Science
Mechanism of Action
This ingredient operates by disrupting the cellular membranes of microorganisms, including both fungi and bacteria. This action compromises membrane integrity, leading to increased permeability, leakage of vital intracellular components, and ultimately cell death. In the case of fungi, it can also specifically interfere with ergosterol synthesis, a critical component of their cell walls. As a surfactant, MEA-Undecylenate facilitates the mixing of immiscible substances like oil and water, enabling its functions as a cleansing agent to solubilize dirt and an emulsifier to stabilize formulations.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
No specific optimal pH range for stability has been identified in the available research. For optimal shelf-life, formulations containing MEA-Undecylenate should be stored in tightly sealed containers within a cool, dry, and well-ventilated environment.
Conflicts
- Must not be used in cosmetic products where the formation of N-nitroso compounds is a possibility.
- Strictly restricted to rinse-off product formulations only.
Safety
Safety Profile
The CIR Expert Panel concluded that MEA-Undecylenate is safe for use in cosmetic products under current practices, provided the final formulation is non-irritating and restricted solely to rinse-off applications. A crucial safety directive is to avoid its use in products susceptible to forming N-nitroso compounds. While the European Commission permits its use as a preservative at a maximum of 0.2% (acid equivalent), the FDA has also approved related undecylenate derivatives (Undecylenic Acid, Calcium Undecylenate, Zinc Undecylenate) for use in Over-the-Counter antifungal drug products, indicating a broader recognition of this chemical family's antimicrobial properties.
Your Skin
Skin Compatibility
Our Assessment
Verdict
MEA-Undecylenate is a valuable multi-functional ingredient for cosmetic formulations, offering essential preservative, cleansing, and emulsifying properties, although its usage is carefully regulated and limited to rinse-off products requiring precise formulation to ensure non-irritancy.
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References
Sources