This product is very effective. But be careful... don’t overuse! I made that mistake and my teeth became overly sensitive and my gums were very irritated. My teeth become noticeably whiter once completed.

I think this product is very practical because you don’t need the trays. It took a while but I got my teeth white by the end. I didn’t have problem while using it and the price is not that expensive.

Works. Noticeable whitening. Some tooth sensitivity however. It does go away after a while and can be minimized wby switching to a toothpaste that support tooth sensitivity

It did make my teeth a little more sensitive but not a lot. I noticed a difference in my teeth being whiter however it wasn’t that great and some people’s

I love these, but they are not for someone that has sensitive teeth… They can give a zing affect which is not comfortable at all, but I’ve been a repeat user in between zoom appointment at the dentist.

If you’re looking to whiten your teeth for a decent price then this is the product. I love using these strips and they are so easy. I recommend trying them out maybe twice a year. They are very effective!!

These saved my teeth. I used to be so insecure about my yellow teeth and I’m just one week they became SO white. My friends and family are always complimenting my teeth after using this product. Will definitely recommend.

These whitening strips get the job done and they are so easy to use. They do make my teeth sensitive but that’s something that comes with whitening your teeth. I don’t love the residue left on my teeth after I remove the strips.

Crest Whitestrips are the brand that I always keep coming back to time and time again! They are easy to use, and they always give me a pretty good result. Overall, this is worth the price and I would recommend.

I have been using for 2 weeks and haven't noticed any change. A couple packs of my strips wouldn't even stick to my teeth. Very disappointing. I'm guessing I received an old product.