Crest 3D Whitestrips Professional White At-home Teeth Whitening Kit, 20 Treatments,20 Levels Whiter

I have used these for about two weeks. I have sensitive teeth so I am using the strips every other day at 30 minute intervals. I have very stained teeth from coffee. I have noticed that my teeth are 1-2 shades whiter. No teeth sensitivity yet either. Happy with my results and looking forward to continuing improvement.

I wore these for 45 mins. for 20 days and thought these alot better than the half hour ones. Now that I have my desired whiteness I will periodically use the half hour ones for booster/maintenance but need these 45 min. ones to make initial whiteness goal.

Absolutely recommend the 3D crest white strips! They have whitened my teeth! They do make your teeth sensitive which I didn't mind at all. I did the full first week which I started noticing a difference and after that did it a few times a week.

Product is very good, just wish it was a little less expensive. I wanted to buy the one for sensitive teeth, but the price wasn't worth the amount of strips you get. It made more financial sense to buy this one.

I used the first strip, and it does seem like it will whiten over time (hence the 2 star and not a 1 star review). Beware, if you have sensitive/unhealthy gums be very cautious to not put the strip on them. I had to remove the strips after 20 minutes because the gum pain was strong enough to worry me. Sure enough the painful parts of my gums turned bright white and the other areas of my gums that were healthier turned red. My teeth feel more sensitive, but I figured that would happen. I have a high pain tolerance so it really surprised me that my gums hurt bad enough to remove the strips early.

The bottom strip doesn't stay on at all, is too small, and this is WAY overpriced for what the material cost is. It's hydrogen peroxide (cheap), food safe glue (cheap), and plastic (cheap). Buy the generic version or a pen/serum version instead.

i dislike that you send my paid product in a bag, and it arrives smashed with whitestrips oozing all over. there will not be another order. send these products in boxes, so the shipper doesn't destroy it. common sense.

I must have sensitive teeth to whiteners because this just made my teeth ache for two days. Followed instructions and yes they were whiter but it was not worth the discomfort, and nothing helped ease it, I just had to wait to stop hurting.

Some of the strips don't stick to my bottom teeth. And some of them do. I've had to open a second package just to get one that sticks. It's kind of stupid.

I woke up at 3am with a crazy pain on my bottom teeth, not very good for me , maybe I am to sensitive for those strips, but man so uncomfortable pain.