Lithium Magnesium Silicate
AKA “
Silicic acid, lithium magnesium salt, 37220-90-9, Magnesium lithium silicate, EINECS 253-408-8, RefChem:885553, DTXCID301030085, 253-408-8, DTXSID50890837, dilithium;dimagnesium;dioxido(oxo)silane
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Ingredient
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Ingredient Facts
Lithium magnesium silicate
AKA: Silicic acid, Lithium magnesium salt, 37220-90-9, Magnesium lithium silicate, EINECS 253-408-8, RefChem:885553, DTXCID301030085, 253-408-8, DTXSID50890837, Dilithium;dimagnesium;dioxido(oxo)silane
Ingredient · Binding · EWG: 1
WHAT IS IT?
Synthetic
Clean
Silicic acid, lithium magnesium salt
Formula
Li2Mg2O9Si3
Mol. Weight
290.80
CAS #
37220-90-9
Form
Powder
See origin →
WHAT'S IT DO?
Functions
Binding
Bulking
Viscosity Controlling
Holds Formula Together
Adds Body & Volume
Controls Viscosity
Antioxidant Protection
Wound Healing
Fights Bacteria
Holds ingredients together
Adds volume
Controls product thickness
Traditional Use
A synthetic silicate compound developed in the 20th century for use as a cosmetic thickener and absorbent. No traditional or historical use prior to modern cosmetic formulation.
Skin Types
●
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
IS IT SAFE?
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
Regulatory Agencies
EWG
CIR
FDA
EU COSING
Health Canada
WHAT'S THE PROOF?
Lithium Magnesium Silicate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Lithium Magnesium Silicate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR