Is Aluminum Magnesium Oxide safe in cosmetics?
Aluminum Magnesium Oxide has a safety rating of "EXCELLENT" in our database. EU status: restricted. US status: permitted.
EXCELLENT
Cosmetic Ingredient
Aluminum Magnesium Oxide
INCI: ALUMINUM MAGNESIUM OXIDE
Aluminum Magnesium Oxide (CAS 11137-98-7) is a cosmetic cosmetic ingredient functioning as Absorbent, bulking agent, opacifying agent. NOAEL 0.18 mg/kg bw/day (primary-source verified against the SCCS opinion); EU Regulation 1223/2009 status: restricted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
View industrial chemical safety profile for CAS 11137-98-7 →
Function
Absorbent, bulking agent, opacifying agent
Editorial assessment
EXCELLENT
Preliminary editorial note — not a computed safety verdict.
Regulatory Status
EU EU Status
restricted
US US Status
permitted
US Notes
Not specifically restricted; CIR reviewed alumina (aluminum oxide) as safe in present practices of use
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Aluminum Magnesium Oxide.
Calculate MoS for your specific formulation with the MoS Calculator.
Pre-Calculated Safety Assessment
Conditional — safe only within SCCS limits: aluminium assessed as AGGREGATE systemic exposure, not per-compound (SCCS/1644/22 Table 18): all cosmetic routes summed = 0.80 ug Al/kg/day vs POD 180 ug/kg/day = MoS 225; safe in all cosmetic categories at maximum use-levels (Tables 4/6); aerosol sprays require under 20% of particles below 10 um
Pre-calculated NOAEL → SED → MoS audit trail for Aluminum Magnesium Oxide across SCCS product categories, with measured dermal absorption where available.
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
10 - 100 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Absorbent
Anti-caking agent
Filler
Editorial summary
Preliminary editorial summary for Aluminum Magnesium Oxide — not a computed safety verdict. See the sourced toxicological data above.
Chemical Function
Absorbent
Filler
Anti-caking agent
Australian Status
AICIS status: listed
Frequently Asked Questions
Is Aluminum Magnesium Oxide allowed in the EU?
Aluminum Magnesium Oxide EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.
What does Aluminum Magnesium Oxide do in cosmetics?
Aluminum Magnesium Oxide functions as: Absorbent, bulking agent, opacifying agent. It is classified as a cosmetic ingredient in our database. CAS number: 11137-98-7.
Is Aluminum Magnesium Oxide used outside cosmetics?
Aluminum Magnesium Oxide also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Aluminum Magnesium Oxide compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
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