Science
Mechanism of Action
Operating as a mild anionic surfactant, this ingredient reduces the interfacial tension between water and lipid-based impurities, such as oils and dirt, on the skin's surface. This action facilitates the emulsification and suspension of these particles, allowing for their efficient removal during rinsing, thus contributing to effective skin cleansing.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient demonstrates optimal stability within a pH range of 4.5 to 7.5, performing effectively in weak acidic, weak alkaline, and hard water systems. However, its molecular structure is susceptible to hydrolysis under strong acidic or alkaline conditions. Furthermore, related sulfosuccinates indicate sensitivity to prolonged high temperatures, suggesting caution during storage and high-temperature processing to preserve ingredient integrity.
Conflicts
- Strong acids
- Strong alkalis
- High temperatures (prolonged exposure)
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has assessed this ingredient, classifying it within the alkyl PEG sulfosuccinate group, and concluded it is safe under current usage practices and concentrations when formulated to be non-irritating. Dermal penetration is deemed improbable due to its significant polarity and molecular size. While there is potential for ocular or skin irritation, particularly at elevated concentrations (a related compound showed mild irritation at 10% under specific buffered conditions, but not in 5-10% aqueous solutions), it is approved for EWG VERIFIED products and holds FDA designation for certain food uses.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This mild anionic surfactant is a valuable ingredient for gentle cleansing formulations, effectively removing impurities and being well-tolerated across all skin types when precisely formulated within recommended parameters.
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