Science
Mechanism of Action
Behenyl Dimethicone utilizes a long-chain C22 behenyl group to elevate its melting point, allowing it to function as a structured gel or wax at skin temperature. It creates a semi-occlusive, hydrophobic barrier that prevents transepidermal water loss (TEWL) and stabilizes the oil phase of formulas, ensuring a smooth, non-greasy finish.
Research
Clinical Evidence
High confidence4%
Key findings
- 01 Reached critical micelle concentration in vegetable oils, effectively gelling the formula to provide a sophisticated, dry-touch silicone feel to natural lipids.
- 02 Clinical safety assessments in leave-on ocular applications demonstrated zero dermal irritation or sensitization.
Transparency
Dusting Analysis
While often used at lower levels for simple texture enhancement, concentrations below 4% may not achieve the full structural gelling benefits required for significant barrier support in oil-heavy systems.
The Formula
Formulation
Stability
Highly resilient to thermal degradation up to 85°C and stable across a broad pH spectrum. Insoluble in water; requires proper emulsification.
Synergies
- Soybean oil
- Isododecane
- Mineral oil
- Cyclopentasiloxane
Conflicts
- Strong oxidizing agents
Safety
Safety Profile
Safe for standard topical and pump spray use. Limits on cyclic siloxane (D4/D5) impurities should be maintained below 100ppm for purity.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A high-performance texturizer and barrier-support agent that imparts a luxurious, non-comedogenic finish to oil-based phases.
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References
Sources