1. Regulation (EC) No. 1223/2009 of the European Parliament and of the Council of 30 November 2009 on Cosmetic Products, and Its Successive Amendments. http://eur-lex.europa.eu/legal-content/EN/ALL/?uri=CELEX%3A32009R1223(accessed 7 February 2019).
2. Fifteenth Commission Directive 92/86/EEC of 21 October 1992, Adapting to Technical Progress Annexes II, III, IV, V, VI and VII of Council Directive 76/768/EEC on the Approximation of the Laws of the Member States Relating to Cosmetic Products.
3. Main chemical contaminants in cosmetics: regulatory aspects and analytical methods;Lavilla,2018
4. Nitrosamines;Fernández-Alba,2005
5. Scientific Committee on Consumer Safety opinion SCCS/1458/11 of 27 March 2012, Opinion on Nitrosamines and Secondary Amines in Cosmetic Products.