Science
Mechanism of Action
This ingredient functions by reducing the surface tension between water and oils. As a surfactant, it enables water to effectively mix with and lift away sebum and particulate matter, allowing for thorough rinsing. Its emulsifying properties are crucial for maintaining the stability and homogeneity of formulations containing both aqueous and lipid phases.
Research
Clinical Evidence
Medium confidence≤1%
Key findings
- 01 Considered safe for hair and skin at concentrations of 1% or less; higher concentrations may induce irritation.
- 02 High concentrations are severely irritating to skin, similar to other detergents, with irritancy severity influenced by concentration and pH.
Transparency
Dusting Analysis
As a primary functional surfactant and emulsifier, TEA-Tridecylbenzenesulfonate is typically included in formulations at concentrations intended to achieve its functional purpose while adhering to safety guidelines, rather than being 'dusted' at minimal, ineffective levels.
The Formula
Formulation
Stability
The irritancy potential of TEA-Tridecylbenzenesulfonate is significantly influenced by pH, with optimal formulation achieved within a pH range of 6.5 to 7.5 to minimize adverse reactions. The ingredient itself is an acidic amine salt, typically yielding solutions with a pH below 7.0.
Conflicts
- Avoid use in formulations where N-nitroso compounds can potentially form, due to its triethanolamine (TEA) component.
- High concentrations are incompatible with formulations aiming for mildness, as they can cause significant skin irritation.
Safety
Safety Profile
The CIR Expert Panel deems TEA-Tridecylbenzenesulfonate safe for use when formulated to be nonirritating, specifically at concentrations of 1% or less. Formulators must ensure products minimize irritancy potential, carefully considering concentration and pH. A critical restriction is to avoid its use in products where N-nitroso compounds could form due to the TEA component.
Your Skin
Skin Compatibility
Our Assessment
Verdict
TEA-Tridecylbenzenesulfonate is a valuable cleansing and emulsifying agent, provided it is meticulously formulated at concentrations of 1% or less and within an optimal pH range to prevent irritation and N-nitroso compound formation.
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