Silica Dimethyl Silylate

Silica Dimethyl Silylate

Hydrophobic fumed silica designed for oil thickening, suspension, and advanced texture control.

INCI Name: Silica Dimethyl Silylate

Appearance: Lightweight white fluffy powder

Solubility: Insoluble; dispersible in oils, esters, and silicones

Function: Rheology modifier, suspending agent, oil gellant, anti-settling aid

This surface-treated silica creates three-dimensional networks in anhydrous systems, transforming low-viscosity oils into structured gels while stabilizing pigments, actives, and powders without waxes or polymers.

Supplied as a cosmetic raw material for formulation use.

What It Does

Silica Dimethyl Silylate builds structure in oil-based systems through hydrogen bonding and particle networking, allowing formulators to create stable gels, prevent settling, and fine-tune viscosity without heavy waxes. It delivers elegant slip while maintaining clarity and suspension.

Typical Use Levels

• 0.5 – 1% — Light stabilization and anti-settling
• 1 – 3% — Medium viscosity build and suspension
• 3 – 6% — Strong oil gelling and structural systems

How to Incorporate

• Pre-disperse into oils using high shear mixing.
• Add slowly to avoid agglomeration.
• Allow full wetting before evaluating final viscosity.

Formulation Notes

• Works only in anhydrous or low-water systems.
• Creates thixotropic (shear-thinning) textures.
• Excellent for suspending pigments, actives, and powders.
• Compatible with esters, hydrocarbons, and silicones.

Common Applications

• Lip glosses and oil gels
• Anhydrous serums and treatments
• Pigment suspensions
• Massage gels and structured oils
• Wax-free balm systems

Documents

• Certificate of Analysis (COA)
• Safety Data Sheet (SDS)

Storage

• Store tightly sealed in a dry environment.
• Avoid moisture exposure to maintain performance.
• Handle gently to minimize airborne dust.

Disclaimer

This material is supplied for cosmetic formulation use only. Not intended for direct application without proper formulation. Users are responsible for ensuring product safety and regulatory compliance.