Our Sodium Bicarbonate and Kaolin tablets fight dental plaque, save 8 plastic tubes a year from landfill and fight crime*. *not really. They come in Double Mint, a double-barreled Spearmint-Peppermint, Italian Lemon, like a meander through a Mediterranean orchard in the spring with Mama & Charcoal Thyme, with Activated Charcoal to amp whitening! Our Sodium Bicarbonate and Kaolin tablets fight dental plaque, save 8 plastic tubes a year from landfill and fight crime*. *not really.