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Moumoujus

C11-21 PARETH-3.

Valuable CAS 246538-82-9 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

A lipophilic non-ionic surfactant that acts as an emulsifying agent to blend oil and water phases in skincare formulations. With its low ethoxylation degree of 3 moles, it primarily functions as a texture enhancer and stabilizer in both oil-in-water and water-in-oil systems.

Summary

surfactant emulsifying

Science

Mechanism of Action

Reduces surface tension between oil and water phases through its amphiphilic structure, enabling stable emulsion formation while improving product spreadability and skin feel across various formulation types.

Research

Clinical Evidence

Medium confidence
Effective range 0.5–10%
Optimal

N/A

Key findings

  1. 01 Analogous compounds showed minimal sensitization rates (0.97-1.77% weak positive reactions) in clinical testing

Transparency

Dusting Analysis

Not commonly dusted

As a functional emulsifying ingredient rather than an active, dusting is not a common concern for this surfactant

The Formula

Formulation

Solubility
Oil
Optimal pH 3 – 11
0 7 14

Stability

Highly stable across wide pH range due to non-ionic nature; unaffected by water hardness or high electrolyte concentrations

Conflicts

  • Strong oxidizing agents
  • High concentrations may reduce efficacy of phenolic preservatives like parabens

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Sensitization risk Low

CIR Expert Panel confirmed safety when formulated to be non-irritating; 10% maximum based on highest reported use in leave-on products

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

A reliable emulsifying agent that enhances formulation stability and texture across all skin types with excellent safety profile.

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