Science
Mechanism of Action
This ingredient functions by significantly lowering the surface tension within cosmetic formulations, which facilitates the stable blending of immiscible phases such as oil and water. As an effective solubilizer, it enables the uniform dispersion of lipophilic substances, including fragrances and active ingredients, within water-based systems. Additionally, it contributes to skin hydration as a humectant by forming a protective film that reduces moisture loss, enhances overall formulation consistency, and supports efficient cleansing and foam generation in topical applications.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Polyethylene glycols and their derivatives, including PEG-65 Hydrogenated Castor Oil, demonstrate robust stability across a wide range of pH conditions, from acidic to alkaline. For optimal integration, it can be incorporated into the oil phase, either cold at a suggested 3:1 ratio (referencing related PEG-40 Hydrogenated Castor Oil to oil), or blended directly into a heated oil phase, prior to combining with the aqueous phase.
Safety
Safety Profile
The CIR Expert Panel has determined that PEGylated Oils, including PEG-65 Hydrogenated Castor Oil, are safe for use in cosmetic applications when formulated to be non-irritating, even at concentrations up to 100%. Studies on closely related PEGs like PEG-30, PEG-40, and PEG-60 Hydrogenated Castor Oil confirm a generally non-irritating and non-sensitizing profile on human skin. Given the potential for individual sensitivities, particularly for those with reactive skin, patch testing is recommended.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-65 Hydrogenated Castor Oil is a highly valuable multi-functional ingredient, offering excellent emulsifying, solubilizing, and humectant properties with a strong safety profile for diverse skincare and cosmetic applications.
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