Science
Mechanism of Action
This ingredient operates by seamlessly filling microscopic gaps between dead skin cells, which instantly imparts a soft and smooth feel to the skin. It creates a thin, protective barrier on the skin's surface, effectively shielding against external irritants, allergens, and environmental aggressors. This film is crucial for minimizing transepidermal water loss, thereby locking in hydration and bolstering the integrity of the skin's lipid barrier. Additionally, it significantly improves the tactile experience of cosmetic products, ensuring smooth spreadability and a luxurious, non-greasy finish.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Concentrations between 4% and 12% are recommended for cosmetic oil formulation systems. This range effectively delivers outstanding lubricity, gloss, excellent hydrophobicity, and superior compatibility, alongside notable film-forming capabilities and significant moisture retention benefits.
Transparency
Dusting Analysis
No data available indicates that Stearyl Dimethicone is commonly 'dusted' or associated with adverse effects at specific concentration thresholds.
The Formula
Formulation
Stability
Stearyl Dimethicone is highly suitable for cosmetic oil formulation systems, typically requiring heating and melting for proper integration with other solid or liquid components. It can also be incorporated effectively into the oil phase of emulsion systems. For optimal product integrity, storage at temperatures below 25°C (77°F) is recommended.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed that Stearyl Dimethicone and related dimethicone polymers are safe for use in cosmetic formulations. Given their large molecular weight, significant absorption into the skin is considered unlikely. While a historical maximum concentration of 5% has been reported for the related ingredient Stearoxy Dimethicone, Stearyl Dimethicone itself is generally regarded as non-toxic, with a low potential for skin irritation or sensitization.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Stearyl Dimethicone is a valuable ingredient for enhancing skin smoothness, providing sustained hydration through its film-forming properties, and contributing to the refined sensory experience of cosmetic formulations.
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