Science
Mechanism of Action
This ingredient works by significantly lowering the surface tension of a cosmetic product, ensuring more uniform distribution upon application. As an emulsifier, it plays a critical role in creating and maintaining stable blends of oil and water. On the skin, it provides a lubricating effect, enhancing smoothness, and can facilitate the deeper delivery of other active ingredients by modifying the skin's surface tension.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 The Cosmetic Ingredient Review (CIR) Expert Panel determined PEG-8 Propylene Glycol Cocoate, along with related derivatives, to be safe for use in cosmetics at concentrations up to 10%. A maximum reported use concentration in certain hair grooming aids and tonics was 1.2%.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Polyethylene glycols and their derivatives, including this ingredient, exhibit excellent stability. They are considered non-volatile compounds that resist hydrolysis and deterioration during storage, provided they are kept in the absence of oxygen. They offer a broad range of viscosity and solubility properties for flexible formulation.
Safety
Safety Profile
The CIR Expert Panel concluded that PEG-8 Propylene Glycol Cocoate is safe for use in cosmetic formulations, even removing an earlier caveat regarding its use on damaged skin. While 1,4-dioxane, a potential byproduct of the ethoxylation process, may be present in trace amounts, these levels are controlled through purification and are assured by the FDA to be non-hazardous in cosmetics. No specific SCCS opinion was identified.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PEG-8 Propylene Glycol Cocoate is a valuable formulating agent due to its robust emulsifying and conditioning properties, widely deemed safe for cosmetic applications up to 10% concentration by the CIR.
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