Silica Dimethyl Silylate ●
TL;DR. This ingredient is primarily a rheology modifier and suspending agent, especially in anhydrous oils, balms, sticks, and powders. It helps build viscosity, reduce settling, improve slip, and control flow without adding water-soluble gums.
What does Silica Dimethyl Silylate do in a cosmetic formula?
This ingredient is primarily a rheology modifier and suspending agent, especially in anhydrous oils, balms, sticks, and powders. It helps build viscosity, reduce settling, improve slip, and control flow without adding water-soluble gums.
Is Silica Dimethyl Silylate clean?
From a clean-beauty perspective, this ingredient is generally low-irritation on skin, but loose-powder inhalation is the main practical concern. Some standards scrutinize it because it is a surface-treated mineral rather than a simple untreated mineral powder.
Is Silica Dimethyl Silylate sustainable?
This material starts from mineral-derived it and is chemically surface-treated to make it oil-dispersible and water-repellent. It is not meaningfully biodegradable, but it is generally inert and not associated with bioaccumulation in the way some silicone fluids are.
Is Silica Dimethyl Silylate COSMOS-approved?
It has limited COSMOS alignment: untreated mineral forms are generally compatible, but this surface-treated material is not a straightforward COSMOS-natural or COSMOS-organic fit unless a supplier has specific approval. From a Green Chemistry view, the mineral backbone is simple, but the surface treatment and non-biodegradable profile make it a compromise.
How does Silica Dimethyl Silylate work chemically?
The molecule is a high-surface-area inorganic it network whose surface hydroxyl groups have been capped with hydrophobic organosilicon groups, which lets it thicken oils and volatile fluids. It is typically used at low single-digit levels, often around 0.5 to 5%, and performs best in anhydrous systems where strong mixing can fully disperse the fine particles.
Last updated 2026-05-13