International Shipping Information

We proudly ship internationally through Passport, our global shipping partner. Passport provides end-to-end tracking and customer support for international shipments to help ensure a smooth delivery experience.

Passport is DIFF’s standard international shipping provider, and we do not currently offer alternate international shipping methods or carriers.

Order Processing

  • Please allow 3–5 business days for your order to be processed before it ships.
  • Once your order ships, you’ll receive an email with your tracking information.

Shipping & Delivery

Most international orders are shipped using Passport Delivered Duty Paid (DDP) service.

With DDP shipping:

  • Duties and taxes are calculated at checkout when applicable, so customers should not receive additional import charges upon delivery.
  • You’ll receive door-to-door tracking throughout your shipment’s journey.
  • Most deliveries arrive 5–10 business days after Passport receives your package, although delivery times vary by destination and customs processing.

Delivery estimates are not guaranteed. Delays caused by weather, customs processing, holidays, local carriers, or other factors outside of DIFF’s control may occur.

Prescription (RX) Orders

Prescription (RX) orders are currently shipped separately from our standard Passport international shipments.

International RX orders are shipped via USPS, and tracking and delivery times may differ from standard international shipments.

This is a separate fulfillment process and does not mean customers can select USPS or another carrier as an alternative international shipping method at checkout.

Tracking Your Order

Your Passport tracking page may provide:

  • Real-time tracking updates
  • Estimated delivery date
  • Local carrier tracking information when available
  • Shipment status and service alerts

If your shipment requires additional information, such as customs documentation, your tracking page will provide instructions when applicable.

International Returns

International customers are responsible for the cost of return shipping unless DIFF has specifically approved an exception.

DIFF does not currently provide prepaid international return labels as a standard service.

Need Help?

If you have questions about your international shipment, Passport’s support team can assist with:

  • Tracking updates
  • Delivery delays
  • Customs holds
  • Attempted deliveries
  • Other shipment-related questions

You can contact Passport directly at help@passportglobal.com or use the live chat available on your Passport tracking page.

For questions about your DIFF order, prescription, product, or return eligibility, our Customer Experience team is happy to help.




Oct 7, 2026

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