Silicone

Glyceryl Dimethylsiloxanes

INCI: GLYCERYL DIMETHYLSILOXANES

Reviewed by Daisy · Last updated 14 Aug 2026

A silicone polymer that creates a smooth, protective surface layer on skin

Best For Skin Types

All, Dry, Combination

Addresses

Dryness, Rough texture

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

Glyceryl dimethylsiloxanes are generally well-tolerated and recognised as safe in cosmetic formulations. They are non-irritating for most skin types, though those with silicone sensitivity should avoid products containing this ingredient.

Frequently Asked Questions

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