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Quick answer: Triclosan carries the heavier risk profile. Octamethylcyclotetrasiloxane is restricted in the EU and allowed in the US; Triclosan is restricted in the EU and allowed in the US.
| Property | Octamethylcyclotetrasiloxane | Triclosan |
|---|---|---|
| EU status | Restricted | Restricted |
| US status | Allowed | Allowed |
| Risk level | medium | high |
| Banned in | — | — |
| Restricted in | European Union | European Union |
| Category | endocrine disruptor | endocrine disruptor |
| Where it hides | hair products, deodorant | antibacterial soap, toothpaste, deodorant |
Octamethylcyclotetrasiloxane (Cyclotetrasiloxane) is a volatile silicone (D4).
Triclosan is an antibacterial and antifungal agent.
Octamethylcyclotetrasiloxane: A persistent, bioaccumulative endocrine disruptor; the EU restricts D4.
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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