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Reference Guide
ZRT Laboratory

ZRT Laboratory

Order, track, and receive results from 30+ labs in one place.

About the Lab

ZRT Laboratory has pioneered innovative testing methods for hormones, neurotransmitters, heavy metals, and more, offering healthcare professionals convenient testing options in different body fluids, including saliva, dried blood spot, dried urine, and serum.

ZRT is focused on hormone and wellness testing, recognizing that hormonal imbalances are the root cause of many chronic health issues. They aim to make lab testing easier with at-home collection methods using dried blood spot, saliva, or dried urine.

The testing information helps practitioners diagnose and manage hormone imbalances, weight management, heavy metals toxicity, stress management, breast cancer risk, neurotransmitters, cardiometabolic health, and overall wellness.

Founded by breast cancer researcher David Zava, Ph.D., in 1998 in Beaverton, Oregon, ZRT Laboratory is a CLIA-certified commercial and research laboratory with over 20 years of experience.

They work with health care providers in all 50 states and in 96 countries, as well as organizations worldwide, including the CDC, the NIH, and many renowned universities.

ZRT is dedicated to “providing the most accurate results with the most educated insight into their meaning.” All test reports are comprehensive and physician-reviewed.

They provide on-call clinician support to practitioners to assist with questions, interpretation, and treatment advice. Educational resources are also available for practitioners and patients on tests and related health issues.

The tests and testing methods employed are supported by collaborative research and knowledge from health care professionals and biochemists focusing on physiology and endocrinology.

Their laboratory testing ensures adherence to the highest standards of accuracy and use of advanced methodology, with internal and external validation controls.

About the Lab

ZRT lab specializes in hormone testing, done in both blood spot and saliva. They also offer an array of other tests in bloodspot, urine and saliva.

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Quality Control Process

Lab Company Information
2 - 3 days
Shipment Tracking
Provides Tracking Number
Does Not Provide Tracking Number
Avg. Sample Processing
7 days
Consultation Availability
CLIA Certified
CAP Accredited
ISO 15189
COLA Accredited
Order, track, and receive results from 30+ labs in one place.