The paper investigates the impact of corporate social responsibility on consumer behavior based on data from research conducted by the "Puls" agency in 2007 and on data from a 2022 research conducted by the author of the paper. The aim of the research is to determine what changes have taken place in the past fifteen years, that is, whether there are any positive changes in the respondents' views on the impact of corporate social responsibility on consumer purchasing behavior on the market. The results of the research show that there are positive changes in the attitudes of respondents in the understanding and perception of the term, primarily through the understanding and perception of the term sustainable development and social responsibility of business. When buying a product, consumers pay more and more attention to the fact that the manufacturer is socially responsible. The results of the research show that the social responsibility of producers affects the purchase of certain products by 20% when purchasing certain products (after quality and price), which is an increase of 10 percentage points compared to the same survey in 2007. When it comes to social responsibility, it is especially important for customers that the manufacturer takes special care of environmental protection, and they are ready to pay more for such a product. Today, customers are more aware that by choosing products they personally affect environmental protection, so 68% of respondents answered that they think about it daily or often when buying, which is an increase of 22 percentage points compared to the same survey in 2007. The positive changes in CSR attitudes over the past fifteen years are an indication that it is very worthwhile for companies to do business in a sustainable way. Consumers recognize and gladly buy those products that are based on socially responsible business, and companies that implement such a way of doing business become more competitive on the market.