Science
Mechanism of Action
It functions by reducing the surface tension between water and oils, allowing for effective emulsification and debris removal. As a foam booster, it increases the volume and stability of bubbles, while its fatty acid chain provides a mild conditioning effect to the skin's surface during the cleansing process.
Research
Clinical Evidence
Medium confidence10%
Key findings
- 01 A formulation study demonstrated that 10% Cocamide DEA enhanced foam capacity by 69.38% in transparent soap systems while maintaining a pH of 8.9.
- 02 A CIR Expert Panel irritation test on 15 volunteers confirmed that a 10% concentration resulted in minimal clinical or subjective irritation under normal use conditions.
Transparency
Dusting Analysis
Typically used as a functional secondary surfactant or thickener; levels below 1% may indicate it is being used solely for label claims rather than structural formulation benefits.
The Formula
Formulation
Stability
Highly sensitive to temperature, becoming unstable above 31.6°C (89°F). It is subject to hydrolysis in the presence of strong mineral acids or high alkali concentrations.
Synergies
- Anionic surfactants
- Coconut-derived fatty acids
Conflicts
- Nitrosating agents
- Strong oxidizing agents
Safety
Safety Profile
Classified by the IARC as a Group 2B carcinogen (possibly carcinogenic to humans). It must not be used in formulations containing nitrosating agents due to the risk of forming carcinogenic nitrosamines.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While effective for foam architecture and viscosity, its high comedogenicity and classification as a possible carcinogen make it a sub-optimal choice for precision skincare.
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References
Sources