Science
Mechanism of Action
It acts as an emulsion stabilizer by increasing the internal phase viscosity, which prevents the separation of oil and water phases. On the skin, it creates a hydrophobic film, enhancing the physical barrier against environmental allergens and irritants.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Demonstrated significant barrier protection and symptom relief (itching/burning) in patients with eczematous dermatitis (atopic, irritant, allergic contact dermatitis).
- 02 Shown to be non-irritating and form a water-impermeable barrier in a 21-day cumulative irritation study.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Highly stable in anhydrous systems and water-in-oil emulsions. Effectiveness may decrease below pH 4 due to degradation into stearic acid.
Conflicts
- Strong acids (causes decomposition)
- Strong oxidizing agents
- Aspirin (facilitates hydrolysis)
- Primary amines (may facilitate Maillard reactions in specific conditions)
Safety
Safety Profile
The CIR Expert Panel includes this as part of the fatty acid salts group and considers it safe when formulated to be non-irritating. Dermal absorption is negligible, and it is FDA-cleared for use in medical device creams.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A valuable ingredient for enhancing skin barrier function and stabilizing formulations, particularly beneficial for sensitive and compromised skin.
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References
Sources