ZRT Laboratory

ZRT Laboratory is a leading commercial-stage diagnostic laboratory that specializes in innovative hormone and wellness testing. Established in 1998 by Dr. David Zava, the company is recognized for pioneering the use of saliva and dried blood spot testing for clinical applications. Their comprehensive test menu includes assessments for reproductive hormones, adrenal function, thyroid health, and environmental toxins. ZRT Laboratory provides services to healthcare practitioners and individual consumers worldwide, emphasizing the correlation between laboratory data and clinical symptoms. The company maintains CLIA certification and actively participates in clinical research to advance the science of hormone health.