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Moumoujus

STYRENE/VINYL BENZYL LAURDIMONIUM CHLORIDE COPOLYMER.

Valuable CAS 56343-17-0 / SOLVENT, SURFACTANT - CLEANSING

This copolymer functions primarily as a film-former, imparting structural integrity and texture to formulations. As a quaternary ammonium salt, it also exhibits antistatic properties and has demonstrated potential antibacterial activity against common bacteria.

Summary

Film-former Opacifying agent Viscosity increasing agent Antistatic Hair conditioning Antibacterial (potential)

Science

Mechanism of Action

As a quaternary ammonium salt (QAS), this copolymer interacts electrostatically with the negatively charged surfaces of microbial cells. This interaction is believed to disrupt the cytoplasmic membrane, leading to compromised cell integrity and ultimately cell death. In cosmetic applications, its polymeric structure allows it to form thin films on surfaces, contribute to product opacity, and increase viscosity.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Quaternized poly(styrene-co-vinylbenzyl chloride) polymers demonstrate high thermal stability, capable of withstanding temperatures up to 165 °C. Electrospun membranes of related copolymers maintain stability up to approximately 150 °C.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
36.5%
Sensitization risk Low

The CIR Expert Panel considers styrene and vinyl-type styrene copolymers safe within current cosmetic use and concentrations. Due to its large molecular size, percutaneous absorption is not anticipated. Related copolymers have shown minimal irritation in ocular studies. The maximum reported use of 36.5% refers to polystyrene, a related copolymer.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

STYRENE/VINYL BENZYL LAURDIMONIUM CHLORIDE COPOLYMER is a valuable ingredient, primarily serving as a safe film-former and conditioning agent with potential antibacterial properties, exhibiting low irritancy and comedogenicity.

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