I've used these for years and honestly they never fail to make my teeth look flawlessly white. It lasts for a couple of days, and I skip a few days in between but I love it. I don't use them very often due to having sensitive gums but find that 1-2x a week is perfect to avoid increased sensitivity!

These work fairly well. They do what they say they should but if you don't use them for a few days then you will start to notice that your teeth seem to loose whiteness. Idk if that's just for me but that's the only thing I wasn't a huge fan of. Other than that they're easy to use and seem to do a pretty good job and work quickly.

Love this product! I use it every other day, once or twice a year. In my experience, using it every other day prevents any sensitivity from developing. Also, this product doesn't doesn't over-whiten and leaves a more naturally white appearance than other whitening products I've used.

I've always been self conscious about my teeth and I've struggled trying to maintain them bein white, but they've always been a bit discolored, as if the enamel wore off or something. So I decided to give Crest white strips a try, especially because I'm a fan of Crest in general, but I wasn't a fan of these.  I drooled excessively while using them and I didn't have the patience of waiting around forever for them to work. I didn't like the feeling of them on your teeth, like slimy. Make sure you wear them the right way though and wear them for as long as the time tells you. They're really expensive too, so look for deals or try asking your dentist if they sell them because you might get them cheaper through there. I wouldn't try wearing these in public or at work in case you need to talk to someone because that was also something I struggled with. 

I really like this product and it was recommended to me by others. It made my teeth really white which I love! I have sensitive teeth so if I need to space it out between using. It can hurt your teeth if you use it multiple times a week. It's worth the price because it comes with so many!

LOVE! These work soooooooo well! You can see a noticeable difference in literally just one use, and you have a whole new smile by the end of the box! They are super easy to use and They only take 30 minutes of your time. I definitely recommend these!

I love this whitening strips they really help my teeth bring out their natural white pearly color they're a little bit pricey but I totally recommend them the value is higher than you could imagine I would recommend this to anyone who needed white teeth

I don't know if it's just me but whitening products don't seem to make my teeth whiter. I gave three stars because these don't make my teeth sensitive and they are easy to use. Do they whiten? I have yet to see a difference. I would rather spend the money and get it done professionally.

Easy to apply and use! I always leave them on a little longer than the suggested 20 minutes to maximize the effects. After using the strips just 3 times you will notice a difference (if you don't space them out too much). I've used this product many times and keep going back to them.

What is the first thing people notice? Your skin and your teeth. If yoiu want to make the best impression ever then get your teeth super white with Crest White Strips. I use Professional Effects and they are life changing. My teeth are beautiful and I owe it all the Crest, thank you! Super easy to use, fast and no mess.