The aim of this thesis is to look at aspects of dealing with companies by corporate social responsibility, that is, what is exactly their fundamental purpose - ethical business or just one of the marketing activities that is realized in order to achieve greater profits. The introductory part presents the object and purpose of the research of this thesis and also briefly describes its structure. In the second part the focus is on the concept of corporate social responsibility, and what impact it may have on the company itself, consumers, community and the environment. In this part of the thesis the ethical principles of corporate social responsibility will also be addressed. The third part deals with the concept of marketing and ethics in that domain. The fourth part analyzes the corporate social responsibility of company DM - Drogerie Markt Croatia which operates in Croatia and the effects achieved by such management. In the final section there is a review of the fundamental conclusions drawn from the facts presented after analyzing the topic.