Ingredient
Cyclopentasiloxane
What is Cyclopentasiloxane?
Cyclopentasiloxane is a type of silicone commonly used in personal care products. It is a clear, odorless liquid with a silky feel, derived from silicon, a naturally occurring element.
This ingredient is popular for its ability to impart a smooth, spreadable texture and is used to reduce the tacky feel of heavier products. While generally considered safe in topical applications, some concerns have arisen about potential accumulation in the environment and possible effects on the body when inhaled or used in large amounts.
When you see cyclopentasiloxane on a label, it is typically serving the purpose of improving product texture rather than providing a direct health benefit.
Commonly found in: Deodorants, Lotions, Conditioners, Creams, Serums
What to watch
- There are environmental concerns about its persistence and accumulation.
- The potential for inhalation exposure raises questions about respiratory effects.
Benefits
- Helps in making products feel smooth and less greasy on the skin.
Silicones like cyclopentasiloxane are generally approved for use in personal care products, but are not specifically reviewed by the FDA.
While evidence suggests it is safe in small amounts, concerns about environmental persistence and bioaccumulation remain.
Cyclopentasiloxane is typically considered vegan as it is not derived from animal products.
Scout's take
Cyclic silicone classified by the EU's ECHA as vPvB (very persistent, very bioaccumulative). REACH-restricted in wash-off cosmetics since 2020 and listed under Canada's CEPA toxic substances. Aquatic-toxic.
Found in 7 products
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