Science
Mechanism of Action
As a surfactant, STEARETH-5 STEARATE's primary mechanism involves reducing the interfacial tension between immiscible phases, such as oil and water. This allows it to form and stabilize oil-in-water emulsions, ensuring a homogenous product consistency. On the skin, it acts as a conditioning agent by helping to maintain the skin's surface in optimal condition. Its surfactant properties also enable it to function as a cleansing agent, assisting in the efficient removal of dirt and impurities by lowering the surface tension of the stratum corneum.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This emulsifier facilitates the formation of stable emulsions. As a PEG derivative, its physical consistency, and subsequently its solubility and hygroscopicity, are influenced by its degree of polymerization, becoming more solid with higher molar mass. Formulators can achieve creamy product consistencies by combining liquid and solid components.
Safety
Safety Profile
The CIR Expert Panel deemed Steareth ingredients, including Steareth-5 Stearate, safe for cosmetic use when formulated to ensure they are non-irritating. A potential trace impurity, 1,4-dioxane, a by-product of the ethoxylation process, is recognized and can be effectively controlled and minimized through appropriate purification steps during manufacturing.
Your Skin
Skin Compatibility
Our Assessment
Verdict
STEARETH-5 STEARATE is a valuable surfactant, essential for stabilizing cosmetic emulsions and offering skin conditioning and cleansing benefits, provided it is formulated to be non-irritating.
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References
Sources