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.
Reference for this information:
International Journal of Toxicology, September-October 2013 Supplement, pages 65S-72S
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