ZRT is a CLIA certified diagnostic laboratory and the leader in hormone and wellness testing. We provide accurate and meaningful test results that assist healthcare providers in making informed treatment decisions.
In 15 years ZRT has tested over 2 million people, and currently performs testing for over 4,000 healthcare providers in 26 countries and all 50 states. ZRT is also engaged in ongoing collaborative clinical research with investigators around the world, including the CDC, NIH and prominent universities.
Headquartered in Portland, Oregon, ZRT is the recognized innovator of saliva, dried blood spot and dried urine testing methodologies. The company was honored to earn a place on the list of 100 Best Companies to Work For in Oregon this year.
We have well over 200 years of collective knowledge in modern
and alternative medicine. We help our client's
restore their health.
We sell most other products that are not listed on our website.
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