How long is my collected sample stable before it needs to reach the lab?

With the Yenos-validated preservation media added to your specimen, the collected urine sample remains stable for miRNA analysis for up to 72 hours at ambient temperatures (4–37°C). This window is designed to accommodate overnight shipping — your specimen needs to reach Yenos Analytical in El Dorado Hills, California, within 72 hours of collection. The pre-paid return label in your kit is set up for overnight shipping to ensure the sample arrives within this stability window regardless of your location in the continental US. Mail your specimen the same day you collect it to maximize the buffer time. Do not mail on a Friday — specimens mailed on Friday evening may not arrive until Monday, potentially exceeding the stability window.