Excellent Cosmetic Ingredient NOAEL Data

Aluminum Magnesium Oxide

INCI: ALUMINUM MAGNESIUM OXIDE

CAS Number
11137-98-7
Function
Absorbent, bulking agent, opacifying agent
Safety Rating
EXCELLENT

Regulatory Status

🇪🇺 EU Status restricted
🇺🇸 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 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
negligible
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

2 study endpoints found for Aluminum Magnesium Oxide. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL 1000 mg/kg bw/day oral rat oral REACH
NOAEL 1000 mg/kg bw/day oral - oral REACH

Expert Verdict

Inhalation concern if used in loose powder/spray products (respirable particle size fraction); ensure particle size >10 µm for safety

⚠️
Concern Level: Low

Frequently Asked Questions

Is Aluminum Magnesium Oxide safe in cosmetics?

Inhalation concern if used in loose powder/spray products (respirable particle size fraction); ensure particle size >10 µm for safety The EU classifies Aluminum Magnesium Oxide as "restricted". Safety rating: EXCELLENT. 2 toxicological study endpoint(s) are available in our database.

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.

What is the Margin of Safety for Aluminum Magnesium Oxide?

not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

What is the NOAEL for Aluminum Magnesium Oxide?

The NOAEL (No Observed Adverse Effect Level) for Aluminum Magnesium Oxide is 1000 mg/kg bw/day based on a oral study via oral route in rat. A total of 2 study endpoints are available. Source: REACH.

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