Science
Mechanism of Action
This amphiphilic molecule features a lipophilic dodecylbenzene tail and a hydrophilic sulfonate head. It functions by lowering the interfacial tension between water and oil, facilitating the creation of stable micelles that encapsulate and remove excess sebum, environmental pollutants, and lipid-based impurities from the skin surface.
Research
Clinical Evidence
Medium confidence3%
Key findings
- 01 Amended safety assessments indicate that concentrations exceeding 15% act as severe primary irritants, though no evidence of sensitization (allergic response) was observed.
- 02 Human patch testing on related salts demonstrates that concentrations below 3.0% are generally non-irritating, provided the formulation maintains a near-neutral pH.
Transparency
Dusting Analysis
Because this ingredient is an industrial-strength surfactant often found in detergents, its inclusion in high-end skincare at very low levels (below 1%) may serve purely as a secondary emulsifier rather than a primary functional cleanser.
The Formula
Formulation
Stability
Maintains stability in hard water and standard conditions; however, it is highly sensitive to strong acids which can trigger hydrolysis or neutralization.
Synergies
- Non-ionic surfactants
- Isobutanol co-solvents
Conflicts
- Cationic surfactants
- Strong oxidizing agents
- Strong acids
Safety
Safety Profile
Safe for cosmetic use specifically when formulated to be non-irritating. The primary risk is mechanical irritation at high concentrations or extreme pH levels.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An effective but aggressive surfactant that is better suited for industrial applications or rinse-off products than precision leave-on skincare.
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References
Sources