I do cosmetic formulation. There are alternatives out there, but they are not frequently used. At the moment, the formulation bible tells me that the parabens that are specifically used in cosmetics are better than the bacteria and mould that would develop in the products if they weren’t included in the formulas. I think the sheer volume of them being used isn’t good, but the commercial companies love them because they are cheap, effective and allowed. Some types have been banned in their use as flame retardant (methylparabens) materials due to their toxicity, but if you own old furniture, you are probably sitting on and absorbing the crap through your skin that way.
There ARE alternatives. You do not have to buy moisturisers and leave on products with parabens.
In the US, formulations are not as restricted as they are here in the EU. For example. formaldehyde based preservatives and boric acid are both permissible in products for children in the US. Talc is permissible everywhere (not a product I would ever use after the reading I have done.) The idea is to be an informed consumer. There is a product on the market for formulators that goes by the trade name of Optiphen. It is paraben and formaldehyde free and the ONLY preservative I would put in a leave on product.
Really, when these studies come out, they don’t know if it is a chicken and the egg sort of scenario. Does the build-up of chemical come from the condition or does the chemical accumulate and cause the condition? I have said this over and over again on this forum when questions like this come up, in a normal, healthy adult, we are able to metabolise or simply excrete waste products, but there are those of us with sensitivities, allergies or compromised immune systems that need to be more aware of what we eat and put on our skin.
Look for Phenoxyethanol (and) Caprylyl Glycol (and) Sorbic Acid instead of the *something*paraben. If there is a paraben in it, check that it is propylparaben (closer to the naturally occurring type of paraben in plants) and avoid methylparaben.
And DO remember that these are ALSO in food, under the E numbers. Look them up if you want to avoid them both in food and in your personal products.
Atrazine (a widely used agricultural chemical that has been banned Europe but allowed in the US) and PBAs (an additive to plastics to make them soft that is banned for use in baby/children’s products in the EU but allowed in the US) also effect hormone change.
Oh… I was just looking for some good info to link to and found a good TED talk. Here:
http://www.ted.com/talks/tyrone_hayes_penelope_jagessar_chaffer_the_toxic_baby.html