This product is old or something! The strips do not stick! Very gummy! I’ve used these before and have never had this issue! Won’t buy from this seller again!

I opened the sealed box today to find only 1 express white strip inside. Unfortunately it was ordered over 30 days ago. Open your box immediately and count the strips inside!

Im not sure how well they would have worked because I was not able to use them more than a couple times. My teeth are not normally sensitive to anything but these whitening strips made my teeth hurt for 24 hours after each use which made it difficult to eat, drink or even talk after.

These strips must be old because i can’t even think they could fake crest whitening strips. They did not work attttt all! Where the same exact ones I bought from target started to whiten in 3 days! These didn’t even have the gel that come on them on them. Wow!

Usually, I use sheer white, but wanted to give this a try instead. I regret it! My teeth and gums were sensitive after using and I had to grab Ibuprofen and sensodyne in order to mask the pain. I have fairly white teeth, but this did absolutely nothing! I won't try this brand again.

It whitened my teeth in only one use, but my tooth became so sensitive I never used the second one. I never had tooth sensitivity, but after using it, I am living a nightmare.

Didn't work. These were definitely questionable. Box was missing the 1 hour strips also.

I was excited to try this product seeing all of these good reviews but after trying multiple strips, there is no difference.. I brushed my teeth before and after use and there was no difference...disappointed.

I agree with everyone that gave this product a 1 star negative review. I will say that it does work, but that comes at a cost of tooth and gum pain. Perhaps I'm just too sensitive for these, so I'll look for the less-potent version of these strips. The price was totally reasonable though.

Up to the pandemic, a box cost a couple of dollars -- it's only plastic, glue, and hydrogen peroxide. A few strips would bleach out coffee stains. This box cost a ton, the glue stayed stuck to the teeth for only a few seconds half the time, and after five strip sets, no whitening.