Science
Mechanism of Action
This ingredient functions as a hydrophobic silica derivative, primarily by physically absorbing excess skin oils and sebum. This action leads to a reduction in skin shine and assists in preventing clogged pores. Beyond its anti-sebum capabilities, it acts as a thickening agent in oil phases, imparting a luxurious, lightweight texture, and may provide ancillary skin conditioning and protective benefits.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Specific optimal pH for stability is not detailed in current data. It is noted that highly polar oil blends or high alcohol content might inhibit its oil-gelling capabilities. Furthermore, temperatures exceeding 80°C should be avoided during formulation to maintain integrity.
Conflicts
- Water (insoluble)
- Highly polar oil blends (can inhibit gel formation)
- High alcohol content (can inhibit gel formation)
- Temperatures above 80°C
Safety
Safety Profile
The CIR Expert Panel assessed related 'silica silylate' as safe for cosmetic use in concentrations between 0.2% and 25%, provided it is formulated to avoid respiratory irritation or sensitization. However, a specific CIR assessment for SILICA MERCAPTOPROPYL SILYLATE is not available. The SCCS expressed 'inadequate and insufficient evidence' regarding the safety of nano forms of various silicas, including silylated silicas, due to potential skin penetration concerns.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This ingredient is valuable for its efficacy in oil control, mattifying skin, and enhancing product texture, making it suitable for targeted formulations despite some safety and compatibility data being categorized as 'unknown' due to lack of specific studies.
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References
Sources