Silicone

Vinyldimethicone

INCI: VINYLDIMETHICONE

Reviewed by Kate · Last updated 14 Aug 2026

Also known as: Vinyl Dimethicone

A silicone polymer that adjusts product texture and spreadability

Best For Skin Types

All

Usage Frequency

Daily

What Is Vinyldimethicone?

Vinyldimethicone is a silicone-based polymer — a long-chain molecule composed of silicon and oxygen atoms. It belongs to a broader family of silicones widely used in cosmetic formulations to modify how products feel and perform on the skin.

In skincare, vinyldimethicone functions as a viscosity controller, meaning it adjusts the thickness and flow of a formula. This allows formulators to create products with the desired consistency — whether that's a lightweight serum or a richer cream — without compromising efficacy or texture.

How It Works

Vinyldimethicone works by modifying the viscosity — the internal resistance to flow — of a cosmetic formula. By altering how thick or thin a product is, it influences how easily the product spreads, absorbs, and sits on the skin.

This is purely a textural function; vinyldimethicone does not penetrate the skin barrier or exert active skincare effects. Its role is to optimise the sensory experience and delivery of other active ingredients in the formula.

Clinical Evidence & References

Vinyldimethicone is part of a well-studied family of silicone polymers. Safety assessments conducted by cosmetic ingredient review panels have found that silicones in this group, including vinyldimethicone, are not absorbed through the skin following typical cosmetic use, and showed no signs of acute toxicity in standard safety testing.

The ingredient itself has not been the subject of extensive independent clinical trials for skincare benefits, as its purpose is functional rather than therapeutic. Its safety profile in cosmetic products is considered well-established at concentrations used in skincare.

How to Use

Vinyldimethicone is an ingredient added by formulators during product manufacturing, not something you select or apply separately. When using a product containing this ingredient, follow the usage instructions on the label. Its presence should not change how often or how much of the product you use — it simply optimises how the formula performs.

Safety & Precautions

Vinyldimethicone is considered safe for cosmetic use and is not absorbed through the skin. It is generally well-tolerated, though those with extreme silicone sensitivity may wish to patch-test products containing silicone polymers first.

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Other forms of Vinyldimethicone

These appear on ingredients lists under different names but are the same substance. Vinyldimethicone is the common form.

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