Science
Mechanism of Action
As a silicone, Stearoxytrimethylsilane acts by creating a lightweight, breathable film on the skin's surface. This film not only imparts a desirable silky texture but crucially aids in establishing a moisture barrier, thereby preventing trans-epidermal water loss and promoting skin suppleness.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Cosmetic Ingredient Review (CIR) Safety Assessment of Alkoxyl Alkyl Silanes
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Identified as fat-soluble. While specific optimal pH ranges for the intrinsic stability of Stearoxytrimethylsilane itself are not detailed, cosmetic products typically target a pH between 4 and 6 for overall formulation integrity and skin compatibility.
Safety
Safety Profile
The CIR Expert Panel concluded that Stearoxytrimethylsilane is safe for cosmetic use at concentrations of 0.77% or lower. It is not classified under GHS hazard criteria by 100% of reports. No specific SCCS opinion has been found, and while the FDA does not pre-approve cosmetic ingredients, Stearoxytrimethylsilane is listed in its Global Substance Registration System.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Stearoxytrimethylsilane is a valuable silicone derivative, offering proven emollient and skin-conditioning benefits with a low risk of irritation across various skin types, making it suitable for enhancing skin texture and moisture retention.
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