Cold chain: what a peptide needs to arrive in good shape
Lyophilized synthetic peptides are remarkably stable at room temperature during short transits (≤5 days). Beyond that, or for shipments with thermal risk (Iberian summer, Latin America), thermal packaging with cooling gel pack or dry ice is used to maintain ≤8 °C. Industry standard: expanded polystyrene box + 1-2 kg dry ice + insulating wrap. Some suppliers include visual temperature indicator (TempTale) that records any thermal excursion.
AEAT customs: what to declare and under what code
For extra-EU shipments (USA, China, Switzerland, post-Brexit UK), customs requires: commercial invoice with real value, technical product description, applicable TARIC code (typically 29349990 or 30021000), country of origin and use declaration. For research reagents the standard declaration is 'reference material for biochemical laboratory research'. AEAT randomly inspects 5-10% of B2C shipments declared as reagents.
Spanish VAT: how to invoice
Three scenarios: (1) Intra-EU B2B with valid VAT ID — intra-EU operation, 0% VAT on invoice, self-assessment by recipient. (2) Intra-EU B2C — origin-country VAT up to OSS threshold, destination-country (21% Spain) above. (3) Extra-EU — customs levies Spanish VAT (21%) on dutiable base (value + transport + insurance). Customs handling fees typically €15-40 depending on courier.
Typical lead times to Spain (February 2026)
Intra-EU: Germany, Netherlands, Poland, Italy → 24-48 h with express courier (DHL, UPS, FedEx). Same country (domestic) → same day / 24 h. Extra-EU: USA → 4-7 days + Customs. UK → 5-8 days + post-Brexit Customs. China → 7-14 days + Customs (higher inspection probability). Switzerland → 3-5 days + Customs (EFTA, smoother process).
Documentation to accompany the shipment
For research reagents: (1) Commercial invoice with product breakdown, batch number, unit value and total. (2) Per-batch Certificate of Analysis (CoA) (attached PDF or verifiable link). (3) MSDS safety sheet when applicable. (4) For extra-EU shipments, supplier-signed research-use declaration. Any documentation gap delays customs clearance or, worst-case, triggers shipment hold.
How FormulaPep handles shipments to Spain
Intra-EU dispatch from European logistics hub, e-invoice with VAT charged by destination (intra-EU 0% with VAT ID, B2C 21%), thermal packaging with cold chain when applicable, express courier with tracking and free reshipment if package doesn't arrive within 14 days. Standard delivery to peninsular Spain is 24-48 h with DHL/UPS for orders confirmed before 17:00.
Typical shipping costs to Spain
Intra-EU express: €12-25 by weight (up to 2 kg). With added cold chain (dry ice): +€15-20. Extra-EU with insurance: €30-60. Return / re-shipment for incidents: €0 if caused by carrier or supplier. B2B orders with recurring monthly volume can negotiate flat rates (typically €10-15 per shipment regardless of weight).
Common mistakes that hold shipments at customs
(1) Low declared value — customs estimates value by product type, under-declaring raises suspicion. (2) Ambiguous description — writing 'medical supplies' instead of 'biochemical research reagent' may trigger pharmaceutical inspection. (3) Missing CoA attached to the digital manifest. (4) Private importer without tax ID on B2B shipments — always indicate VAT ID. (5) Pharmaceutical-format labeling — customs may reclassify as unauthorized medicine.
Source: Agencia Tributaria
