Science
Mechanism of Action
This ingredient operates by leveraging its low surface tension to create a breathable, protective film upon the skin's surface. As a phenyl functional silicone, it conditions and softens the skin, imparting a smoother texture. Furthermore, its high refractive index contributes to enhanced skin luminosity without leaving a greasy residue.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This substance demonstrates inherent stability under normal conditions, but elevated temperatures, open flames, and sparks should be avoided as they may lead to the release of irritating fumes and organic acid vapors.
Conflicts
- Heat
- Open flame
- Sparks
Safety
Safety Profile
The CIR Expert Panel deemed Trimethyl Pentaphenyl Trisiloxane, along with similar phenyl-substituted methicones, safe for cosmetic use under current practices. However, this safety assessment explicitly excludes applications where the ingredient could be incidentally inhaled. Notably, aggregated GHS data indicates that 55.9% of reports classify this ingredient as causing serious eye irritation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Trimethyl Pentaphenyl Trisiloxane is a valuable silicone for enhancing skin texture, luminosity, and feel in a wide range of formulations, though its use requires careful consideration regarding inhalation risk and potential eye irritation.
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