Customer Reviews
No Pain No Gain 
2008-07-26
I have found Crest Whitestrips of any version to work really well for me! When I got my braces off my teeth were discolored and i used Crest Whitestrips Classic to make them really white!! There was a little gum sensitivity but it wasn't TOO bad. However, now I am using Crest Whitestrips Premium and WOW by the second day it hurt my gums SO BADLY! I toughed it out and tried it the third day again, but this time i took a Q-tip and i put Vasaline carefully on JUST my gums. It made due for a protective coating and significantly reduced the pain while the Creststrips were on! However my gums are still so sore that i can't even brush my teeth...basically...my Vasaline trick works wonders BUT the Crest Whitestrips Premium are 2X stronger than the Crest Whitestrips Classic, so if your gums/teeth are sensitive I recommend getting the Classic because they really do work for me!
Try This Tip for Best Results 
2008-06-27
I've read several comments by people who said they had trouble keeping the strips in place, I came up with a suggestion that should help anyone who happens to have that problem.
Before placing the whitestrips in place, gently pad a square of toilet paper or tissue to the front and back of your teeth, try to get those teeth as dry as possible. Maintain a big smile so that your teeth are showing, you want to make sure that your lips don't touch them yet. Place the whitestrips in place, one at a time, try allowing for an equal amount of strip for the front AND back of the tooth. Push it firmly in place, and use your fingernail to gently push the front of the strip into the spaces between each tooth (to ensure that the gel makes its between each tooth, and not just the front surface). I have found that by drying your teeth well, the strips won't move the slightest bit, compared to when I first tried them and they slid around a little.
The Whitestrips work well, I noticed a big difference after only five days. Although my teeth weren't that stained before, I was always a little self-conscious about smiling with my mouth open when talking to people. But now, I do it with no hesitation, and have a lot more ladies complimenting me on my smile. It's great what these little whitestrips can do for your self esteem, I'd recommend them to anyone in a heartbeat.
Great! 2008-05-24
I went with this (14day classic) set over the premium (7-10day) set because of the milder peroxide strength and boy am I glad I did. Even with the classic set, I was getting sensitive teeth (especially the tops of the bits of the molars that get covered by the strips). As a result, instead of using the strips twice a day like you are supposed to, I only use one set of strips a day (so it will take 28days for me). So far so good - my teeth appreciate the once-a-day regimen and my teeth have been noticeably whiter even after the 3rd day. I do wish the strips for the lower teeth were wider. Highly recommended!
AWESOME! 2008-02-25
I love these. I've always been self-conscious of my yellow teeth, and I've wanted to try these for a while. Someone told me they made their teeth sensitive for a long time, so I wasn't sure about them. My teeth got a little sensitive about the 8th day, so I stopped for a few days and started again, using them once a day, (which is what the package suggests). They've been fine since then. I tried a sample of Listerine White Strips before these, and they were disgusting and didn't dissolve well at all. I like these way better. My teeth are so white. I love that I don't have to feel self-conscious about them anymore. My husband noticed the difference, too.
Starts brighter, then gets whiter 2008-02-13
Got these for my husband. He has perfectly aligned teeth (naturally) and has never had a cavity. However, we were starting to call his teeth his "pearly yellows." I guess he drinks too much espresso.
Anyhow, we bought the classic strips because of the lower level of peroxide - he is sensitive to stronger amounts (it makes his gums hurt). Within the first 2 days we saw his teeth starting to look brighter, but not really whiter. It wasn't until around the 5th day that we could say, "wow" - this stuff is really working. He didn't even need the full 2 weeks - his teeth are quite white now. He uses the remaining strips once per week to maintain the whiteness.
:/ 
2008-01-08
today was my third day using them...the first day was not bad. the second day i started feeling pain, and today OH GOD!!! its horrible. i feel like crying from how much my teeth and gums hurt! today when i put on my second round of strips, i felt REALLY BAD pain in my lower gum like almost a burning sensation, and very irritating...so i moved the strips around and moved them off that spot...i was still in great pain. when my 30 minutes were over i noticed that the spot on my gums where i felt a burning sensation, the whitening gel indeed did burn off that spot on my gum and i was bleeding. now im experiencing the worst pain EVER!! :[ im going to the dentist tomorrow because im scared of what it did to my gums and teeth after only 3 days!
Not as bad as they say:) 2007-12-31
Crest Whitestrips Dental Whitening System, 56 Strips
I was a little scared about these strips after I read all the reviews. My husband bought them as a birthday present as a referral from my sister who uses them. I read up a little bit so they sat in my bathroom cupboard, for about two months. I decided to use them and they weren't as bad for me and everyone else has experienced. They did make my teeth whiter and people do ask what I used in order to get them that white. I had sensitive teeth before I used these and was worried that it would make it worse but it stayed the same. I guess its all a personal experience, I wish that I would have used them sooner and not let all of the reviews keep me from trying a great product!!
They work but... 2007-11-26
The crest white strips do work but the problem I have is I cannot get the strips to stay on!!! I try not to move my mouth and tongue much, but you have to have some movement, and when I do, the strips move around and that nasty gel gets in my mouth yuck!!! I wish crest would make some sort of tray that would hold the strips against your teeth better. Other than that, they really do work.
WARNING; beware product 
2007-10-21
I used the strips as directed for five days and the teeth were whitening. No problems except excessive drool and unpleasant removal of remaining strip at end of thirty minutes.
Then at the end of the fifth day's use there were two chemical burns, each just under a half inch diameter each, on the inside of my lower lip. I stopped use and called the company. They were polite and apologetic giving me a complete monetary refund. HOWEVER, it was a painful week before the sores healed especially the first two days when eating was difficult.
I would definately not recommend the strips, even if this was a rare occurance.Crest Whitestrips Dental Whitening System, 56 Strips
Well Worth the money 2007-08-06
Definitely worth the money to whiten your teeth.
Pros:
Fast
Semi Convenient
Pain is not that bad
Cons:
Make you drool (Use cotton balls in your mouth to soak up all that saliva...)
Hard to stay on
I DO NOT recommend using while commuting, too annoying
Overall, a product worthy of my hard earned 20 dollars. Just a hint, do either top or bottom first (less yucky feeling)
