Dose form drives supplier choice
Capsules, tablets, powders, softgels and gummies use different equipment and different minimums. Decide the dose form before shortlisting, or ask the supplier to advise and price two options.
Testing and documentation
Ask what identity, potency and contaminant testing is included, who holds the certificates of analysis, and how raw material suppliers are qualified.
Labels and responsibility
Confirm who drafts and approves label content and claims, and how label changes are controlled between runs.