Science
Mechanism of Action
On the skin, Laureth-4 Phosphate operates by significantly reducing surface tension, which facilitates the efficient removal of dirt, excess oil, and impurities during cleansing. As an emulsifier, it ensures the stable integration of disparate oil and water components, contributing to consistent product textures and the uniform distribution of active ingredients within topical applications. It also provides desirable foaming properties.
Research
Clinical Evidence
Medium confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient demonstrates robust stability across a broad pH range and maintains integrity in alkaline environments. It is cold-processable and serves as a key component for forming stable oil-in-water emulsions, with optimal formulation stability typically observed between pH 5.5 and 7.0.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed Laureth-4 Phosphate, among related alkyl phosphates, safe for use under current practices and concentrations, provided it is formulated to be non-irritating. While 1,4-dioxane is a known byproduct of the ethoxylation process for related compounds, purification steps are routinely implemented to minimize potential traces in cosmetic formulations.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Laureth-4 Phosphate is a valuable and multifunctional ingredient, essential for achieving product stability and optimal texture, while also serving effectively as a cleansing and solubilizing agent across a diverse array of skincare and haircare formulations.
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References
Sources