Charcoal toothpaste

I had read about this toothpaste in the August issue of National Geographic, and wanted to try it. I thought it'd be easy to find, but after checking out about 10 places that sold toothpaste, I gave up. My aunt called National Geographic in Seoul to track it down and found the toothpaste at a place called Orga Whole Foods about 30 minutes away from metropolitan Seoul in Bundang (?). Bundang!

Charcoal has cleaning and odor-removing properties. That part's great. The toothpaste left my mouth squeaky clean! Good stuff...until charcoal's moisture sucking properties kick in. About five minutes after I brushed my teeth, my mouth was as dry as a desert and my lips were starting to chap.