Data sheet Title: <strong>Precursors</strong> <strong>of</strong> <strong>oxidative</strong> <strong>hair</strong> <strong>dyes</strong> <strong>in</strong> <strong>hair</strong> colour<strong>in</strong>g <strong>formulations</strong> Subtitle: Analytical chemical control <strong>of</strong> chemical substances and chemical preparations Authors: Suresh C. Rastogi, Inge M. Worsøe and Gitte H. Jensen Department: Department <strong>of</strong> Atmospheric Chemistry Serial title and no.: Research Notes from Neri, No. 175 Publisher: M<strong>in</strong>istry <strong>of</strong> the Environment National Environmental Research Institute © URL: http://www.dmu.dk Date <strong>of</strong> publication: January 2003 Referee: Asger B. Hansen Please cite as: Rastogi S. C., Worsøe I. M. & Jensen, G.H. 2003: <strong>Precursors</strong> <strong>of</strong> <strong>oxidative</strong> <strong>hair</strong> <strong>dyes</strong> <strong>in</strong> <strong>hair</strong> colour<strong>in</strong>g <strong>formulations</strong>. Analytical chemical control <strong>of</strong> chemical substances and chemical preparations. National Environmental Research Institute, Denmark. 25pp Research Notes from NERI 175 2 Reproduction is permitted, provided the source is explicitly acknowledged. Abstract In the present study, 18 <strong>hair</strong> colour<strong>in</strong>g <strong>formulations</strong> and 4 henna products were analysed for the content <strong>of</strong> 19 precursors <strong>of</strong> <strong>oxidative</strong> <strong>hair</strong> <strong>dyes</strong> to check their compliance with the Cosmetic Directive. The henna products were also analysed for the content <strong>of</strong> Lawsone. Toluene-2,5-diam<strong>in</strong>e was present <strong>in</strong> 16/18 <strong>of</strong> <strong>hair</strong> colour<strong>in</strong>g <strong>formulations</strong>, resorc<strong>in</strong>ol <strong>in</strong> 15/18 products, 2-methylresorc<strong>in</strong>ol <strong>in</strong> 6/18 products, 4-chlororesorc<strong>in</strong>ol <strong>in</strong> 4/18 products, 2,7-naphthalenediol <strong>in</strong> 3/18 products, 4-am<strong>in</strong>ophenol <strong>in</strong> 6/18 products, and 2-am<strong>in</strong>ophenol was present <strong>in</strong> 1/18 <strong>of</strong> the products. Only one <strong>of</strong> the four henna products conta<strong>in</strong>ed Lawsone. 1,4-phenylenediam<strong>in</strong>e was not present <strong>in</strong> any <strong>of</strong> the <strong>in</strong>vestigated products. The contents <strong>of</strong> precursors <strong>of</strong> <strong>hair</strong> <strong>dyes</strong> <strong>in</strong> the <strong>in</strong>vestigated products were <strong>in</strong> compliance with the Cosmetic Directive. Keywords: EU Cosmetic Directive (kosmetik bekendtgørelse), <strong>hair</strong> colour<strong>in</strong>g <strong>formulations</strong>, henna, oxidation <strong>hair</strong> <strong>dyes</strong>, phenylenediam<strong>in</strong>es, toluenediam<strong>in</strong>es, am<strong>in</strong>ophenols, resorc<strong>in</strong>ol, 4-chlororesorc<strong>in</strong>ol, 2-methyl resorc<strong>in</strong>ol, 1-naphthol, 2,7-naphthalenediol, hydroqu<strong>in</strong>one, 2-am<strong>in</strong>o-3-hydroxypyrid<strong>in</strong>e, 4-hydroxy-2-methylanil<strong>in</strong>e, Lawsone Layout: Majbritt Ulrich ISSN (electronic): 1399-9346 Number <strong>of</strong> pages: 25 Internet-version: The report is only available as a PDF-file from NERI’s homepage http://www.dmu.dk/1_viden/2_Publikationer/3_fagrapporter/rapporter/ AR175.pdf For sale at: M<strong>in</strong>istry <strong>of</strong> the Environment Frontl<strong>in</strong>ien Strandgade 29 DK-1401 København K Tel. +45 32 66 02 00 Frontl<strong>in</strong>ien@frontl<strong>in</strong>ien.dk
Change language