Science
Mechanism of Action
This ingredient functions by leveraging its amphiphilic structure, possessing both hydrophilic and lipophilic properties, to stabilize emulsions by reducing the interfacial tension between immiscible liquids. As a surfactant, it lowers surface tension on the skin, facilitating the effective removal of impurities. Additionally, UNDECETH-8 acts as a skin conditioning agent and emollient, forming a protective barrier that helps to prevent transepidermal water loss, thereby maintaining skin moisture and promoting a soft, smooth texture. It can also provide a calming sensation, particularly beneficial for dry or sensitive skin types.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
UNDECETH-8 presents as a cloudy liquid at ambient temperature, solidifying into a wax below 20°C. It achieves a homogeneous, transparent state at approximately 35°C. For optimal storage and stability, maintain temperatures below 40°C in stainless steel tanks, avoiding heating above 60°C. Storing under a nitrogen blanket is recommended to mitigate yellowing. Its handling at lower temperatures (5-10°C) can be enhanced by blending with 15% water.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed UNDECETH-8 and related alkyl PEG ethers safe for cosmetic use, provided they are formulated to be non-irritating. A key consideration is the ethoxylation process, which can potentially introduce trace amounts of ethylene oxide and 1,4-dioxane, both classified as carcinogens. The overall safety profile is highly dependent on the purity of the manufactured compound, though specific purity data is not typically disclosed on product labels. Adverse reactions are infrequent, and in its raw, concentrated form, it is classified as harmful if ingested and causes serious eye damage, yet it is not recognized as a skin irritant or sensitizer.
Your Skin
Skin Compatibility
Our Assessment
Verdict
UNDECETH-8 is a valuable multifunctional ingredient for formulation, offering effective emulsification, gentle cleansing, and skin conditioning benefits across various skin types, provided stringent purity controls are in place to mitigate potential byproduct concerns from its synthesis.
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References
Sources