Cell-Free DNA Urine Preserve

Streck Cell-Free DNA Urine Preserve is an innovative, easy-to-use liquid preservative that stabilises cfDNA in urine samples.

Samples treated with Cell-Free DNA Urine Preserve are stable for up to 7 days when stored at 6°C to 37°C, eliminating the adverse effects time, storage and transport conditions have on sample integrity.


The discovery of cell-free DNA (cfDNA) in peripheral blood has been extensively studied and documented. The detected DNA can originate from a tumour, fetus or transplanted organs. More recently, it has been determined that small amounts of cfDNA can pass the kidney barrier and end up in urine.

Urine is a truly non-invasive source of cfDNA, a clear advantage over peripheral blood. The cfDNA isolated can be used for various applications, including disease monitoring (diagnosis, prognosis and treatment efficacy) and as a screening tool for hereditary conditions.


  • Cell-Free DNA Urine Preserve is contained in easy-to-dispense, one-time use vials

  • The blue PCR compatible dye provides visual reassurance that reagent was added.

  • 5.0mL of liquid reagent is appropriate to preserve individual urine sample volumes from 25mL to 100mL.

  • Streck Cell-Free DNA Urine Preserve has 24-months shelf life from the date of manufacture.

Cell-Free DNA Urine Preserve Products