First off I have to give the topic title credit to the news paper article title I'm getting this info from. The article is from Feb. 1, 2007 and I have had it posted on my bulletin board since, to sum it up:
"Dr. Clifford Block of Pediatric Endocrine Associates in Greenwood Village, Colo., and colleagues reported." "The lavender and tea tree oils found in some soaps, shampoos, hair gels and body lotions can produce enlarged breasts in boys" since "these oils can act in ways similar to the hormone estrogen"
The study was published in the New England Journal of Medicine it was also noted that it is unknown if women/girls will gain a similar response.
Full Version: Fancy soaps make boys girly
From what I understand, estrogen-like compounds are in tons of things. And some think this is the biggest reason why male fertility rates have dropped significantly over the past 40+ years.
It's not just male fertility. Xenoestrogens are screwing with everyone. Cancer, fertility, gynecomastia, early puberty, estrogen-related diseases like endometriosis and the like. It's scary. Science daily just ran an article about Bisphenol A and how it makes normal breast cells act like cancer cells. We're all exposed to that compound several times a day I bet.
QUOTE (Odium @ Apr 6 2008, 06:12 AM) 
It's not just male fertility. Xenoestrogens are screwing with everyone. Cancer, fertility, gynecomastia, early puberty, estrogen-related diseases like endometriosis and the like. It's scary. Science daily just ran an article about Bisphenol A and how it makes normal breast cells act like cancer cells. We're all exposed to that compound several times a day I bet.
please expand
On what in particular? Just Google xenoestrogens and you'll find out all you want to know. They're in our foods (pesticides), shampoos, soaps, shaving creams, air fresheners, plastic containers, plastic-lined cans, fabric softeners, .... it just goes on and on. They are highly disruptive.
Being a user of transdermals, the last one freaks me out a bit.
Being a user of transdermals, the last one freaks me out a bit.
QUOTE
1: N Engl J Med. 2007 Feb 1;356(5):479-85.Click here to read Links
Comment in:
N Engl J Med. 2007 Jun 14;356(24):2541-2; author reply 2543-4.
N Engl J Med. 2007 Jun 14;356(24):2542-3; author reply 2543-4.
N Engl J Med. 2007 Jun 14;356(24):2542; author reply 2543-4.
N Engl J Med. 2007 Jun 14;356(24):2543; author reply 2543-4.
Prepubertal gynecomastia linked to lavender and tea tree oils.
Henley DV, Lipson N, Korach KS, Bloch CA.
Receptor Biology Section, Laboratory of Reproductive and Developmental Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA.
Most cases of male prepubertal gynecomastia are classified as idiopathic. We investigated possible causes of gynecomastia in three prepubertal boys who were otherwise healthy and had normal serum concentrations of endogenous steroids. In all three boys, gynecomastia coincided with the topical application of products that contained lavender and tea tree oils. Gynecomastia resolved in each patient shortly after the use of products containing these oils was discontinued. Furthermore, studies in human cell lines indicated that the two oils had estrogenic and antiandrogenic activities. We conclude that repeated topical exposure to lavender and tea tree oils probably caused prepubertal gynecomastia in these boys. 2007 Massachusetts Medical Society
PMID: 17267908 [PubMed - indexed for MEDLINE
Comment in:
N Engl J Med. 2007 Jun 14;356(24):2541-2; author reply 2543-4.
N Engl J Med. 2007 Jun 14;356(24):2542-3; author reply 2543-4.
N Engl J Med. 2007 Jun 14;356(24):2542; author reply 2543-4.
N Engl J Med. 2007 Jun 14;356(24):2543; author reply 2543-4.
Prepubertal gynecomastia linked to lavender and tea tree oils.
Henley DV, Lipson N, Korach KS, Bloch CA.
Receptor Biology Section, Laboratory of Reproductive and Developmental Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA.
Most cases of male prepubertal gynecomastia are classified as idiopathic. We investigated possible causes of gynecomastia in three prepubertal boys who were otherwise healthy and had normal serum concentrations of endogenous steroids. In all three boys, gynecomastia coincided with the topical application of products that contained lavender and tea tree oils. Gynecomastia resolved in each patient shortly after the use of products containing these oils was discontinued. Furthermore, studies in human cell lines indicated that the two oils had estrogenic and antiandrogenic activities. We conclude that repeated topical exposure to lavender and tea tree oils probably caused prepubertal gynecomastia in these boys. 2007 Massachusetts Medical Society
PMID: 17267908 [PubMed - indexed for MEDLINE
Very interesting. I had been using Dr. Bronner's tea tree oil soap to reduce the blemishes that seem to popup every now and then on random parts of my body... but it seems like doing a full body soak in tea tree oil is not a very good idea...
QUOTE (Odium @ Apr 6 2008, 11:08 AM)
On what in particular? Just Google xenoestrogens and you'll find out all you want to know. They're in our foods (pesticides), shampoos, soaps, shaving creams, air fresheners, plastic containers, plastic-lined cans, fabric softeners, .... it just goes on and on. They are highly disruptive.
Being a user of transdermals, the last one freaks me out a bit.
Being a user of transdermals, the last one freaks me out a bit.
BPA in anything other than plastic microwaved?
QUOTE (liorrh @ Apr 7 2008, 10:30 AM)
BPA in anything other than plastic microwaved?
Polycarbonate Nalgene™ water bottles.
Full Text Here. It seems that tea tree oil only has weak oestrogenic activity, and that lavender oil is of relatively greater concern.
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