The BEST!
I am not getting paid to write this review. I hardly ever write product reviews but for this one I just have to. Maybe it will help someone out. This pen is THE BEST teeth whitening I have ever used. I have used the crest and it doesn't even compare. This pen works super fast im not exaggerating that. The first night I used it within first application I could see a huge difference and my teeth was yellow like pee color yellow from ciggeretes coffee ect. I have tried everything and nothing worked but this pen. Amd you get 2 pens. Also I have very very sensitive teeth so sensitive I have to use sensitive toothpaste and a toothbrush that has literally 1000 bristles that are softer than a feather and this pen doesn't hurt my teeth AT ALL. has a nice mint flavor that's mild and it's super easy to use. Love love this pen. Today was my second day using it and my teeth are now 2 shades lighter. Awesome 😍😃😁
Rating: 5 stars