What does Sodium magnesium fluorosilicate do?

Used in cosmetics as an abrasive, an absorbent and an opacifier.

Is Sodium magnesium fluorosilicate safe?

We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

beauty
cleaning

Sodium magnesium fluorosilicate

CAS 85085-18-3

Concern score

Not assessed — no hazard data yet.

Sodium magnesium fluorosilicate in plain language

What it is: Also known as Synthetic hectorite · Ec 285-349-9 · Laponite XL21 · UNII-U1QJ22MC8E
What it does: Used in cosmetics as an abrasive, an absorbent and an opacifier.
Abrasive
Absorbent
Opacifying
Viscosity controlling
Thickener
Opacifier
Is it a concern?: We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Sodium magnesium fluorosilicate appears in these published regulatory listings.

Recorded in these product areas

Found in consumer products
Beauty
Cleaning

EUCosIngActiveSilicate(2-), hexafluoro-, sodium magnesium salts
- Silicate(2-), hexafluoro-, sodium magnesium saltsSource →
USEPAcommercial use observedEPA CPDat observed this chemical in 4 composition records across product categories including Cleaning products and household care, Personal care. EPA CPDat classifies this chemical for functional uses including Abrasive, Absorbent, Viscosity modifier.
- EPA CPDat observed this chemical in 4 composition records across product categories including Cleaning products and household care, Personal care. EPA CPDat classifies this chemical for functional uses including Abrasive, Absorbent, Viscosity modifier.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Sodium magnesium fluorosilicate. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.

Evidence & sources

No graded research studies for Sodium magnesium fluorosilicate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
Open →
EPA Chemical and Products Database
exposure · updated July 2013
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
openFDA Substance
registry · updated 2026-05-24
Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Open →

Reference links (1)

Openfda substance

in-cosmetics.com

Read →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Sodium magnesium fluorosilicate in a product composition. These are source records, not Greenveil catalog products.

Source records

Named organisations

Cleaning products and household carePersonal care

Typical roles

AbrasiveAbsorbentOpacifyingViscosity controllingThickenerOpacifier

See products using Sodium magnesium fluorosilicate →