Calcium Aluminum Borosilicate
Reviewed by Daisy · Last updated 14 Aug 2026
Mineral-derived thickening agent
EWG Safety Score
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What Is Calcium Aluminum Borosilicate?
A mineral-derived thickening agent consisting of calcium, aluminum, and silicates of the mineral boron. Its safety has been evaluated and was considered safe as used in cosmetics. This dry, inert ingredient is often used in powders and does not penetrate skin.
Clinical Evidence & References
Published Research
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International Journal of Toxicology, September-October 2013 Supplement, pages 65S-72S International Journal of Toxicology, 2013
From the Clinic
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