Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle
Moumoujus

C14-15 PARETH-4.

Valuable CAS 68951-67-7 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

A high-performance non-ionic surfactant and emulsifier derived from a mixture of C14-15 fatty alcohols. It serves as a structural backbone in skincare chemistry, facilitating the seamless integration of oil and water phases to create stable, elegant textures.

Summary

emulsifying surfactant cleansing

Science

Mechanism of Action

This ingredient operates by reducing interfacial tension between aqueous and lipid components. Its molecular architecture—featuring a lipophilic C14-15 carbon chain and a hydrophilic polyoxyethylene chain—allows it to orient itself at the oil-water interface, stabilizing emulsions (HLB ~9.4) and assisting in the removal of debris during cleansing.

Research

Clinical Evidence

High confidence
Effective range 1–10%
Optimal

5%

Key findings

  1. 01 Clinical patch testing on related C14-15 Alkyl PEG ethers indicates that while slight irritancy may occur at high concentrations (10% aqueous), the ingredient is safe when formulated for biocompatibility.
  2. 02 Safety assessments of undiluted related compounds (C14-15 Pareth-7) demonstrated only negligible to slight irritation in occlusive 3-patch application tests.

Transparency

Dusting Analysis

Not commonly dusted
Min. effective
0.5%
Red flag below
0.1%

As a functional emulsifier and surfactant, C14-15 Pareth-4 is rarely used for 'label claim' marketing. Its inclusion is typically driven by the structural requirements of the formulation rather than marketing appeal.

The Formula

Formulation

Solubility
Both
Optimal pH 3 – 11
0 7 14

Stability

Exhibits exceptional stability across a broad pH range due to its non-ionic nature, which prevents the hydrolysis common in ester-based emulsifiers.

Synergies

  • Co-emulsifiers
  • Hydrophilic polymers
  • Lipophilic thickeners

Conflicts

  • Strong oxidizing agents
  • Strong acids at high temperatures

Safety

Safety Profile

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

While safe for general use, formulations containing this ingredient should not be applied to severely damaged or broken skin to avoid potential systemic absorption of PEG components.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A reliable and pH-stable emulsifier that ensures formulation integrity and smooth application across all skin types.

Related

Similar Ingredients

Finding similar ingredients…

References

Sources