Very effective and a quality brand!! I tried lots of different kinds, but crest works really well!

This product is quick working, good results and cost effective.

My favorite at home whitening kits! So simple and easy to use and it actually works!

These absolutely work to lift stains quickly (exsmoker, drinker of coffee and Mio water flavor)

Works fast and really whitens!! Does cause some slight sensitivity though, but goes away.

Worked wonders on my coffee and cigarette stained teeth.

Great whitening strips! This is the definition of "beauty is pain". It hurts but it is worth it.

always gives wonderful results, definitely worth the cost

I have used this product multiple times. Always whitens my teeth. Easy to use and not expensive.

This honestly hurts my teeth. It whitens really well. But hurts. Maybe I just have sensitive teeth?