They are very efficient and effective. I use them at night. They don’t make my teeth sensitive. They work as long as you stick to a schedule when using them.

I love these! They’re easy to use and I’ve used them multiple times over the years for special events or when I feel my teeth are starting to stain. They can cause some sensitivity (so beware if that’s an issue for you)

I get asked ALL the time, how do I keep my teeth so white and this is it!!! I have never had a dentist whiten my teeth and as long as this stuff is around, I never will!!!

Amazing. It takes a while for it to work, I would hope this worked a little faster, but over all, this product is great. If you are sensitive to taste I would most likely avoid. It does the job, but with time.

I think this product is hit or miss. Sometimes I have great results and other times I don’t see much of a difference or it creates tooth sensitivity. Overall, I do still recommend this brand and product.

These really work and can't wait till more information coming out on how during this holiday season, Crest, is offering buy one get one free on the whiteshrips! More info please!

This product is amazing at whitening teeth! I would definitely follow the directions, and if you feel any sensitivity while wearing the strips, remove them, and wait a couple days or weeks until you redo them. Besides that, they are amazing!

The price is too pricey but they are still good. It’s a bit uncomfortable using the strips but it does whiten. You have to use it for a good amount of time and make this a routine to maintain your teeth white.

I went to the dentist and even though I'm a smoker he said my teeth were very white and asked where I had them whitened.. I said Crest whitening strips

Love these strips. Not too harsh on my teeth (I have sensitive teeth) these didn’t make them ache. Whitening strips are always a little uncomfortable but these are definitely worth it.