Science
Mechanism of Action
As a sophisticated crosslinked silicone polymer, this ingredient improves formulation aesthetics by imparting a smooth texture, enhanced spreadability, and desirable slip. It creates a vapor-permeable barrier on the skin's surface, which demonstrably aids in moisture retention and skin conditioning. The amodimethicone components, with their positively charged amino groups, contribute to substantive adherence to the negatively charged skin, reinforcing its excellent film-forming properties. Its inherent water insolubility, low surface tension, and superior spreading qualities ensure a uniform and protective application.
Research
Clinical Evidence
Low confidence0.7%
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient is typically a chemically stable product, often produced via hydrosilation reactions and supplied as a swollen gel in various oils (e.g., silicone oils). Its chemical and rheological characteristics can be modulated by incorporating hydrophilic or hydrophobic additives.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that dimethicone crosspolymer ingredients, including this specific polymer, are safe for use in cosmetics when formulated to be non-irritating and within established concentration limits, such as the reported 0.7%. However, data are currently insufficient to ascertain its safety for incidental inhalation, particularly when applied via airbrush devices. It is important to note that this ingredient is classified as a Per- and Polyfluoroalkyl Substance (PFAS). The FDA indicates that definitive conclusions regarding the potential health risks of PFAS in cosmetics are limited by insufficient published research, necessitating further study, despite acknowledging CIR's comprehensive safety reviews of several cosmetic PFAS.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While this silicone crosspolymer offers significant textural enhancement and skin-conditioning benefits with low irritancy across all skin types, its classification as a PFAS and an 'Incidecoder worst' rating necessitate careful consideration despite CIR's conditional safety assessment.
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