Find your nearest shipping center

Returning your sample via FedEx

If your kit included a FedEx return shipping label, you can drop off your sample at any FedEx location within the contiguous United States.

Find a FedEx location

Shipping from outside the contiguous US?

See our international shipping options.

Need packing instructions?

Log in to your 3X4 account or scan the QR code in your kit to access packing instructions. You can also refer to these articles:

• How to return your DNA sample to the lab
• Shipping & Packaging for DNA Sample Shipments