Science
Mechanism of Action
Octoxynol-7 operates by decreasing the surface tension at the interface of different substances. This property allows it to stabilize emulsions, disperse insoluble particles, and aid in the removal of impurities, thereby acting as an efficient emulsifier, cleansing agent, and solubilizer within cosmetic systems.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Optimal stability and performance for Octoxynol-7 are observed within an alkaline pH range of 7.0 to 9.0. Formulators must prioritize minimizing impurities such as 1,4-dioxane, ethylene oxide, and unreacted C9 phenols. Due to its shorter chain length, Octoxynol-7 may exhibit higher skin absorption compared to longer-chain octoxynols, necessitating careful formulation to ensure non-irritancy.
Conflicts
- Not recommended for use in the eye area due to documented ocular irritancy concerns.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel deems Octoxynol-7 safe for use in rinse-off products. In leave-on applications, it is considered safe at concentrations up to 5%, provided the final product is formulated to be non-irritating. Concerns exist regarding trace levels of 1,4-dioxane, ethylene oxide, and unreacted C9 phenols, which should be strictly limited. Octoxynol-7 has not been reviewed by the SCCS, but it is approved by the FDA for specific indirect food contact applications.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Octoxynol-7 is a valuable surfactant for maintaining product stability and texture, provided its use adheres strictly to safety concentrations and impurity guidelines, particularly for leave-on formulations and avoiding the eye area.
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References
Sources