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Cyclopentasiloxane vs Triclosan: which is worse?

Quick answer: Triclosan carries the heavier risk profile. Cyclopentasiloxane is restricted in the EU and allowed in the US; Triclosan is restricted in the EU and allowed in the US.

PropertyCyclopentasiloxaneTriclosan
EU statusRestrictedRestricted
US statusAllowedAllowed
Risk levelmediumhigh
Banned in
Restricted inEuropean UnionEuropean Union
Categoryendocrine disruptorendocrine disruptor
Where it hideshair serum, primer, deodorantantibacterial soap, toothpaste, deodorant

What is Cyclopentasiloxane?

Cyclopentasiloxane is a volatile silicone (D5) used for smooth, silky texture.

What is Triclosan?

Triclosan is an antibacterial and antifungal agent.

Documented risks

Cyclopentasiloxane: Persistent and bioaccumulative; the EU restricts D5 in wash-off products over environmental and endocrine concerns. The US has no restriction.

Triclosan: An endocrine disruptor linked to antibiotic resistance. Restricted in the EU and banned in US over-the-counter antibacterial soaps, but still allowed in some products.

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