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Cyclomethicone

SiliconeEmollient

Also known as: Cyclopentasiloxane, D5, Cyclotetrasiloxane, D4

Best for:All

A lightweight volatile silicone that evaporates after application, leaving a smooth, silky finish without residue.

Time to results

Results vary by individual and formulation

Benefits

Silky feel, improves product spreadability, quick-drying, helps deliver active ingredients, non-comedogenic.

How to Use

Present in many primers, serums, and creams. Evaporates after application.

Technical Details
Typical Concentrations1%-20%
Research Summary

Effective carrier and sensory enhancer. Environmental concerns regarding persistence in aquatic environments led to EU restrictions on D4.

Cautions

D4 (cyclotetrasiloxane) restricted in EU due to environmental persistence. D5 under scrutiny. Not biodegradable.

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