I got my teeth professionally whitened and it did nothing compared to when I used these! This is better than a professional whitening at the dentist!

My teeth and gums always feels very sore after each use for many hours afterwards. But definitely works.

They are effective if you use this back to back. However can cause some teeth to become sensitive. It works and is cheaper than going to dentist!

Tried these before I started using the mouthwash. They work. You have to sit with them for an hour so the mouthwash is much more efficient

This is my goto for teeth whitening. Easy to keep on and I usually see a difference within a weak. Doesn't make your teeth super sensitive either.

They take off a year of stains in just a quick bit! I love how they don't hurt my teeth. They don't whiten some places and not others.

No better brand than crest for teeth strips. Don't irritate my sensitive teeth too much but still get the job done

These work better than the professional whitening I've tried in a dental office, and with less discomfort. Great product!

Love the product not the price. Does what is says. Generally use 2 times a year. Lower cost only improvement. Nothing else to improve.

This made my teeth super sensitive after one use. It may be super helpful to others but this product was not for me.