The Green Chemist down the Rabbit Hole of Supply Chain Traceability with MeiLin Wan of Genutrace

“If you claim it, can you prove it?®” MeiLin Wan of GenuTrace has spent two decades answering that question — using DNA tagging, isotope analysis, and genomic testing to trace nearly a billion pounds of cotton from source to shelf for retailers like Walmart and Sainsbury’s.

We go down the rabbit hole of forensic traceability: how a material’s natural fingerprint is read, where supply chains really break, and what happens when the science meets beauty — where one formula pulls from dozens of supply chains at once. Which claims can now be proven — “Moroccan argan oil,” Egyptian cotton etc.

With regulation tightening and trust shrinking, an unproven claim is a liability. This is what proof looks like.