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Moumoujus

MAGNESIUM LAURYL SULFATE.

Questionable CAS 3097-08-3 / CLEANSING, SURFACTANT - CLEANSING

Magnesium Lauryl Sulfate serves as an anionic surfactant and cleansing agent, primarily found in rinse-off cosmetic formulations. It efficiently reduces surface tension, facilitating the emulsification and removal of impurities from the skin. Additionally, it plays a role in generating foam and lather in products.

Summary

surfactant/cleansing

Science

Mechanism of Action

Functioning as a surfactant, Magnesium Lauryl Sulfate effectively lowers the interfacial tension between disparate phases, such as oil and water. This property enables it to encapsulate and suspend dirt, sebum, and other impurities, allowing for their easy removal via rinsing. It also actively contributes to the creation of stable lather and foam, enhancing the sensory experience of cleansing products.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 3.5 – 7.5
0 7 14

Stability

This ingredient is soluble in water and demonstrates stability within an optimal pH range of 3.5 to 7.5. Structurally similar compounds, such as Magnesium Laureth Sulfate, have exhibited stable foaming characteristics across acidic (pH 3.5-4.0) and neutral (pH 5.5-6.0) conditions, suggesting comparable performance for Magnesium Lauryl Sulfate.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk High

While the Cosmetic Ingredient Review (CIR) Expert Panel has evaluated related compounds like Magnesium Sulfate and Sodium Lauryl Sulfate, a specific safety assessment for Magnesium Lauryl Sulfate itself is not available in the provided data. INCIDecoder classifies this ingredient with a high irritancy potential, indicating a heightened risk for skin irritation, particularly for individuals with sensitive skin.

Your Skin

Skin Compatibility

Yes Normal
No Dry
Yes Oily
No Sensitive
Irritancy High
Comedogenicity Low

Our Assessment

Verdict

Questionable

Magnesium Lauryl Sulfate effectively cleanses and creates lather; however, its high irritancy potential and lack of a dedicated CIR safety review warrant careful consideration for use in precision skincare formulations, especially for sensitive skin.

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