Your kit includes a prepaid FedEx Priority Overnight return label. After collecting and packaging your sample according to the kit instructions, you can arrange a pickup or take it to a FedEx location.
Return your sample the same day you collect it, ideally Monday through Thursday.
Ship your sample within 7 days of receiving your kit for the fastest processing. While samples can be sent later, delays may affect turnaround times.
Scheduling a pickup
Scan the QR code on your sample bag.
Complete your sample collection details.
Select the option to schedule a FedEx pickup.
Enter your pickup information and any helpful notes, such as where the package will be located. Include a callback phone number for confirmation.
Select an available pickup window and confirm.
Dropping off your sample
Use the FedEx location finder to find a nearby staffed location that accepts your return. Check its hours and pickup schedule before visiting.
Use FedEx for your sample return. If you accidentally give your sample to another carrier, contact Rythm support promptly. Do not use USPS or other carriers, as this may prevent your sample from reaching the lab. Samples must be shipped from within the United States due to time-sensitive processing requirements.
If your driver doesn’t arrive, see What to do if FedEx misses your pickup window.
If your return shipment is delayed, the collection tube includes a stabilizing agent to maintain sample integrity. The lab will notify you if there are any issues, and you can request a complimentary replacement kit if needed.