Use in Toothpaste
Diatomaceous earth, originally mined as "tooth powder" is a naturally occurring hydrated silica. As a fine gel abrasive, frequently combined with softer calcium carbonate (from chalk) it helps to remove plaque. Milled to a slightly larger size, the grains are more aggressive and are used in tooth bleaching formulations.
Read more about this topic: Hydrated Silica
Famous quotes containing the word toothpaste:
“There seems to be a common strain of miserliness in the American people when it comes to throwing away toothpaste tubes which have a little left in the bottom.”
—Robert Benchley (1889–1945)