I've tried many whitening products and this is by the far the best. It made my smile bright white.I'm so happy with the results. I will always buy this product!

I've always been self-conscious about a less than bright white smile, but with Crest 3D White Whitestrips Professional Effects, my worries can be laid to rest! They are fast, affordable, and most of all, effective!

These strips are my favorite. I m 51 years old and these get my teeth as white as I want them. I will continue the use these. They are easy and the sensitivity is not bad.

This product worked well in some spots. But after a few days in other spots it started to wear off and need new treatments to make said spots white again! Over all very satisfied with the product. The spotting issue would be my only complaint!

This literly is the best thing ever because with in one use, my teeth became atleast 3 shades whoter. By the time i was done with my box, it looked like i had gotten my teeth professionally whitened.

Worked well by lightening my teeth almost two shades whiter. I also use in conjunction with the toothpaste and rinse .. I get a lot of compliments now on my smile

I have used these many times in my life. But this 2020 year, I skipped taking care of myself. I took a picture 2 weeks ago and now (2 weeks use). See for yourself, the difference is visible

I used Crest 3D White Whitestrips a few months ago. I was so amazed to see how white my teeth got gradually! I have tried other products but they didn't work. You can't beat this product!

I am on day 4 of using the white strips as indicated in the directions, and I've noticed my teeth have gotten whiter. Although, I would like some clarification as to if you're to brush before, or after strip application??