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Moumoujus

SODIUM CAPRYLYL SULFONATE.

Questionable CAS 5324-84-5 / CLEANSING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

Sodium Caprylyl Sulfonate is an anionic surfactant primarily valued for its cleansing, emulsifying, and foaming properties. It effectively reduces surface tension, enabling the breakdown of oils and dirt for efficient product performance.

Summary

Cleansing agent Emulsifying agent Foaming agent Dispersing agent

Science

Mechanism of Action

As an anionic surfactant, Sodium Caprylyl Sulfonate reduces the surface tension of liquids, facilitating the interaction and mixing of otherwise immiscible substances like oil and water. This action allows it to effectively solubilize and remove oils, dirt, and other impurities from surfaces, while also creating stable emulsions and robust foam structures.

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 4.5 – 10
0 7 14

Stability

This ingredient exhibits robust stability, maintaining integrity across a broad pH range (acidic to alkaline) and demonstrating resistance to both chlorine and oxygen bleach.

Conflicts

  • Strong oxidizing agents
  • Cationic surfactants (forms insoluble complexes, reduces foam)
  • High salt concentrations (potential cloudiness or precipitation)
  • Hard water (reduces surfactant effectiveness)

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Moderate

The Globally Harmonized System (GHS) classifies Sodium Caprylyl Sulfonate as an irritant, specifically indicating potential for skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). SkinSAFE corroborates its classification as an irritant. While some supplier data suggests mildness, the GHS and SkinSAFE classifications indicate a need for careful consideration, particularly in precision skincare formulations. The EPA has noted low concern in cleaning products, but this context differs for cosmetic applications.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy High
Comedogenicity Unknown

Our Assessment

Verdict

Questionable

While Sodium Caprylyl Sulfonate offers effective cleansing and emulsifying properties, its GHS classification as an irritant and unreviewed CIR status necessitate cautious formulation, making it questionable for precision skincare, especially for sensitive skin.

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