Stearalkonium Bentonite
INCI: STEARALKONIUM BENTONITE
Reviewed by Kate · Last updated 18 Aug 2026
What Is Stearalkonium Bentonite?
Stearalkonium Bentonite (INCI: STEARALKONIUM BENTONITE) is a cosmetic ingredient listed in the EU CosIng inventory. Benzenemethanaminium, N,N-dimethyl-N-octadecyl-, reaction products with bentonite.
Its declared cosmetic functions are gel forming and viscosity controlling.
Source: European Commission CosIng inventory.
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