Science
Mechanism of Action
As a nonionic surfactant, OLETH-25 functions by lowering the surface tension between different phases, allowing water to effectively mix with oils and dirt for rinse-off cleansing. It acts as an emulsifier to stabilize formulations containing both oil and water components, preventing separation. Additionally, OLETH-25 serves as a solubilizing agent, enabling ingredients typically insoluble in a liquid medium to dissolve. Certain research also indicates that Oleth ingredients may enhance the dermal penetration of other active compounds.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
OLETH-25 is a nonionic surfactant, known for its stability across a broad pH spectrum, including acidic, neutral, and diluted alkaline environments. Its high degree of ethoxylation (25 ethylene oxide units) contributes to its excellent solubility in both aqueous and oil-based systems.
Conflicts
- strong oxidizing agents
- heat
- flames
- sparks
- potential for 1,4-dioxane by-product (requires purification control)
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed Oleth ingredients, including OLETH-25, safe for use under current practices. However, it is advised not to use these ingredients on damaged skin. Formulations containing OLETH-25 should be designed to be non-irritating, as mild to moderate eye and skin irritation has been noted. Due to its potential to enhance the penetration of other ingredients, careful formulation is paramount. Manufacturers must also control for the potential presence of 1,4-dioxane as a by-product through purification.
Your Skin
Skin Compatibility
Our Assessment
Verdict
OLETH-25 is a valuable formulation aid, providing essential surfactant, emulsifying, and solubilizing properties with a generally safe profile when properly formulated and purified.
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References
Sources