Social responsibility has become a growing priority for both companies and consumers worldwide. While firms are expected to align profitability with societal well-being, consumers increasingly prefer products and services from companies that demonstrate strong social and environmental responsibility. This study investigates how Portuguese consumers perceive and behave regarding corporate social responsibility, aiming to deepen understanding and increase scientific information on this crucial subject. Based on a sample of 154 valid responses, collected in an online questionnaire, this study concludes that consumers intention to purchase products and services produced by socially responsible companies is influenced by consumers’ sociodemographic characteristics, access to information, perceptions and attitudes towards social and environmental issues. Findings also allow to suggest that consumers’ purchasing intention influences their socially responsible behavior. With these conclusions, this research aims to help policymakers implement efficient measures and policies that, on the one hand, encourage companies to be more socially responsible, and, on the other hand, promote greater awareness and encourage citizens to consume in a more responsible and sustainable way.