Science
Mechanism of Action
Operating primarily as a mild anionic surfactant, Disodium Undecylenamido PEG-2 Sulfosuccinate efficiently reduces the surface tension of liquids, facilitating the harmonious mixing of immiscible oil and water phases. This action is crucial for effectively lifting and removing dirt, excess oil, and impurities from the skin and hair without harshness. Furthermore, it acts as a robust foam booster, elevating the volume and stability of lather, and as a hydrotrope, it enhances the aqueous solubility of other cosmetic ingredients. Its intrinsic antimicrobial properties contribute to maintaining a balanced skin microbiome and can aid in odor control.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Due to its ester linkage, Disodium Undecylenamido PEG-2 Sulfosuccinate is sensitive to hydrolysis, particularly under acidic conditions. Optimal stability is observed within neutral to alkaline pH ranges.
Conflicts
- acidic conditions
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel determined that alkyl PEG sulfosuccinates, including this ingredient, are safe when expertly formulated to be non-irritating. Its substantial molecular size and polarity indicate a low probability of dermal penetration. However, the potential for ocular or skin irritation exists if the formulation is not balanced correctly. Trace impurities such as formaldehyde (up to 0.056%) and 1,4-dioxane (up to 0.001%) have been noted in related sulfosuccinate compounds.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Disodium Undecylenamido PEG-2 Sulfosuccinate is a valuable, mild surfactant offering gentle cleansing, foam enhancement, and broad skin compatibility when meticulously formulated to be non-irritating.
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References
Sources