The role of consumers in shaping corporate sustainability has gained increasing attention as businesses strive to align with ethical standards and environmental goals. This paper explores the critical influence of consumer behavior on the achievement of corporate sustainability, with a particular focus on the reduction of unfair commercial practices. Unfair commercial practices, including misleading advertising, hidden charges, and exploitative marketing strategies, undermine consumer trust and contribute to social and environmental harm. Consumers, empowered by access to information and a growing awareness of corporate responsibility, are growing pressure on companies to be more accountable and transparent. This shift in consumer expectations is pressuring companies to adopt fairer practices, reduce their environmental impact, and enhance social equity in their operations.The paper argues that consumers play a pivotal role in driving corporate change by choosing to support companies that prioritize sustainable practices and by actively participating in advocacy against unethical business behaviors. Through case studies and empirical research, the paper demonstrates how consumer activism and ethical consumption have led to significant shifts in corporate policies, resulting in more sustainable business models. Moreover, the research highlights the symbiotic relationship between consumer education and corporate accountability, implying that the long-term viability of sustainable business strategies depends on informed consumers.The findings suggest that while consumers alone cannot enforce corporate sustainability, their collective actions and preferences significantly influence corporate strategies and contribute to the broader movement towards a more sustainable economy. The paper concludes with recommendations for enhancing consumer awareness and engagement, as well as strategies for businesses to align their practices with the evolving expectations of ethically conscious consumers.