If you’re looking for a cost effective way to whiten your teeth, this product may be for you. I’ve tried this product twice and each time my gums became more sensitive. Despite every effort to keep the gel from touching my gums, the product slides because it’s not a true fit.

I use one of these kits typically once a year. I am currently using a kit and am enjoying the whitening effects as much as before. However, the strips don't fit my teeth as well as they did last year, and I can't tell which is for upper and which is for lower. It doesn't say anywhere on the box or on the directions. I've tried both on upper and lower. I settled on the longer narrower one for the bottom and the shorter wider one for the top. It's awkward. I have a harder time getting it to stay put on my lower teeth.

I have been using crest white strips for about 2 years now. I used to smoke cigarettes & I am a big coffee/tea drinker. These have been a complete lifesaver! I was embarrassed about how my teeth had a yellowish tint. After a whole box of strips, over a couple months I was finally so happy about how my teeth looked. They are so pretty & white. I get compliments all the time on how beautiful they are. I would 100% recommend these to anyone that wants professional results without spending thousands of dollars :)

These do get your teeth white but if you have sensitive teeth I would be careful. If you leave these on too long they make your teeth feel not so good. If you use it too many days in a row it makes your teeth feel weak. It does the job of whitening but I only use these once every like 5/6 months cuz they are uncomfortable

I have sensitive teeth and was so surprised but these didn’t make my teeth hurt. I do definitely notice a difference is my shade. I am an avid coffee drinker and these are saving my teeth. I use them every week or two depending but they’re super convenient and easy to use

I noticed a difference within one week. I love the rapid pace of the whitening. I did notice that my teeth became more sensitive but I still really enjoy these. People ask me how my teeth are so white. Crest 3D White Luxe Professional Effects Whitestrips Teeth Whitening Kit

These whitening strips are absolutely amazing. I’ve been using these strips since 2013 and I still love them! They’re recommended by my dentist and my mom and sister who are dental hygienists. They leave a slight tingly feeling after a while of using them, but it isn’t anything that isn’t worth enduring for the whiteness! Crest 3D White Luxe Professional Effects Whitestrips Teeth Whitening Kit

Been using these for about two weeks currently. They seem to be working quickly. They are easy to use and not hard to put on. They stick to your teeth and don’t slide around. I however get some tooth sensitivity while using these for too many says in a row

I have been using Crest Whitestrips for years, and I have received a plethora of compliments about my teeth being so white. I can recall receiving my first compliment about how white my teeth were after the second day of using the product. I knew then that I was going to be a lifetime customer. I am so grateful to express my sincere appreciation for your company creating Crest Whitesrips. I will definitely recommend Crest Whitestrips to others for the rest of my life. Thanks to Crest Whitestrips, I have a whiter brighter lifetime smile.

Unfortunately, I've been a smoker for over 10 years now & this is my first time whitening. Granted, my teeth weren't horribly stained to begin with. I noticed a difference within the first week of using your product. Now that I have used the entire box, there's a huge difference! Thankyou so much & keep the good stuff coming! ;-)