COLOR INDEX (CI)
The Color Index (CI) identifies colorants using numbers that designate specific color pigments, such as CI 77007 for ultramarine blue. According to the EU Cosmetics Regulation (EC) No. 1223/2009, colorants in cosmetic products are ingredients that primarily serve to impart color to cosmetic products or parts of the body. Annex IV of the Regulation lists approved colorants that are subject to rigorous safety testing before they may be used. In addition, the Regulation establishes specific maximum concentrations and permitted areas of use for some colorants to ensure the safety of their use in cosmetic products.(1-3)
(1) European Union. (2009). Regulation (EC) No 1223/2009 of the European Parliament and of the Council of November 30, 2009 on cosmetic products.
(2) Wich, E. (1977). The Color Index. Color Research and Application, 2, 77-80.
(3) Bährle-Rapp, M. (2012). Springer Lexikon Kosmetik und Körperpflege. 4th revised and expanded edition. Springer.
