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To: Solon who wrote (6895)4/5/2002 12:31:46 AM
From: E  Read Replies (1) | Respond to of 21057
 
My intuition tells me that it would be weirder for estrogen not to have biological effects on those to whom it's topically applied that for it to have those effects. They haven't done the study to prove it's the products. But they've done plenty of estrogen studies, and no study proving that estrogen administered via hair care products doesn't have effects similar to those other topically-applied estrogen does.

Obesity is also a suspect in early puberty, though. I believe it is also via a hormonal link.

The three articles.... do you mean three studies, or three articles on the subject, including those stimulated by the article I posted? because here are the other two, if it's interest you're gauging! I'll bet we hear more about this:

healthanswers.telstra.com

telegraph.co.uk

<<In 1998 Tiwary, now retired, published a study of four girls - including a 14-month-old - who developed breasts or pubic hair months after beginning to use such products. The symptoms started to disappear when they stopped using them. The year before, he published a study showing that some of the products used by his patients contained up to four milligrams of oestradiol per 100 grams. Others contained up to two grams of oestriol per 100 grams.

Readily absorbed

B&B Super Gro, for example, which was marketed before 1994 and is still on sale in the US and claims to be "rich in hormones", was found to contain 1.6 grams of oestriol per 100 grams. While the levels of oestriol in the products were much higher, oestradiol is a far more potent form of oestrogen.

There is no doubt that oestrogens are readily absorbed through the skin--hormone therapy is often delivered via patches. Long-term exposure to these doses could cause premature puberty, Tiwary believes.

And his studies are not the only ones hinting at a possible effect. Anecdotal reports in scientific papers going back to 1982 describe early puberty in children after use of hair treatments, as well as certain ointments. Tiwary notified the FDA of his concerns in 1994, but says he never received a reply.>>