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Plasma concentrations of parabens in postmenopausal women and self-reported use of personal care products: the NOWAC postgenome study

Journal of Exposure Science & Environmental Epidemiology volume 21, pages 595–600 (2011)Cite this article

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Abstract

Parabens are used extensively in personal care products; however, their estrogenic properties have raised concern over risks to human health. High levels of total parabens, mainly as conjugates, have been reported in human plasma/serum, with limited data on native parabens. Our objective was to assess and link plasma concentrations of native common parabens to self-reported use of personal care products in women from the general population. The information was obtained from an extensive questionnaire on diet and lifestyle previously answered by the women in the NOWAC study. Plasma samples from 332 individuals were extracted and cleaned up by automated solid phase extraction and analyzed by ultra high performance liquid chromatography time-of-flight mass spectrometry. Native methyl paraben dominated and was detected in 63% of the samples, with a median level of 9.4 ng/ml. Ethyl paraben (median <3 ng/ml) and propyl paraben (median <2 ng/ml) were detected in 22 and 29%, respectively. Butyl and benzyl parabens were not detected. For the first time, elevated levels of native parabens are reported in women from the general population. The concentrations were significantly associated with the use of skin lotions, indicating that frequent (daily or more) use maintain elevated concentrations despite the parabens short half-lives. These findings clearly emphasize the need to study potential health effects in the general population.

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Acknowledgements

We are very grateful to all participants of the NOWAC study. We also thank Bente Augdal for her efforts in sample handling. This project was funded by “Sparebank1 Nord-Norge” research Funds.

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Authors and Affiliations

  1. Norwegian Institute for Air Research, Fram Centre, Tromsø, Norway

    Torkjel M Sandanger, Sandra Huber & Morten K Moe

  2. Institute of Community Medicine, University of Tromsø, Tromsø, Norway

    Torkjel M Sandanger, Tonje Braathen & Eiliv Lund

  3. Norwegian Institute of Air Research, Kjeller, Norway

    Henriette Leknes

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  1. Torkjel M Sandanger
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  2. Sandra Huber
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Correspondence to Torkjel M Sandanger.

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The findings and conclusions are the authors and do not necessarily reflect the view of NILU or the University of Tromsø. The authors declare no conflict of interest.

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Sandanger, T., Huber, S., Moe, M. et al. Plasma concentrations of parabens in postmenopausal women and self-reported use of personal care products: the NOWAC postgenome study. J Expo Sci Environ Epidemiol 21, 595–600 (2011). https://doi.org/10.1038/jes.2011.22

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