Silica Dimethyl Silylate

Silica Dimethyl Silylate

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

INCI Name: Silica Dimethyl Silylate

Appearance: Lightweight white fluffy powder

Surface Treatment: Dimethyl silylation (hydrophobic surface-modified silica)

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.

Typical Use Levels

• 0.5 – 1% — Light stabilization
• 1 – 3% — Medium viscosity build
• 3 – 6% — Strong oil gelling

How to Incorporate

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

Formulation Notes

• Works only in anhydrous systems.
• Creates thixotropic textures.
• Excellent suspension performance.

Applications

• Lip glosses
• Anhydrous serums
• Pigment dispersions

Documents

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

Storage

• Store in a dry environment.
• Avoid moisture exposure.

Disclaimer

This material is supplied for cosmetic formulation use only.