Science
Mechanism of Action
It functions as an occlusive emollient by depositing a microscopic, hydrophobic film across the stratum corneum. This barrier physically impedes transepidermal water loss (TEWL) while simultaneously stabilizing emulsions and adjusting the viscosity of the formulation for a precise application.
Research
Clinical Evidence
High confidence2.5%
Key findings
- 01 Human SIOPT testing confirmed that concentrations up to 5% are non-irritating to the skin barrier.
- 02 A 202-subject RIPT study demonstrated zero signs of sensitization at a 1.5% concentration level.
- 03 Comedogenicity testing showed the pure material is non-clogging, though high concentrations (50%) in specific carriers like mineral oil showed marginal activity.
Transparency
Dusting Analysis
As a functional texture and barrier ingredient, it is rarely 'dusted' for marketing; it is typically used at 1-10% to achieve specific structural goals in a formula. Percentages below 0.5% would likely be insufficient to provide meaningful occlusive benefits.
The Formula
Formulation
Stability
Highly stable due to its long carbon chain length which resists oxidation. It remains robust within standard physiological pH ranges but may undergo hydrolysis if exposed to extreme acidity or alkalinity.
Synergies
- Mineral UV filters
- Ceramides
- High-molecular weight silicones
Conflicts
- Strong oxidizing agents
- Highly acidic exfoliating solutions
Safety
Safety Profile
The CIR Expert Panel designates this ingredient as safe when formulated to be non-irritating. It is particularly well-tolerated in leave-on applications up to 10%.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An excellent precision emollient for dry and sensitive skin types requiring robust barrier protection and elegant texture.
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References
Sources