It worked! And my dentist noticed.
I started using the activated charcoal with a fair bit of trepidation.....really, charcoal is going to whiten my teeth? But it actually worked and significantly. About a week after the recommended 2 weeks of use, I had a routine dental appointment. My dentist looked at me and said: “have you been whitening your teeth?” I said yes and he asked what I was using. I said charcoal. He responded that he’d heard it worked but made a mess.  And it does make a mess.
Rating: 5 stars