Strong quality control protects your customers and your brand. These are the QC best practices to expect from a good manufacturer.

Key takeaways

  • Expect testing at intake, in-process and per batch.
  • Stability testing confirms shelf life.
  • Traceability enables fast investigation and recall.

Incoming and in-process checks

Raw materials and bulk should be tested at intake and during production, not just at the end.

Batch and stability testing

Each batch should be tested for spec, and formulas stability-tested to confirm shelf life under real conditions. Confirm early which studies your factory includes and which are billed separately — the tests to complete before a first production run are often quoted outside the unit price.

Traceability and records

Full batch records and traceability allow fast investigation and recall if anything goes wrong — agree up front which records your factory keeps and for how long, because retention samples and batch records are not held indefinitely by default.

Guidance compiled by the OEMHallmark research desk. Always verify current certifications, MOQs and terms directly with each manufacturer.