Science
Mechanism of Action
The isostearoyl component enables deeper lipid barrier penetration or protective film formation. It replenishes the skin's Natural Moisturizing Factor (NMF), strengthening the barrier and supporting repair processes.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Journal of Cosmetic Dermatology, 2021; FSS Plant Keratin Technical Data
Transparency
Dusting Analysis
No data available suggests this ingredient is commonly dusted in formulations.
The Formula
Formulation
Stability
Highly stable in anhydrous systems and oil-in-water emulsions. Avoid prolonged high heat (>80°C) to prevent protein degradation.
Conflicts
- Nitrosating agents (due to potential secondary amine impurities)
- Strong oxidizing agents
Safety
Safety Profile
CIR Expert Panel deems plant-derived amino acids safe, but European Commission restricts nitrosamine formation: raw materials must contain <0.5% secondary amines, avoid nitrosating systems, and finished products max 50 μg/kg nitrosamines.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This ingredient is valuable for improving skin moisturization, reducing irritation, and accelerating skin repair across all skin types, and also offers hair conditioning benefits.
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References
Sources