This study explores the concept of ‘responsibly sourced’ across industries, analyzing how certifications (e.g., Fairtrade, FSC, Conflict-Free) and corporate practices shape consumer behavior and supply chain sustainability. Using a mixed-methods approach—surveys of 800 consumers, interviews with 20 supply chain managers, and case studies of coffee, minerals, and textiles—we identify gaps between sourcing claims and verified practices. Findings reveal that 73% of consumers value ‘responsibly sourced’ labels, but only 34% trust them due to greenwashing concerns. Recommendations include blockchain-enabled traceability, standardized certifications, and policy reforms to align sourcing practices with SDGs.