Magnesium Chloride

INCI: MAGNESIUM CHLORIDE

CAS Number
7786-30-3 (anhydrous); 7791-18-6 (hexahydrate)
Function
Viscosity controlling, Flavouring, Fragrance functional
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed. Also has GRAS status for food; not restricted in cosmetics

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.

Expert Verdict

Very safe profile at cosmetic-use concentrations; supports skin barrier function and hydration. In acidic conditions, exhibits antimicrobial properties. Abundant in Dead Sea brine and seawater. Stabilizes emulsions and nanoparticles, prevents settling, and shields unstable actives. Good synergy with AHAs/BHAs due to antimicrobial activity at low pH

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Concern Level: Moderate

Regulatory Flags

fragrance-component endocrine_disruptor jecfa_safe

Frequently Asked Questions

Is Magnesium Chloride safe in cosmetics?

Very safe profile at cosmetic-use concentrations; supports skin barrier function and hydration. In acidic conditions, exhibits antimicrobial properties. Abundant in Dead Sea brine and seawater. Stabilizes emulsions and nanoparticles, prevents settling, and shields unstable actives. Good synergy with AHAs/BHAs due to antimicrobial activity at low pH The EU classifies Magnesium Chloride as "permitted". Safety rating: MODERATE.

Is Magnesium Chloride allowed in the EU?

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

What does Magnesium Chloride do in cosmetics?

Magnesium Chloride functions as: Viscosity controlling, Flavouring, Fragrance functional. It is classified as a cosmetic ingredient in our database. CAS number: 7786-30-3 (anhydrous); 7791-18-6 (hexahydrate).

What is the Margin of Safety for Magnesium Chloride?

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.

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