Which documents should a pet supplement buyer request before placing an order?

A practical pre-order pack normally includes the approved formula or composition statement, finished-product specification, sample certificate of analysis, ingredient specifications, packaging specification, label draft, shelf-life support, manufacturing-site information and applicable quality certificates. Depending on market and risk, buyers may also request contaminant, microbiological, identity or stability evidence. Documents should identify the product and revision clearly. Certificates are supporting evidence, not substitutes for destination-market classification or importer due diligence.