UL and NSF GMP Audits Increasingly Focused on Supplier Qualification

A mid-year review of GMP audit findings across the U.S. supplement industry highlights supplier qualification as the fastest-growing area of scrutiny. Auditors are asking for signed quality agreements, current COAs, and documented requalification schedules for every raw-material vendor.

For brands considering a manufacturing partner, the ability to produce a supplier file on demand is now a leading indicator of GMP maturity — arguably more so than facility appearance or equipment lists.

Our supplier program at LeafVenturesLV maintains identity, potency, and contaminant testing on all incoming raw materials, and no ingredient enters a batch record without a matching COA on file.