Ingredient

Amorphous Silicon Dioxide

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Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add amorphous silicon dioxide as an anti-caking agent to keep powdered foods from …

What it is

Amorphous silicon dioxide is a form of silicon dioxide, a naturally occurring mineral. It is manufactured by reacting sodium silicate with a mineral acid, then drying and processing the resulting gel. It is not the same as crystalline silica, which can be harmful when inhaled.

Why it's used

Manufacturers add amorphous silicon dioxide as an anti-caking agent to keep powdered foods from clumping. It helps maintain a free-flowing texture in products like seasoning mixes, salts, and spices.

Health notes

In the US, amorphous silicon dioxide is Generally Recognized As Safe (GRAS) by the FDA for use as an anti-caking agent. International bodies like JECFA and EFSA have evaluated it. At the levels typically used in food, it is not associated with adverse health effects. There are no widespread controversies regarding its use.

Allergen info

Amorphous silicon dioxide is not derived from any of the 9 major allergens recognized by the FDA. It does not contain gluten.

Products containing Amorphous Silicon Dioxide

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Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.