Science
Mechanism of Action
On the skin, this ingredient forms a breathable, protective film that effectively retains moisture, promoting prolonged hydration and a softer, more supple complexion. Its unique structure facilitates seamless product spreadability and acts as a shield against environmental stressors. Additionally, it imparts a subtle optical blurring effect, visibly diminishing the appearance of fine lines and pores for a radiant, smooth finish. Its large molecular size prevents skin absorption, thereby also hindering the entry of external pollutants. In formulations, it functions as an emulsifier and stabilizer, preventing phase separation in various emulsion types, while simultaneously modulating viscosity and contributing a desirable silky, powdery feel.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The PEG-10 component of this ingredient demonstrates stability across neutral, mildly acidic, and alkaline aqueous solutions, though strong acids or alkalis may reduce its integrity. Its dual hydrophilic (PEG) and lipophilic (silicone) nature allows it to effectively stabilize a range of formulations, including water-in-oil, oil-in-water, and non-aqueous emulsions, while also being water-dispersible. Optimized performance is achieved within well-balanced product formulations.
Conflicts
- strong acid
- strong alkali
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has assessed dimethicone crosspolymer ingredients, including 'PEG-10 dimethicone/vinyl dimethicone crosspolymer' and 'Bis-vinyldimethicone/PEG-10 dimethicone crosspolymer', affirming their safety under current use practices. While specific concentrations for this exact ingredient are not documented, a related 'PEG-10 dimethicone crosspolymer' has been utilized in leave-on products at 0.6% to 2% and in rinse-off products at 0.3%. Regulatory bodies, including the FDA and European organizations, continuously evaluate and set stringent standards for such ingredients. However, some individuals, particularly those with sensitive or allergy-prone skin, may experience irritation, necessitating a preliminary sensitivity patch test. Of significant concern, the European Union Ecolabel program has identified this substance as environmentally persistent and non-anaerobically degradable. Furthermore, it is classified as 'Suspected of damaging fertility' according to EU GHS Hazard Labeling Codes, prompting the EWG to restrict its use in EWG VERIFIED products without comprehensive substantiation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While offering notable cosmetic and textural benefits for a variety of skin types, its classification as 'Suspected of damaging fertility' by EU GHS and environmental persistence raise significant concerns for a precision skincare brand focused on safety and sustainability.
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