Sparkly!
I decided to go ahead and try this whitening toothpaste that's black powder! It starts out as dry  charcoal-like powder, you wet your toothbrush (dip it) and brush your teeth for 2 minutes. It's a little gritty at first, but it does quickly foam like normal toothpaste. I do recommend that you go over your teeth after your done with just water so you won't have black lined gums. My teeth feel pretty good honestly.
Rating: 5 stars