Science
Mechanism of Action
On the skin, PEG-14 Dimethicone functions as an emollient and conditioning agent, improving the sensory experience and application of products. It forms a protective, occlusive barrier on the skin's surface, which helps to minimize transepidermal water loss and thereby offers indirect moisturization. Additionally, this ingredient acts as a silicone surfactant and emulsifier, crucial for stabilizing water-in-silicone emulsions and reducing surface tension. It can also temporarily refine skin texture by lightly filling in fine lines and pores.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
PEG-14 Dimethicone is chemically stable under standard ambient conditions (room temperature) and is highly compatible with other cosmetic ingredients. It is cold processable, simplifying formulation procedures. While specific optimal pH data for PEG-14 Dimethicone is not provided, a related ingredient, PEG-8 dimethicone, has demonstrated stable formulation performance within a functional pH range of 5.5 to 8.5.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that PEG-14 Dimethicone, alongside related substituted-methicone polymers, is safe for use in cosmetics under current practices and concentrations, provided formulations are non-irritating. A specific exception was noted for products that may be incidentally inhaled when applied via airbrush devices, where data were considered insufficient for safety determination. The FDA generally designates PEGs as safe for specific, limited use in food, and Dimethicone itself is an FDA-approved skin protectant.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-14 Dimethicone is a valuable multi-functional ingredient that enhances product aesthetics, provides conditioning, and offers mild moisturizing benefits across a wide range of skin types with a low risk of irritation or comedogenicity.
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