Science
Mechanism of Action
As an amphoteric surfactant, Sodium Stearoamphoacetate operates by significantly reducing the interfacial tension between diverse components in a formula. This action promotes the emulsification of water, oil, and impurities, enabling them to mix and be efficiently rinsed away from the skin or hair surface during cleansing.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient exhibits water solubility, with an estimated solubility of 108.4 mg/L at 25 °C.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded Sodium Stearoamphoacetate, along with related fatty amphocarboxylates, to be safe for cosmetic use under current industry practices and concentrations. This safety is conditional on formulations being non-sensitizing. The CIR report does not specify a singular maximum concentration but refers to its safety within existing usage patterns. It is also included in the US FDA Voluntary Cosmetic Registration Program (VCRP), and no specific SCCS opinion was identified.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Sodium Stearoamphoacetate is a valuable amphoteric surfactant for its effective cleansing, foaming, and conditioning properties, generally well-tolerated across all skin types when formulated appropriately.
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References
Sources