Science
Mechanism of Action
This disiloxane derivative functions by forming a transient, silky film on the skin's surface. As a volatile silicone fluid, it effectively improves the tactile aesthetics and application ease of cosmetic products by increasing their spreadability without leaving a heavy residue, as it evaporates shortly after application. It may also possess antifoaming properties within formulations.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
No specific optimal pH range for stability has been identified for this ingredient, with some information suggesting pH may not be applicable. Similar compounds frequently lack detailed chemical stability and reactivity data.
Conflicts
- Oxidizing materials
Safety
Safety Profile
TETRAPHENYL DIMETHYL DISILOXANE (CAS: 807-28-3) is registered in the FDA Global Substance Registration System (UNII: 54A20TN089). While not individually approved, it may be used as a component in New Zealand products under group standards. Aggregated GHS data from ECHA indicates that 63.1% of reports classify it with hazard statements such as 'Causes skin irritation' (H315) and 'Causes serious eye irritation' (H319), along with 'May cause respiratory irritation' (H335). However, 33.8% of reports state it does not meet GHS hazard criteria, and one Safety Data Sheet for a mixture containing it claims it is 'Non irritating' and 'Non sensitizing' to the skin. The Cosmetic Ingredient Review (CIR) Expert Panel has not specifically assessed this ingredient but has deemed broader categories of silicones (dimethicone, methicone) safe in cosmetics when formulated to be non-irritating.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This silicone fluid offers skin conditioning and spreadability benefits, but its specific safety profile, including irritancy and comedogenicity, requires further dedicated research and review.
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