Excellent Surfactant

Sodium Lauroyl Methyl Isethionate

INCI: SODIUM LAUROYL METHYL ISETHIONATE

CAS Number
156572-81-5
Function
Ultra-mild anionic surfactant; cleansing agent; sulfate-free alternative
Safety Rating
EXCELLENT

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted in cosmetics. No regulatory restrictions. Ultra-mild profile suitable for sensitive scalp formulations.

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.

Expert Verdict

Sodium Lauroyl Methyl Isethionate (SLMI) is an ultra-mild, sulfate-free anionic surfactant with excellent safety and tolerability, making it particularly suitable for sensitive and damaged scalp formulations.

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Concern Level: None

Regulatory Flags

cosmos-compliant sulfate-free ultra-mild sensitive-scalp epa_safer_alternative

Frequently Asked Questions

Is Sodium Lauroyl Methyl Isethionate safe in cosmetics?

Sodium Lauroyl Methyl Isethionate (SLMI) is an ultra-mild, sulfate-free anionic surfactant with excellent safety and tolerability, making it particularly suitable for sensitive and damaged scalp formulations. The EU classifies Sodium Lauroyl Methyl Isethionate as "permitted". Safety rating: EXCELLENT.

Is Sodium Lauroyl Methyl Isethionate allowed in the EU?

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

What does Sodium Lauroyl Methyl Isethionate do in cosmetics?

Sodium Lauroyl Methyl Isethionate functions as: Ultra-mild anionic surfactant; cleansing agent; sulfate-free alternative. It is classified as a Surfactant in our database. CAS number: 156572-81-5.

What is the Margin of Safety for Sodium Lauroyl Methyl Isethionate?

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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