Commonly used in natural dyeing, mordants improve color fixation but can pose environmental and health risks when based on toxic metals. The transition toward safer alternatives—such as tannin- or alum-based mordants—reflects both regulatory pressures and brand commitments to safer chemistry.

Suppliers offering low-impact mordants backed by environmental testing and usage data are becoming key partners. B2B platforms connect artisanal and industrial users alike to vetted mordant suppliers committed to safe, traceable practices.