John H.
Great customer service
Great customer service and fast shipping. I had an issue with FEDEX losing my sample in the mail and the customer service rep helped me out and shipped another collection kit quickly. Good value for the markers that are being tested.
Response from Rythm HealthFeb 17, 2026
Hey John, we appreciate you being patient with FedEx issues and for sticking with us through it. Thanks for using Rythm!




