Paraben esters: review of recent studies of endocrine toxicity
Review of recent studies of endocrine toxicity, absorption, esterase and human exposure, and discussion of potential human health risks.
14.11.2011 |Journal of Applied Toxicology
The presence of intact paraben esters in human body tissues has now been confirmed by independent measurements in human urine, and the ability of parabens to penetrate human skin intact without breakdown by esterases and to be absorbed systemically has been demonstrated through studies not only in vitro but also in vivo using healthy human subjects.
Using a wide variety of assay systems in vitro and in vivo, the oestrogen agonist properties of parabens together with their common metabolite (p-hydroxybenzoic acid) have been extensively documented, and, in addition, the parabens have now also been shown to possess androgen antagonist activity, to act as inhibitors of sulfotransferase enzymes and to possess genotoxic activity.
With the continued use of parabens in the majority of bodycare cosmetics, there is a need to carry out detailed evaluation of the potential for parabens, together with other oestrogenic and genotoxic co-formulants of bodycare cosmetics, to increase female breast cancer incidence, to interfere with male reproductive functions and to influence development of malignant melanoma which has also recently been shown to be influenced by oestrogenic stimulation.
More detailed information about the review can be found here.
To learn more about endocrine disrupting chemicals and their regulation in the EU, please read SIN List 2.0 targets endocrine disrupting chemicals for priority action in the EU.
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