COA, TDS and SDS: Which Peptide Documents Do You Need?

Use the COA for batch acceptance, the TDS for ingredient and handling review, and the SDS or MSDS for workplace and shipping considerations. A document package is most useful when each file has an identifiable product name, revision and responsible supplier.

An SDS is not a purity certificate. A TDS is not proof that a shipped batch passed testing. A quality-system certificate is not a finished-formula performance report. Ask your purchasing, formulation and quality teams which document supports each approval rather than collecting files without a review purpose.

Use a document register instead of collecting files without a purpose. Assign each decision to its evidence: the specification defines the purchase requirement, the COA reports the batch, the TDS describes technical handling, and the SDS communicates hazards and precautions. Versions and material codes matter because a document for a similar ingredient or a different carrier may describe a different supply item.

Provide the exact ingredient or blend, intended cosmetic application and destination. Ask the supplier to flag any difference in product naming across files. Confirm whether the package is a general reference set or the final batch-specific documentation supplied with an order.

Keep a revision list and identify which changes trigger another technical review. Composition, handling instructions and analytical criteria should not silently drift between sampling and production. When a document changes, ask whether the material itself changed or only the way information is presented.

When two documents disagree, do not choose whichever number is more convenient. Put the order on clarification, identify the conflicting fields and ask the supplier for the governing revision. Keep the written resolution with the quotation. A current file should replace the superseded reference in the purchasing record, while the historical version remains traceable to any batch already evaluated or received.