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Moumoujus

C12-14 SEC-PARETH-15.

Valuable CAS 84133-50-6 / EMULSION STABILISING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

A non-ionic surfactant and emulsifying agent that creates stable oil-in-water formulations while maintaining excellent skin compatibility. This amphiphilic molecule excels at solubilizing fragrances and dispersing silicone components, making it particularly valuable in lightweight, non-tacky formulations.

Summary

emulsifying surfactant/cleansing emulsion stabilizing solubilizing

Science

Mechanism of Action

Functions as an emulsifier through its amphiphilic structure, featuring a hydrophobic C12-14 secondary alcohol chain and 15 ethylene oxide units that reduce interfacial tension between oil and water phases, enabling stable emulsion formation and enhanced ingredient solubilization.

Research

Clinical Evidence

High confidence
Effective range 0.5–25%
Optimal

1.2%

Key findings

  1. 01 HET-CAM assays at 3.0% demonstrated mild ocular compatibility in surfactant systems
  2. 02 Human Repeated Insult Patch Tests up to 25% showed no skin sensitization evidence
  3. 03 Formulation studies at 0.5-1.2% achieved non-tacky, silky gel textures without barrier compromise

Transparency

Dusting Analysis

Not commonly dusted

As a functional emulsifier with established safety data, dusting is not a concern for this ingredient

The Formula

Formulation

Solubility
Water
Optimal pH 3 – 11
0 7 14

Stability

Exceptionally stable across broad pH ranges with resistance to hard water, acids, and alkalis. High HLB value of 15.4 provides excellent O/W emulsification and solubilization properties.

Synergies

  • Dimethicone/Vinyl Dimethicone Crosspolymer
  • Fragrance components
  • Silicone powders

Conflicts

  • High electrolyte concentrations
  • Strong oxidizing agents

Safety

Safety Profile

CIR Status
Safe as used
Max tested
50%
Pregnancy
Safe
Sensitization risk Low

CIR Expert Panel confirms safety when formulated to be non-irritating. Primary concern is potential ocular irritation above 10% concentration.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A versatile, well-tolerated emulsifier that enhances formulation stability and texture across all skin types with minimal irritation potential.

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