These will make your teeth white, but leave them SO sensitive in the process. It is almost not worth it to me to be left with such sensitivity, it was so bad that I couldn't open my mouth in the winter time or I was almost crying in pain. I followed directions and did exactly as the packaging says to do so it is not a good product if you have a history of sensitive teeth.

Legit the best whitening strips I’ve ever used. They made my teeth go from yellow to this beautiful natural sparkling white. I’m no longer insecure about my smile or if the color of my lipstick is making my teeth look even worse. I experienced no sensitivity and will definitely be repurchasing

I use the whitestrips once every year. I feel like they make a difference and I have received sone comments on my teeth. You have yo prep your teeth before use by using sensitive toothpaste and then keep using it during the whitening. Your teeth will hurt some from the strips bit the toothpaste helps.

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!!

This product works wonders on your teeth! However- the taste when you get it in your mouth is awful and causes me to spit a lot! Make sure you Pat your teeth dry to help it stick on. I always take Tylenol before hand and use a topocol numb gel because it makes my teeth and gums very sensitive. I reccomend right before bed so you don’t spend all day achy!!!

[This review was collected as part of a promotion.] These whitening strips are easy to use and effective. I see a huge difference in the color of my teeth just after one application. However, I don’t like how sensitive my teeth feel after use for at least a good 24 hours.

I use this product to take away all of the stains from drinking so much tea lol. While they do work, they do take a little while and it does dry your mouth a little. Regardless, I still recommend this product to those that are looking for results that show.

My oldest daughter was getting married and I wanted to whiten my teeth. I got the 3D white strips and noticed a difference in color even after just the first treatment. They were very easy to use and stayed on well during the treatment. Would recommend them to everybody!

[This review was collected as part of a promotion.] I havent used white strips in years, and theyve clearly improved. I remember them being very flimsy and hard to stick to your teeth. These felt thick and they adhered to my teeth very well. I had immediate results with these, I just wasn't able to use the full treatment due to sensitivity. The first treatment my teeth felt sensitive while I was using it, but I had a few treatments after with no effects. Then I started getting longer lasting sensitivity again. I probably would make sure to use sensitive toothpaste in between treatments. And maybe do the treatments every couple days.

I have been using the Crest 3D whitestips now for 6 days (2 times a day) and I have seen little results. I am a smoker and thought I would try it because I want to make my teeth whiter. I will finish this product but as of now I would not recommend this product to my friends. It is expensive and does not give good results.