Review (1/5): Too painful to use! Wish they'd bring back the night effects whitening kit on Amazon :(
I've used the Crest Night Effects whitening kit with great results before but since I couldn't find it on Amazon anymore I tried the whitening strips. OUCH!!!! I don't have sensitive teeth at all but within the first use of this product I was starting to have pain in my teeth.
I didn't want to waste my money so I continued using it as directed for a couple more days. The pain and discomfort was unbearable...I couldn't focus on anything all day due to the constant aching in my teeth. It didn't matter if I was eating or drinking anything hot or cold...my teeth just hurt constantly.
I discontinued using the product after that and threw it away. WHAT A WASTE OF MONEY - VERY DISAPPOINTING! I would not advise trying this product. Stick to using the Night Effects whitening kit if you can find it anywhere...it's a little messy but it's effective and doesn't cause tooth pain like the whitening strips seem to do.