Magnesium Aluminum Silicate

Magnesium Aluminum Silicate 1
Magnesium Aluminum Silicate 2
Magnesium Aluminum Silicate 3
AKA: Aluminii magnesii silicas, Magnesium aluminium silicate
Synthetic
Clay
Clean
Silicic acid, aluminum magnesium salt
Solubility Insoluble
Formula
AlMgO4Si+
Mol. Weight
143.37
CAS #
1327-43-1
Form
Powder
State
Other Solid
Functions
Absorbent
Anticaking
Opacifying
Viscosity Controlling
Anti-Inflammatory
Moisturizing
Strengthens Barrier
Absorbs excess oil
Prevents clumping
Creates creamy opacity
Controls product thickness
Traditional Use
A modern synthetic mineral compound developed as an alternative to natural clay minerals for cosmetic use; functions as an absorbent and suspending agent based on traditional clay skincare traditions.
EWG
1
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
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR