By Wholesale Lab Peptides · Published · Procurement guide
A product name is not a sample identifier.
Two BPC-157 containers can carry the same product name while representing different sampling events. Give each submitted item an unambiguous reference. Record who selected it, when, the stated source lot and whether it is an unopened supplied unit or a separately prepared sample.
A chain-of-custody record follows possession and handling. The batch traceability guide connects commercial lots and deliveries; this checklist follows the particular item submitted for testing. Agree the sample requirements, handling instructions and requested tests with the laboratory before dispatch.
Keep the container and paperwork connected.
| Stage | Record to retain | Question to resolve |
|---|---|---|
| Selection | Sample ID, named material, source lot, selector and date. | What does this item represent? |
| Pack-out | Container count, labels, condition and seal reference if used. | Can the receiving team identify each item? |
| Handoff | Sender, receiver, date, time and transport reference. | Who held or controlled the sample next? |
| Laboratory receipt | Arrival date, receiver, observed condition and discrepancies. | Does receipt agree with the submitted record? |
| Laboratory identification | Client sample ID linked to the assigned laboratory ID. | Which ID will appear on the results? |
| Report review | Laboratory ID, report reference, revision and relevant dates. | Can the reviewer follow the tested item back to submission? |
Use the laboratory's accepted form or agree equivalent fields. Include a time zone when different locations make a timestamp ambiguous.
Keep observations and decisions separate.
Ask for the laboratory's intake acknowledgement and any recorded concerns about labels, leakage, missing items or handling conditions. If seals were used, retain their identifiers and observed condition. A photograph can support a condition note, but it cannot establish an unseen transport history.
EPA's published 2015 antimicrobial-product custody procedure records shipping-container, product and seal condition, documents paperwork deficiencies and distinguishes sample receipt from later transfers. Its product-specific procedure is an example of recorded custody, not a peptide submission protocol or a testing relationship with this business.
For missing or conflicting information, retain the original observation and written clarification. Ask the laboratory how the discrepancy affects acceptance or interpretation; avoid silently replacing an unclear identifier.
Keep a simple client-to-laboratory cross-reference.
A laboratory may assign its own code to your GHK-Cu or Semax sample. Keep that code beside the submitted sample ID and container description. If the laboratory subdivides the item, request the relationship between the original and resulting references.
NATA's assessment worksheet with a GCLP overlay, pages 22–23 addresses identification through subdivision or transfer, receipt deviations and recorded handling. This explains the record connections to ask about; it does not certify our supply or establish that any named laboratory tested it.
For a vial or defined pen-style kit, identify exactly which component was submitted. Testing the material does not establish results for the carton, device or every accessory. Wholesale content and pack configurations remain subject to enquiry.
Custody and sampling answer different questions.
A complete handoff history identifies the submitted item; it does not demonstrate that selection represented an entire lot. Keep the sampling basis and its limitations beside the custody record. For blends, preserve unresolved component specifications rather than treating one identified sample as a complete composition check.
When the report arrives, reconcile its sample reference and revision with the intake record. Review the actual measurements separately using the COA checklist and LC-MS identity guide. Keep any laboratory qualification or unresolved discrepancy attached to the purchasing review.
Send the material and documentation brief together.
Include named peptides, requested quantities, vial or defined kit presentation, destination in the USA, Canada or Australia, and the sample records your review needs. Request confirmation of feasibility, available documents and any separately agreed testing scope or costs.
Discuss sample documentation requirementsBrowse the wholesale catalogue, discuss OEM and private-label supply, or email sales@wholesalelabpeptides.com.