Honestly, I can see a difference on my teeth after using Arm and Hammer Advanced Whitening toothpaste. It hasn't made my teeth totally white but they are significantly whiter than they were initially. I am impressed! The toothpaste is affordable and I secretly like its taste too! Like all good products, regular use of Arm and Hammer toothpaste will make the teeth whiten over time. It is not a miracle worker but it helps!