Honestly, I've never been in such tooth pain. Used it ONCE for the correct amount of time, and the pain kept me up all night. I still can't eat or drink and it's the next day. My teeth are on fire and my gums are throbbing.

This product isn't for me. However I do have very sensitive teeth, so it may be fine for others. I'm not sure how effective it is, due to the fact that I couldn't keep them on. They were too uncomfortable for me

I wish I could see more of an improvement with these white strips. They do make my teeth more sensitive to hot and cold. The price isn't over the top but I don't know if I will keep buying these

Pricey but this works. Made my teeth sensitive though I followed the instructions. Exploring my options to whiten my teeth at home. Taste is doable. Not too sticky.

The whitest smile in years after using Crest Whitestripes. My co-workers comment all the time how white my smile has been. I, now, am ready to make another purchase. I will always go back to using this product.

This is great for whitening teeth. If used daily you get faster results. Worth every penny and would definitely recommend this to everyone. If you want a whiter smile this is a great suggestion. I would definitely buy this again.

I had a stain from my braces and I was self conscious of it. I used the whitening strips to help even it out and I get compliments all the time on how white my teeth are. I don't even do it that consistently

Uneven stain removal which could have been my fault, but I'm confident I used them correctly. I will keep trying, but I don't think the money is worth it if I have to buy many times. I like how it doesn't burn and seems easy to use.

I used these white strips three years ago and to this day still receive compliments DAILY about how white my teeth are! DAILY! I also used the tooth paste and the mouthwash and I think that helped a lot too! HIGHLY HIGHLY RECOMMEND

I had put off my dental work and had family issues come up that made me totally forget to bleach to prepare for it. I bought these 5 days before and used them and can't believe how well they worked! And no sensitivity at all!