Science
Mechanism of Action
This ingredient functions by reducing the interfacial tension between incompatible substances. As a surfactant, it aids in effective cleansing of skin and hair. As an emulsifier, its amphiphilic structure, characterized by a hydrophilic polyoxyethylene chain of 16 units and a lipophilic isostearyl alcohol moiety, allows for the stable integration of oil and water phases in emulsions.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The amphiphilic nature of Isosteareth-16, specifically its 16-unit polyoxyethylene chain, contributes to its solubility in both aqueous and oil phases. This characteristic enables it to act as an effective oil-in-water emulsifier or solubilizer, maintaining product stability across the typical pH ranges encountered in cosmetic formulations.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that alkyl PEG ethers, including Isosteareth-16, are safe for use in current cosmetic practices and concentrations, provided they are formulated to be non-irritating. No specific SCCS opinion or FDA GRAS status for cosmetic use has been identified. It is also listed as an EPA Pesticide Conventional Chemical.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Isosteareth-16 is a valuable formulation ingredient, acting as an effective surfactant and emulsifier to enhance product stability and contribute to cleansing properties.
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