Science
Mechanism of Action
As a humectant, PEG-220 forms hydrogen bonds with water molecules, effectively binding moisture to the skin to provide gradual, long-term hydration. It also contributes to barrier function by forming a superficial film that minimizes transepidermal water loss. Within cosmetic formulations, PEG-220 exhibits multifaceted roles, functioning as a solvent for other ingredients, a binder, a carrier for active compounds, a dispersing agent, a viscosifier to adjust product consistency, an emulsifier, a cleansing agent, a thickener, and an antistatic agent.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
PEG-220, also identified as PEG 10000, maintains stability for a minimum of two years. When stored in original sealed containers in a cool, dry place shielded from direct sunlight, it is stable for 6 months. Optimal long-term storage temperatures range from 10°C to 25°C, with a maximum of 30°C. Brief periods at higher temperatures are permissible, provided they remain below its solidification point of 55-62°C.
Conflicts
- pure hydrocarbons
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has determined PEG-220, alongside other PEGs across a broad molecular weight spectrum, to be safe for use in cosmetic products under current conditions. High molecular weight PEGs like PEG-220 (average molecular weight ~10,000) are not absorbed through intact skin. It is recognized as minimally irritating and non-sensitizing to human skin. The prior caution regarding its use on damaged skin was rescinded in 2010. Manufacturers are advised to rigorously control impurities such as ethylene oxide and 1,4-dioxane. The FDA generally regards PEGs as safe (GRAS) for certain applications, including as food additives, and lists them in its Database for Inactive Ingredients.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-220 is a valuable, multi-functional ingredient that significantly enhances skin hydration and optimizes formulation stability and texture across a broad range of cosmetic products.
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