Aluminum Stearate
Aluminum Stearate (CAS #7047-84-9; IUPAC: Dihydroxyaluminium Stearate) is an aluminum salt of stearic acid used in cosmetic and personal care formulations. It functions primarily as a viscosity controller, emulsion stabilizer, anticaking agent, and cosmetic colorant. It appears frequently in mineral sunscreen products and color cosmetics.
Aluminum Stearate helps stabilize emulsions and control the viscosity of formulations, contributing to improved texture and product consistency. It also serves an anticaking role in powder-based products. Its benefits are largely functional and formulation-related rather than direct skin-benefit claims.
Listed under Cosmetic Restrictions IV/150 in the CosIng database, indicating regulated use conditions in cosmetics within the EU. Users should be aware of applicable regional regulatory limits.
