Science
Mechanism of Action
This ingredient operates by significantly reducing surface tension and forming a protective film at interfaces, facilitating the integration of disparate components within a formula. It effectively solubilizes various substances and allows for the creation of stable emulsions, such as oil-in-water mixtures. Its solvent properties further enhance its utility in diverse cosmetic bases.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
No specific data regarding dusting behavior or associated thresholds were identified in the research.
The Formula
Formulation
Stability
Polypropylene glycols (PPGs) generally exhibit good skin tolerance and a broad range of solubility properties. While some related ethoxylated alcohols are known to maintain stability across low and high pH formulations, specific optimal pH stability for PPG-2-ISODECETH-9 has not been documented.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed PPG-2-ISODECETH-9, as part of a broader class of 131 alkyl PEG/PPG ethers, safe for cosmetic use under current practices, provided the final formulation is non-irritating. While no specific maximum concentration is established for PPG-2-ISODECETH-9, a related compound, PPG-2-Isodeceth-12, has reported use concentrations up to 10% in rinse-off products and 5% in leave-on formulations. Regulatory status from SCCS or specific FDA cosmetic guidelines are not available, although a general GRAS status for household cleaners was noted, which is distinct from skincare applications.
Your Skin
Skin Compatibility
Our Assessment
Verdict
PPG-2-ISODECETH-9 is a valuable formulating agent, providing essential emulsifying and solubilizing capabilities for creating stable and aesthetically pleasing skincare products, contingent on careful formulation to ensure non-irritancy.
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References
Sources