Fantastic Product
I've been a long time smoker and coffee drinker. I noticed how bad my teeth were stained and tried different whitening toothpastes and gum but was left unsatisfied. These whitening pens are really easy to use, quick to use, and a little goes a long way. I didn't have any issues with teeth sensitivity. First use made a huge difference, especially on my front bottom teeth. Would definitely recommend this product.
Rating: 5 stars