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Cyclomethicone
SiliconeEmollientAlso known as: Cyclopentasiloxane, D5, Cyclotetrasiloxane, D4
A lightweight volatile silicone that evaporates after application, leaving a smooth, silky finish without residue.
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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