Aluminum Isostearate
INCI: ALUMINUM ISOSTEARATE
Reviewed by Kate · Last updated 18 Aug 2026
What Is Aluminum Isostearate?
Aluminum Isostearate (INCI: ALUMINUM ISOSTEARATE) is a cosmetic ingredient listed in the EU CosIng inventory. Isostearic acid, aluminum salt.
Its declared cosmetic functions are anticaking, emulsion stabilising, opacifying and viscosity controlling.
Source: European Commission CosIng inventory.
From the Clinic
Not sure what your skin actually needs?
Two minutes, a few questions, and we’ll point you at what matters — no guesswork.
Take the skin quizRelated Ingredients
7-Dehydrocholesterol
A cholesterol precursor that supports skin's natural vitamin D synthesis pathway
Acacia Senegal Gum
Functions as a thickening agent, emulsifier, or stabiliser
Acacia Senegal Gum Extract
A plant-derived thickener that stabilises formulations and maintains product texture
Acetylated Hydrogenated Cottonseed Glyceride
Provides Hydration
Acrylamide/Sodium Acryloyldimethyltaurate Copolymer
A synthetic polymer that stabilises emulsions and controls texture in skincare formulations
Acrylates/Beheneth-25 Methacrylate Copolymer
A polymer that helps control texture and consistency in skincare formulations
Learn More About Skincare Ingredients
Explore our comprehensive ingredient glossary to understand what's in your products.
Browse All IngredientsShop Our Products
Find professional skincare solutions at Skintique.