Science
Mechanism of Action
This silicone derivative operates primarily as a film-forming agent, creating a continuous, vapor-permeable barrier on the skin's surface. This occlusive film effectively minimizes transepidermal water loss, thereby maintaining optimal skin hydration. Beyond its barrier function, it imparts emollient properties, which help to soften and smooth the skin, enhancing overall texture. Its low surface tension facilitates excellent spreadability across the skin, while its ability to absorb excess oil contributes to a fresh, comfortable finish. In color cosmetics, it additionally aids in pigment dispersion and enhances product longevity and gloss.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This silicone is generally insoluble in water but exhibits high compatibility with most cosmetic ingredients and solubility in many common solvents.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded that dimethicone and related polymers, including GLYCERYL UNDECYL DIMETHICONE, are safe for use in cosmetics when formulated to be non-irritating, with reported use concentrations up to 85%. The FDA recognizes dimethicone for its skin protectant physiological effects. However, the CIR Panel noted insufficient data to determine safety for incidental inhalation via airbrush devices. EWG Skin Deep identifies low concerns for cancer, allergies, immunotoxicity, and developmental toxicity, though it highlights potential for increased concern if toxic impurities are present.
Your Skin
Skin Compatibility
Our Assessment
Verdict
GLYCERYL UNDECYL DIMETHICONE is a valuable multi-functional silicone polymer, enhancing skin hydration and texture through its film-forming and emollient properties, with a strong safety profile for broad cosmetic application.
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