The Spanish Act 29/2009 has adapted the Directive 2005/29/EC of the European Parliamentand of the Council of 11 May 2005, concerning unfair business-to-consumercommercial practices in the internal market. The purpose of the Act, and the Directive,is to contribute to the proper functioning of the internal market and achieve a highlevel of consumer protection. Thereby, those documents also indirectly protect legitimatebusinesses from their competitors who do not play by the rules in the Directiveand in the Spanish Act and thus guarantees fair competition in fields coordinated bythem. In this report, we analyze the main aspects of the legal reform, directly relatedto influencing consumers’ transactional decisions in relation to products.