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Aluminum magnesium oxide

CAS 50988-21-1

Also registered as 2 other CAS numbers

141437-63-0 · 11137-98-7

Aluminum magnesium oxide chemical structure

Concern score

Not assessed — no hazard data yet.

Aluminum magnesium oxide in plain language

What it is

Also known as Magnesium aluminate · Spinel

What it does

Used in cosmetics as an oral-care ingredient, an absorbent and an anticaking agent.

  • Oral care
  • Absorbent
  • Anticaking
  • Bulking
  • Anti-caking agent
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. Aluminum magnesium oxide appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • EUCosIngActiveAluminium magnesium oxide
  • USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Absorbent, oral care, Filler.
    • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Absorbent, oral care, Filler.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 Aluminum magnesium oxide. 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 Aluminum magnesium oxide yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

5 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →
  • EPA Chemical and Products Database

    exposure · updated 2019-12-20

    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 →
Reference links (3)
Openfda substance

en.wikipedia.org

Openfda substance

pubchem.ncbi.nlm.nih.gov

Openfda substance

trans-techinc.com

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 Aluminum magnesium oxide in a product composition. These are source records, not Greenveil catalog products.

Named organisations

1

Typical roles

Oral careAbsorbentAnticakingBulkingAnti-caking agent
See products using Aluminum magnesium oxide →