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Moumoujus

BEHENDIMONIUM ETHYL STEARYL PHOSPHATE.

Valuable CAS - / HAIR CONDITIONING, SKIN CONDITIONING - EMOLLIENT

A sophisticated dialkyl Gemini compound designed to replicate the architecture of natural skin lipids. It acts as a biocompatible structural agent that shields the skin's surface while facilitating the delivery of active molecules.

Summary

Skin Conditioning Barrier Repair Emollient Penetration Enhancer Emulsion Stabilizer

Science

Mechanism of Action

This ingredient utilizes a phosphorylcholine-mimetic head and dual hydrophobic chains to self-organize into multi-lamellar vesicles. Upon application, it creates a 'pseudo-ceramide veil' that reinforces the skin's barrier, significantly preventing moisture loss by mimicking the membrane structure of human cells.

Research

Clinical Evidence

High confidence
Effective range 0.5–1%
Optimal

1%

Key findings

  1. 01 Clinical evaluations at 1.0% concentration demonstrate the formation of a biomimetic film that measurably reduces trans-epidermal water loss (TEWL) while enhancing skin elasticity and texture smoothness.
  2. 02 Research indicates that concentrations between 0.5% and 1.0% effectively improve the transdermal penetration of accompanying actives and optimize the application profile of dense UV filters.

Transparency

Dusting Analysis

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

Because it functions as both a structural lipid-mimic and a penetration enhancer, usage below 0.5% may fail to provide the characteristic 'veil' effect or significant barrier repair benefits.

The Formula

Formulation

Solubility
Both
Optimal pH 3.5 – 7.5
0 7 14

Stability

Exhibits robust stability across various pH levels and is frequently utilized to stabilize O/W emulsions as a silicone-free alternative.

Synergies

  • UV Filters
  • Ceramides
  • Active ingredients requiring enhanced delivery

Conflicts

  • High concentrations of anionic polymers like Carbomer (may cause flocculation)

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
1%
Pregnancy
Safe
Sensitization risk Low

Recognized for high biocompatibility due to its biomimetic structure. It carries the FDA UNII identifier ZO7BWA10W8.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

An exceptional biomimetic ingredient that offers dual benefits of intensive barrier reinforcement and improved sensory performance in precision skincare.

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