Yes, some people do this with activated charcoal powder...
Manisha Khanna 20 days ago
Hello there, Mackenzie Kelly! I really did not know about scrubbing to get whiter teeth... but thanks for posting this question, it made me curious and had me searching high and low for this stuff on the internet. I found out that there is a coarse, powdery product called "teeth scrub" that contains activated charcoal powder. It helps teeth whitening. Lots of love, Ananya xoxo
Ananya Prakash 15 days ago