Definitely worked. before and after of 1st use. they work. all and all i love this product

Great whitening strips. i was really impressed with these strips. no sensitivity, and whitening effects are great so far.

Works well, tastes like mint, does its job.

Amazing! I've tried a few different whitening options in my life. The light with gels, the crest strips, etc and nothing seemed to really work. I was completely skeptical when i saw these strips, but i decided to try it since i do love their other products. I've only had 4 sessions and i'm already noticing an extreme difference!

On the money spot on. good stuff! thanks.

Works great, happy with the purchase.

How well the strips function will become clear over time.

The delivery was significantly faster than announced, there are differently shaped strips for the upper and lower jaw, and all strips are packed in individual sheets.

The application is described accurately, as are warning instructions.

This is my first time trying this; if it doesn't work, I will post an update.