Moderate Cosmetic Ingredient NOAEL Data

Magnesium Acetate

INCI: MAGNESIUM ACETATE

CAS Number
142-72-3
Function
Buffering (pH regulator)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed - GRAS (Generally Recognized as Safe) for food use; permitted in cosmetics under general safety provisions

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

10 study endpoints found for Magnesium Acetate. 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 >=0.043 other oral - oral REACH
NOAEL >=3124.71 other oral - oral REACH
NOAEL >=18.23 other oral - oral REACH
NOAEL >=0.0087 other oral - oral REACH
NOAEL >=49.88 other oral - oral REACH
NOAEL >=0.05 mg/kg bw/day oral rat oral REACH
NOAEL >=3600 mg/kg bw/day oral rat oral REACH
NOAEL >=21 other oral rat oral REACH
NOAEL >=0.01 mg/kg bw/day oral rat oral REACH
NOAEL >=50 mg/kg bw/day oral rat oral REACH

Expert Verdict

Very low concern. EWG rating of 1 (lowest hazard). Non-toxic, water-soluble salt with no documented sensitization or irritation issues at cosmetic-use concentrations. Magnesium salt of acetic acid; EC No. 205-554-9; highly water-soluble; stable and compatible with strong oxidizing agents should be avoided; synthetic origin

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Concern Level: High

Regulatory Flags

potential-allergen epa_safer_alternative jecfa_concern

Frequently Asked Questions

Is Magnesium Acetate safe in cosmetics?

Very low concern. EWG rating of 1 (lowest hazard). Non-toxic, water-soluble salt with no documented sensitization or irritation issues at cosmetic-use concentrations. Magnesium salt of acetic acid; EC No. 205-554-9; highly water-soluble; stable and compatible with strong oxidizing agents should be avoided; synthetic origin The EU classifies Magnesium Acetate as "permitted". Safety rating: MODERATE. 10 toxicological study endpoint(s) are available in our database.

Is Magnesium Acetate allowed in the EU?

Magnesium Acetate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Magnesium Acetate do in cosmetics?

Magnesium Acetate functions as: Buffering (pH regulator). It is classified as a cosmetic ingredient in our database. CAS number: 142-72-3.

What is the Margin of Safety for Magnesium Acetate?

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 Magnesium Acetate?

The NOAEL (No Observed Adverse Effect Level) for Magnesium Acetate is >=0.043 other based on a oral study via oral route in rat. A total of 10 study endpoints are available. Source: REACH.

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