Science
Mechanism of Action
This non-ionic ingredient functions by significantly lowering interfacial tension, which enables the stable mixing of oil and water phases to form robust emulsions. It excels as a solubilizer, effectively dispersing oil-soluble compounds like active ingredients and fragrances within water-based systems. As a surfactant, it aids in cleansing by reducing surface tension. The hydrogenated castor oil component further contributes direct skincare benefits, including moisturizing, emollient, and humectant properties, which can improve skin barrier function and potentially offer anti-inflammatory and itch-relieving effects.
Research
Clinical Evidence
High confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Optimal stability and emulsification efficiency are maintained within a pH range of 4 to 8. Outside this range, hydrolysis may occur, potentially compromising its functional performance. Its non-ionic nature ensures activity across both acidic and alkaline conditions, and it exhibits good resistance to oxidation and chemical degradation, contributing to overall product stability.
Safety
Safety Profile
The CIR Expert Panel concluded that PEG-80 Hydrogenated Castor Oil is safe for use in cosmetics at concentrations up to 100%, provided the final product is formulated to be non-irritating. Trace amounts of 1,4-dioxane, a by-product of ethoxylation, may be present but can be controlled through purification processes. Related PEG-30 and PEG-40 Hydrogenated Castor Oil are approved by the FDA as direct and indirect food additives, and castor oil itself is a permitted flavoring agent.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-80 Hydrogenated Castor Oil is a valuable, versatile ingredient for stable formulations, offering both essential emulsification and solubilization alongside moisturizing benefits for all skin types when correctly formulated within a non-irritating context.
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