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How do I send peptides for testing from the United States?
The short answer
From the United States a sample to Spain is an international express shipment with a customs declaration. Use FedEx, UPS or DHL Express with a pro-forma invoice describing the contents accurately as a research chemical sample for laboratory analysis with nominal value. Order first to receive the address, the task reference and the declaration wording. Typical transit is two to five working days plus clearance.
In detail
Transatlantic transit varies more than laboratory turnaround does, and customs is where days are won or lost. Express carriers with integrated brokerage are the reliable channel; postal services are slower and harder to trace once they hand over.
Accurate declaration is both the legal and the practical answer: research chemical sample, laboratory analysis, nominal value, one vial. Lyophilised peptide needs no cold packs for a transatlantic transit.
Once received, a US sample follows the same queue and the same 48 to 72 hour target as any other, and its certificate is published in the same public database.
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Iberian Analytical opens in Q1 2027 — €99 per test, 48–72 h target, and every result published in a public database, mandatory and free. Nothing is sold on this site today. Leave an email and we will write once, when the laboratory starts issuing certificates.
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