Best For Skin Types
All, Dry, Combination
Addresses
Usage Frequency
Daily
What Is Glyceryl Dimethylsiloxanes?
Glyceryl dimethylsiloxanes are silicone-based polymers derived from silica and glycerin. They belong to a class of ingredients called silicones, which are widely used in skincare, haircare and cosmetics for their conditioning and film-forming properties.
In skincare formulations, this ingredient functions as an emollient and slip agent. It sits on the skin's surface to create a smooth, even texture and helps other ingredients spread more easily across the skin.
How It Works
Glyceryl dimethylsiloxanes form a thin, non-occlusive film on the skin's surface. This layer smooths the skin topography and creates a silky texture, which can temporarily improve how light reflects off the skin and reduce the visibility of minor surface irregularities.
The ingredient does not significantly penetrate the skin barrier. Instead, it remains on the surface, where it can be easily removed with cleansing.
Clinical Evidence & References
Silicones in general are well-established in cosmetic formulations and are recognised as safe by regulatory bodies including the European Commission and the FDA. However, specific clinical studies focusing solely on glyceryl dimethylsiloxanes in skincare are limited.
Evidence supports the use of silicone polymers for improving the sensory and spreadability properties of formulations, and for creating a temporary smoothing effect on skin. More targeted research on this specific ingredient would help clarify its individual benefits and any long-term effects on skin barrier function.
How to Use
This ingredient is typically incorporated into formulations by manufacturers rather than used as a standalone product. It is generally well-tolerated when used in finished skincare products. As with all skincare, patch testing is sensible if you have very sensitive or reactive skin, and discontinue use if irritation occurs.
Safety & Precautions
Frequently Asked Questions
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Dioleyl Tocopheryl Methylsilanol
A vitamin E derivative that protects skin from oxidative stress and supports the skin barrier
Diphenyl Dimethicone
A silicone polymer that conditions skin and hair whilst helping formulations flow smoothly
Diphenyl Dimethicone …
A silicone-based thickener that stabilises texture and feel in skincare formulations
Glyceryl Undecyl Dimethicone
A silicone film-former that creates a smooth, protective surface layer
Glycidoxy Dimethicone
A silicone conditioner that smooths and protects the hair fibre
Hydrogen Dimethicone
A silicone film-former that creates a protective barrier on the skin surface
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