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Sodium Magnesium Aluminum Silicate
AKA “Silicic acid, aluminum magnesium sodium salt, 12040-43-6, EINECS 234-919-5, DTXSID70890672, EC 234-919-5, RefChem:182980, DTXCID601030977, 234-919-5, aluminum;magnesium;sodium;dioxido(oxo)silane, Sodium magnesium aluminosilicate”
Ingredient
Ingredient Facts
Sodium magnesium aluminum silicate
AKA: Silicic acid, Aluminum magnesium sodium salt, 12040-43-6, EINECS 234-919-5, DTXSID70890672, EC 234-919-5, RefChem:182980, DTXCID601030977, 234-919-5, Aluminum;magnesium;sodium;dioxido(oxo)silane, Sodium magnesium aluminosilicate
Ingredient · Absorbent · EWG: 4
Synthetic
Not Clean
Silicic acid, aluminum magnesium sodium salt
Formula
AlMgNaO9Si3
Mol. Weight
302.53
CAS #
12040-43-6
Form
Powder
State
Dry Powder
See origin →
Functions
Absorbent
Anti-Inflammatory
Antimicrobial
Fights Acne
Absorbs excess oil
Traditional Use
Developed in the 20th century as a modern clay-derived ingredient, building on the historical use of clays in skincare (used for thousands of years in Egyptian and Chinese medicine for oil absorption and skin purification).
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR