Aluminum Stearate
Reviewed by Daisy · Last updated 14 Aug 2026
Aluminum stearate is an aluminum salt of stearic acid that functions as a thickening agent and helps stabilise products.
EWG Safety Score
What Is Aluminum Stearate?
Aluminum stearate is an aluminum salt of stearic acid that functions as a thickening agent and helps stabilize products.
Clinical Evidence & References
Published Research
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International Journal of Toxicology, November 2016, pages 16s-33s International Journal of Toxicology, 2016
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The Journal of Clinical and Aesthetic Dermatology, November 2008, pages 18-21 The Journal of Clinical and Aesthetic Dermatology, 2008
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Journal of Toxicology and Environmental Health, Part B, Voluem 10, Supplement 1, 2007, pages 1-269 Journal of Toxicology and Environmental Health, 2007
How widely it's used
Regulatory information
Standardised cosmetic-ingredient identifiers used by regulators.
Show identifiers
- INCI Name
- ALUMINUM STEARATE
- INN Name
- aluminium monostearate
- EC Number
- 230-325-5
- Function
- Anticaking, Cosmetic Colorant, Emulsion Stabilising, Viscosity Controlling
From the Clinic
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Aluminum Starch Octenylsuccinate
Synthetic powdery thickening agent
Aluminum/Magnesium Hydroxide Stearate
A stabilising compound that strengthens skin barrier function and protects against irritants
Ammonium Acryloyldimethyltaurate/Carboxyethyl Acrylate Crosspolymer
A film-forming polymer that stabilises texture and consistency in skincare formulations
Ammonium Acryloyldimethyltaurate/VP Copolymer
Synthetic polymer and film-forming agent
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