Science
Mechanism of Action
As a synthetic derivative of hectorite clay, Disteardimonium Hectorite functions as a versatile rheology modifier. It works by creating a stable network within oil or silicone phases, which precisely regulates product viscosity. Chemically, it is a positively charged quaternary ammonium compound that achieves uniform dispersion by exchanging sodium ions for stearyldimonium C18 groups, allowing it to attract and suspend negatively charged molecules. This action stabilizes emulsions, prevents settling, and can enhance the water-resistance of formulations. Its high molecular weight and positive charge ensure it remains on the skin's surface, contributing to a light, smooth application without penetration.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 Demonstrated non-irritating to human skin in patch tests at concentrations up to 15% when contained in a specific emulsion base.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
This ingredient exhibits robust pH and heat stability across typical cosmetic use conditions. For optimal integration, it should be dispersed in oil or silicone phases and subsequently activated using ethyl alcohol or propylene carbonate.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that Disteardimonium Hectorite is safe for use in cosmetics and personal care products. The highest reported concentration of use was 28% in leave-on makeup preparations, with 4% noted in rinse-off hair coloring preparations. Due to its high molecular weight and positive charge, it is not expected to penetrate the skin.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Disteardimonium Hectorite is a valuable formulation ingredient, crucial for optimizing product texture and stability while being well-tolerated across all skin types with a low risk of irritation or comedogenicity.
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