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Environ Int

Title:		Concentrations of cyclic volatile methylsiloxanes in European cosmetics and personal care products: prerequisite for human and environmental exposure assessment
Author(s):		Dudzina T; von Goetz N; Bogdal C; Biesterbos JW; Hungerbuhler K;
Address:		"Institute for Chemical and Bioengineering, ETH Zurich, 10 Wolfgang Pauli Strasse, 8093 Zurich, Switzerland"
Journal Title:		Environ Int
Year:		2014
Volume:		20131031
Issue:
Page Number:		86 - 94
DOI:		10.1016/j.envint.2013.10.002
ISSN/ISBN:		1873-6750 (Electronic) 0160-4120 (Linking)
Abstract:		"Low molecular weight cyclic volatile methylsiloxanes (cVMSs) are widely employed as emollients and carrier solvents in personal care formulations in order to acquire desired performance benefits owing to their distinctive physicochemical properties. Under current European legislation cosmetic ingredients such as cVMSs are required to be labeled on the product package only qualitatively, while for the assessment of environmental and consumer exposure quantitative information is needed. The aim of this study was therefore to measure concentrations of three cVMSs, namely octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5) and dodecamethylcyclohexasiloxane (D6) in 51 cosmetics and personal care products (C&PCPs) that are currently available on the European market. The list of selected articles comprised a variety of hair and sun care products, skin creams and lotions, deodorants including antiperspirants, liquid foundations and a toothpaste. The target compounds were extracted from the products with different organic solvents dependent on the product matrix, followed by gas chromatography analysis with flame ionization detection (GC-FID). D5 was the predominant cVMS with the highest mean and median concentrations in all the C&PCP categories. The median concentrations of D5, D6 and D4 were 142, 2.3 and 0.053 mg/g in deodorants/antiperspirants (n = 11); 44.6, 30.0mg/g and below the limit of quantification (
Keywords:		"Administration, Cutaneous Cosmetics/*chemistry Environmental Exposure Europe Humans Siloxanes/*analysis/chemistry Concentrations Cosmetics and personal care products Cyclic siloxanes Cyclomethicone cVMSs;"
Notes:		"MedlineDudzina, Tatsiana von Goetz, Natalie Bogdal, Christian Biesterbos, Jacqueline W H Hungerbuhler, Konrad eng Netherlands 2013/11/05 Environ Int. 2014 Jan; 62:86-94. doi: 10.1016/j.envint.2013.10.002. Epub 2013 Oct 31"