"A 2006 triclosan study concluded that low doses of triclosan act as an endocrine disruptor in the North American bullfrog. The hypothesis proposed is that triclosan blocks the metabolism of thyroid hormone, because it chemically mimics thyroid hormone, and binds to the hormone receptor sites, blocking them, so that normal hormones cannot be utilized.
Triclosan is used in many common household products including Clearasil Daily Face Wash, Dentyl mouthwash, the Colgate Total range, Pepsodent, Softsoap, Dial, Right Guard deodorant, Sensodyne Total Care, Old Spice and Mentadent"
Source: health-report.co.uk/triclosan.html
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