Work like a charm. The sticky grip on your teeth allow for them to not move while doing other tasks. However they would leave a residue that I would have to scrub to get off. Whitened my teeth considerably within those 12 days. Will use again

I have very sensitive teeth and the Crest 3D whitening strips are the only whitening strips that don't make my teeth hurt. I have been using this product for about 2 years and I would recommend to anyone wanting a whiter smile.

I've been using It for 5 days now and already see a huge difference. Although it's expensive and not a necessity, I am pleasantly surprised at how well this works and am eager to see my results after I am finished

They are very effective. I was surprised that they actually whitened my teeth quite a bit especially for the price point. I recommend them for sure and I will keep buying them.

The white strips caughted sensitivity to my teeth. The price is expensive and I was not satisfied with how they worked. This was a first time for me using them. I would not buy again.

Whitenings your teeth but makes them extremely sensitive. Loved the effect but cried when I had them on for like 4 minutes. So much pain cake from this product. Would rather bleach my teeth than use t hi s

Holy cow, do these hurt my teeth! I've been trying to whiten my teeth for a while now and tried these out. They're pretty pricey but much cheaper than professional whitening. They brighten them a little but at the cost of super sensitive teeth!

I swear by these whitening strips. I've been using them twice a week for the past couple years and get compliments a lot on how white my teeth are. I think they work just as good as professional whitening done by a dentist

Love these white strips! I use them every time I want to give my teeth a little extra love in color. It definitely works - I use it last thing at night and it's never given me any sensitivity issues!

This definitely whiten your teeth but are hard to rip off and kinda pricey. I've used this many times. Makes my teeth pretty sensitive so that's uncomfortable. If it didn't cause that I would say it is 5 stars