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Moumoujus

C12-15 PARETH-10.

Valuable CAS 68131-39-5 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

A versatile nonionic surfactant that acts as both an emulsifier and solubilizing agent in skincare formulations. With its balanced amphiphilic structure featuring a moderate ethylene oxide chain (10 units), it effectively stabilizes oil-in-water emulsions while maintaining excellent skin compatibility across all skin types.

Summary

surfactant/cleansing emulsifying solubilizing

Science

Mechanism of Action

Functions through its amphiphilic molecular architecture, where the hydrophobic C12-15 alkyl chain binds to oils and sebum while the hydrophilic polyoxyethylene head interacts with water molecules. This dual affinity reduces surface tension between oil and water phases, enabling stable emulsion formation and enhanced solubilization of lipophilic actives.

Research

Clinical Evidence

High confidence
Effective range 0.02–5%
Optimal

3%

Key findings

  1. 01 Demonstrated non-irritating and non-sensitizing properties in human repeat insult patch testing for leave-on formulations

Transparency

Dusting Analysis

Not commonly dusted

As a functional emulsifier and surfactant, meaningful concentrations are required for efficacy, making dusting impractical and ineffective

The Formula

Formulation

Solubility
Water
Optimal pH 3 – 11
0 7 14

Stability

Exhibits exceptional stability across broad pH ranges due to nonionic character; resistant to hydrolysis and unaffected by hard water mineral content

Synergies

  • Other nonionic emulsifiers
  • Hydrophilic actives
  • Fragrance solubilization

Conflicts

  • Highly concentrated tannins
  • Strong oxidizing agents

Safety

Safety Profile

CIR Status
Safe as used
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

CIR Expert Panel validation for safety when formulated to avoid irritation; concentration-dependent tolerance with optimal safety profile maintained below 5%

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A reliable, well-tolerated multifunctional ingredient that provides essential emulsification and solubilization properties with excellent safety margins across all skin types.

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References

Sources