Sodium Stearyl Sulfate

INCI: SODIUM STEARYL SULFATE

CAS Number
1120-04-3
Function
Cleansing agent, surfactant (cleansing), surfactant (emulsifying)
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status restricted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes No specific restriction; CIR Expert Panel concluded safe for use as a cosmetic ingredient

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Potential skin/eye irritation at high concentrations typical of anionic surfactants; if plant-derived, must comply with EU plant-origin provisions

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Concern Level: Moderate

Regulatory Flags

natural-origin

Frequently Asked Questions

Is Sodium Stearyl Sulfate safe in cosmetics?

Potential skin/eye irritation at high concentrations typical of anionic surfactants; if plant-derived, must comply with EU plant-origin provisions The EU classifies Sodium Stearyl Sulfate as "restricted". Safety rating: GOOD.

Is Sodium Stearyl Sulfate allowed in the EU?

Sodium Stearyl Sulfate EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.

What does Sodium Stearyl Sulfate do in cosmetics?

Sodium Stearyl Sulfate functions as: Cleansing agent, surfactant (cleansing), surfactant (emulsifying). It is classified as a cosmetic ingredient in our database. CAS number: 1120-04-3.

What is the Margin of Safety for Sodium Stearyl Sulfate?

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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