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Moumoujus

METHOXY PEG-10 PROPYLTRIMETHOXYSILANE.

Insufficient Data CAS - / BINDING, SURFACTANT - CLEANSING

A multifunctional silane derivative, METHOXY PEG-10 PROPYLTRIMETHOXYSILANE serves as a solubilizer and humectant, facilitating the even dispersion of oil-soluble ingredients in aqueous systems while contributing to skin hydration. It also acts as a coupling agent and surface modifier, enhancing formulation stability and sensory characteristics, though its hydrolysis properties necessitate careful formulation.

Summary

humectant surfactant/cleansing binding agent surface modifier

Science

Mechanism of Action

This ingredient operates via multiple mechanisms. Primarily, it functions as a potent solubilizer, facilitating the homogenous dispersion of hydrophobic components such as fragrance and essential oils within aqueous formulations. As a humectant, it attracts and retains water, contributing to enhanced skin hydration. Furthermore, its unique molecular structure allows it to act as a coupling agent, stabilizing complex water-alcohol-oil emulsions, and as a surface modifier. The trimethoxysilane segment forms stable siloxane bonds with various surfaces, promoting ingredient adherence and product longevity, while the polyethylene glycol chain imparts crucial hydrophilicity, ensuring seamless integration into water-based systems. This contributes to improved product clarity and a refined sensory experience, including reduced tackiness.

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

This ingredient exhibits instability in the presence of water and moisture, undergoing hydrolysis to liberate methanol. Both acidic and alkaline conditions catalyze this hydrolysis, with acid-catalyzed degradation being notably more rapid. Optimal stability is achieved in neutral, low ionic environments; thus, avoidance of strong acids and alkalis is critical during formulation.

Conflicts

  • Water (initiates hydrolysis and methanol release)
  • Strong Acids (significantly accelerates hydrolysis)
  • Strong Alkalis (promotes hydrolysis)

Safety

Safety Profile

CIR Status
Unknown
Sensitization risk Unknown

While the Cosmetic Ingredient Review (CIR) Expert Panel has evaluated many related PEG and siloxane compounds, concluding them as generally safe, a specific review for METHOXY PEG-10 PROPYLTRIMETHOXYSILANE is not documented. A primary safety concern arises from its hydrolysis in the presence of water or moisture, which liberates methanol. Methanol is known to cause severe eye irritation and, if ingested, can lead to significant toxicity. Therefore, meticulous handling and formulation are advised to mitigate the risk associated with methanol release.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Insufficient Data

Further research is required to ascertain the full safety profile and optimal application concentrations of this multifunctional ingredient, particularly concerning methanol liberation.

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