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* A silicone. See TIA's Silicone Article.


Primarily works as a skin conditioning agent and emollient. Like all other silicones, this ingredient has a unique fluidity that makes it easily spreadable. When applied to the skin, it gives a silky & slippery feeling to the touch and acts a mild water repellent by forming a protective barrier on the skin. It can also fill in fine lines/wrinkles, giving the face a temporary “plump” look.

It is often used in conjunction with cyclopentasiloxane (INCL name Cyclomethicone) to work as a base liquid, carrying agent and wetting agent. It also helps reduce the amount of residue typically associated with deodorants & antiperspirants. You can mainly find it in personal care products such as facial moisturizer/lotion, foundation, anti-aging treatment, sunscreen, concealer and mascara.

Safety Measures/Side Effects:

While there's no evidence pointing to the adverse effects of this ingredient on human life, low concentrations have been shown to harm aquatic life. For this reason, Canada has restricted the use of this ingredient in cosmetic products and silicone breast implants, and includes it on its list of Accelerated Reduction/Elimination of Toxics (ARET).

Recommended Products w/ cyclohexasiloxane:

Epionce Renewal Eye Cream

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