Calcium Carbonate

Ingredient Details

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Low hazard to health. Derived from minerals, chalk is degradable and suitable for greywater and septic tanks.

Calcium carbonate is a common substance found in rocks in all parts of the world, mainly as the minerals calcite and aragonite. Calcium carbonate is the active ingredient in agricultural lime, and its presence can usually one of the causes of hard water. Food-grade calcium carbonate is usually quarried from a pure source, such as marble. It is used in some pharmaceuticals as a calcium supplement or as an antacid, but excessive consumption can be hazardous. When used in toothpastes, it can function as a mild abrasive to gently clean teeth. It is also the main component of the shells of marine organisms, snails, coal balls, pearls, and eggshells.

INCI Name Calcium Carbonate
Ingredient Origins Marble
Role Abrasive, Oral Care Agent
Common Name Chalk
EWG Rating 1 - 1
Learn more on the EWG website

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