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Moumoujus

CETEARYL ETHYLHEXYLDIMONIUM METHOSULFATE.

Valuable CAS 952500-60-6 / HAIR CONDITIONING

A sophisticated asymmetric quaternary ammonium salt engineered to provide superior lubricity and a velvety finish to keratinous surfaces. Unlike traditional conditioning agents, its unique molecular structure allows it to form a weightless, breathable film that significantly reduces surface friction and static.

Summary

Skin conditioning Antistatic agent Hair conditioning Texture enhancer

Science

Mechanism of Action

This ingredient operates via electrostatic attraction; as a cationic (positively charged) surfactant, it binds specifically to the naturally negative charge of the skin's surface. This substantive adsorption creates a uniform, lubricating shield that neutralizes static and smooths the micro-relief of the epidermis.

Research

Clinical Evidence

High confidence
Effective range 0.1–15%
Optimal

5%

Key findings

  1. 01 Comparative analysis indicates that asymmetric dialkyl structures offer enhanced softness and a 'slippery' sensory profile compared to standard monoalkyl quaternaries.
  2. 02 In concentrations between 0.5% and 5%, it successfully facilitates a stable gel matrix, leading to improved moisture retention and tactile smoothness on dry substrates.

Transparency

Dusting Analysis

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

Because this ingredient is often part of a commercial blend (like Varisoft ASQ), it is rarely 'dusted' in the traditional sense, but levels below 0.5% may fail to provide the structural gel matrix required for significant skin-conditioning benefits.

The Formula

Formulation

Solubility
Both
Optimal pH 3 – 9
0 7 14

Stability

Exhibits peak stability in acidic conditions (pH 3.0–5.0). It is highly compatible with nonionic and other cationic systems.

Synergies

  • Nonionic emulsifiers
  • Cationic surfactants
  • Fatty alcohols

Conflicts

  • Anionic surfactants (SLS/SLES)
  • Anionic thickeners (Carbomer, Xanthan Gum)
  • Strongly alkaline environments

Safety

Safety Profile

CIR Status
Not formally reviewed (Alkyl Quaternaries class generally safe)
Max tested
15%
Pregnancy
Safe
Sensitization risk Low

While a standalone CIR assessment is pending, the Alkyl Quaternaries class is established as safe up to 15% when formulated to be non-irritating.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

An exceptional texture-modifying agent that provides a high-performance, silky skin feel with excellent substantivity for dry and sensitive types.

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