Science
Mechanism of Action
This ingredient functions by altering surface tension as a surfactant, which allows hydrophobic (oil) and hydrophilic (water) substances to blend, thereby facilitating the detachment and rinsing away of dirt and debris from the skin's surface. As a foam booster, it enhances lather quality, and as a hydrotrope, it improves the solubility of other compounds within a formulation. Given its considerable molecular size and high polarity, significant dermal absorption is not expected, ensuring its primary action is superficial.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Sulfosuccinate compounds exhibit susceptibility to hydrolysis, particularly in highly acidic environments. Optimal stability is achieved within a pH range of 5 to 9, with related sulfosuccinates showing good stability around pH 6.5-7.5 in a 5% aqueous solution. Formulations must be precisely balanced to prevent irritation and ensure ingredient integrity.
Conflicts
- strong acidic conditions (due to hydrolysis sensitivity)
Safety
Safety Profile
The CIR Expert Panel concludes that alkyl PEG sulfosuccinates, including this ingredient, are safe in cosmetic products when precisely formulated to be non-irritating. Improper formulation carries a potential risk of ocular and skin irritation. For related compounds in sprayable cosmetics, a maximum concentration of 2% has been reported. Manufacturers must also address potential contamination by toxic impurities such as 1,4-dioxane, ethylene oxide, and formaldehyde, which are associated with ethoxylated ingredients.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This ingredient is a valuable surfactant and cleansing agent, well-suited for a variety of skin types when incorporated into precisely formulated, non-irritating cosmetic products.
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