Science
Mechanism of Action
As a surfactant, Octoxynol-70 reduces the surface tension between different phases, such as oil and water, enabling the formation and stabilization of emulsions. In cleansing applications, it helps water to mix with and lift away oils and dirt from skin and hair. Its longer ethoxylate chain also grants it superior solubilizing capabilities, allowing it to integrate ingredients that are otherwise difficult to dissolve into a solvent system.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
While a specific optimal pH range for Octoxynol-70 has not been identified, other long-chain octoxynols like Octoxynol-10 are noted for stability across a wide pH range. Related compound Octoxynol-1 shows stability between pH 5.0 and 8.0.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded that long-chain octoxynols (those with 9 or more ethoxylate units, which includes Octoxynol-70) are safe for use in both rinse-off and leave-on cosmetic products, provided they are formulated to be non-irritating. This ingredient also holds FDA approval for various indirect food contact applications, such as a surfactant in pesticide dilutions. Formulators should implement purification steps to control residual levels of 1,4-dioxane, a potential by-product of the ethoxylation process. No specific SCCS opinion for Octoxynol-70 was found in the available research.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Octoxynol-70 is a valuable functional ingredient, essential for enhancing formulation stability and ingredient solubility, and is deemed safe by the CIR Expert Panel when properly formulated to be non-irritating.
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References
Sources