I'm crazy about teeth and these are the best brand and line of white strips in my opinion. I love that they really work and stay on and don't make my teeth unbearably sensitive and are comfortable to wear for the allotted time. They make my teeth so shiny bright white!!

I have tried a lot of whitening agents and this is by far my favorite to use, regularly. While it can cause your teeth to be sensitive, you simply just need to give yourself a longer break in between whitening. No worries, it is still just as effective, even with breaks in between.

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

Before I originally started using this product my teeth were very yellow. After using this combo consecutively I can finally say I've gained so much confidence in my smile & their so much whiter. This is definitely beneficial if you're trying to regain confidence in your smile.

These do whiten your teeth. Yet I have very sensitive teeth and they make my teeth hurt so bad! However my mom has normal teeth and she has no issues. Crest 3D Whitening White Strips With Advanced Seal Vivid I inserted a picture of me after using this product. It did make my teeth very white.

LOVE these whitening strips. I didn't think an at-home system would work - these make a huge difference. Have used several times before and will use again. Sometimes teeth/gums do feel oversensitive and need to break for a day or two before resuming.

This really works! The reason for the 4 stars is because it def hurts sometimes. I can only use for about 5–10 minutes or my teeth will be in a TON of pain for days after. As long as I don't go over ten min with them on though, I'm fine and I notice a big difference after only 3 uses

Not sure if these help much, however I still do them from time to time. I'm usually pretty okay with pain, but these will knock it out of me. I can feel my gums pulsating after every use. Follow the directions to a t as well because you never know what these things could do if you leave them on too long.

I was very disappointed as I have used crest strips many times over the past 6-7 years and now am wondering if they have changed the formula as I did not get the results that I have had in the past. I am not a smoker or coffee drinker and use Crest 3D mouthwash, tooth past and Brilliance booster two-three times daily so the whole system should work together. These are the most expensive strips on the market and I will not buy them again.

I've wasted money and time for very little effect, definitely not noticeable effects. Now I can't find who refunds this product. It's supposed to be guaranteed but no address to return the request for refund. I expected better of P&G and Crest. I want my money back to pay the dentist what I should have done to begin with. My son's wedding is in 3 weeks!! What a disappointment!