Sodium Methyl Stearate Sulfonate

INCI: SODIUM METHYL STEARATE SULFONATE

CAS Number
Not individually assigned (sulfonated methyl ester)
Function
Cleansing, foaming, surfactant-cleansing (analogous to palmitate sulfonate)
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes No specific CIR monograph; permitted under general cosmetic use

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
moderate

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Same class concerns as sodium methyl palmitate sulfonate โ€” raw surfactant may be harsh alone; formulate with mild co-surfactants

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Concern Level: Low

Frequently Asked Questions

Is Sodium Methyl Stearate Sulfonate safe in cosmetics?

Same class concerns as sodium methyl palmitate sulfonate โ€” raw surfactant may be harsh alone; formulate with mild co-surfactants The EU classifies Sodium Methyl Stearate Sulfonate as "permitted". Safety rating: GOOD.

Is Sodium Methyl Stearate Sulfonate allowed in the EU?

Sodium Methyl Stearate Sulfonate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Sodium Methyl Stearate Sulfonate do in cosmetics?

Sodium Methyl Stearate Sulfonate functions as: Cleansing, foaming, surfactant-cleansing (analogous to palmitate sulfonate). It is classified as a cosmetic ingredient in our database. CAS number: Not individually assigned (sulfonated methyl ester).

What is the Margin of Safety for Sodium Methyl Stearate Sulfonate?

adequate 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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