The SupplyChainBrain Podcast The Cutting Edge of Product Traceability
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Aug 15, 2025 Mei-Lin Wan, a former executive at Applied DNA Sciences and founder of GenuTrace LLC, dives into the groundbreaking world of product traceability. She discusses how DNA testing and blockchain technology are revolutionizing supply chains, particularly in textiles. Wan emphasizes the importance of verifying product authenticity amid sustainability claims, highlighting challenges in industries like cotton and olive oil. She calls for a collaborative approach among CEOs, manufacturers, and retailers to embrace traceability and navigate new regulations effectively.
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Traceability Requires Multiple Technologies
- Evidence-based traceability now combines DNA, isotope testing, physical tracers, and digital tools for strong product provenance.
- Mei-Lin Wan argues this multi-tool approach is necessary to verify ethical and regulatory claims across supply chains.
Back Claims With Science
- Do not make sustainability or origin claims without science-backed proof like DNA or isotope tests and documentation.
- Mei-Lin Wan urges companies to treat traceability as a strategic imperative, not marketing window dressing.
DNA Versus Isotopes Explained
- DNA testing identifies species and variety while isotope testing fingerprints geographic origin via element ratios.
- Wan notes both methods serve different purposes and can complement each other for content and origin verification.